DigitalInfinity/ESP32-PaxCounter
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Merge branch 'development' into master

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Verkehrsrot 2019-03-15 19:58:02 +01:00 committed by GitHub
commit d3a7d35959
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41 changed files with 806 additions and 204 deletions
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2
.gitignore vendored
View File

@ -11,5 +11,3 @@
.gcc-flags.json
src/loraconf.h
src/ota.conf
src/DBtimesync.cpp
include/DBtimesync.h

8
README.md
View File

@ -49,7 +49,7 @@ Depending on board hardware following features are supported:
- Silicon unique ID
- Battery voltage monitoring
- GPS (Generic serial NMEA, or Quectel L76 I2C)
- Environmental sensor (Bosch BME680 I2C)
- Environmental sensor (Bosch BME280/BME680 I2C)
- Real Time Clock (Maxim DS3231 I2C)
- IF482 (serial) and DCF77 (gpio) time telegram generator
@ -86,7 +86,7 @@ If your device has a fixed DEVEUI enter this in your local loraconf.h file. Duri
If your device has silicon **Unique ID** which is stored in serial EEPROM Microchip 24AA02E64 you don't need to change anything. The Unique ID will be read during startup and DEVEUI will be generated from it, overriding settings in loraconf.h.
If your device has a **real time clock** it can be updated bei either LoRaWAN network or GPS time, according to settings *TIME_SYNC_INTERVAL* and *TIME_SYNC_LORA* in paxcounter.conf.
If your device has a **real time clock** it can be updated bei either LoRaWAN network or GPS time, according to settings *TIME_SYNC_INTERVAL* and *TIME_SYNC_LORAWAN* in paxcounter.conf.
# Building
@ -366,6 +366,10 @@ Note: all settings are stored in NVRAM and will be reloaded when device starts.
Device answers with it's local time/date (UTC Unix epoch) on Port 9.
0x87 set time/date
Device synchronizes it's time/date by calling the preconfigured time source.
# License

10
include/bme680mems.h → include/bmesensor.h
View File

@ -1,9 +1,15 @@
#ifndef _BME680MEMS_H
#define _BME680MEMS_H
#ifndef _BMESENSOR_H
#define _BMESENSOR_H
#include "globals.h"
#include <Wire.h>
#ifdef HAS_BME680
#include "../lib/Bosch-BSEC/src/bsec.h"
#elif defined HAS_BME280
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#endif
extern bmeStatus_t
bme_status; // Make struct for storing gps data globally available

6
include/cyclic.h
View File

@ -5,10 +5,12 @@
#include "senddata.h"
#include "rcommand.h"
#include "spislave.h"
#if(HAS_LORA)
#include <lmic.h>
#endif
#ifdef HAS_BME
#include "bme680mems.h"
#if (HAS_BME)
#include "bmesensor.h"
#endif
extern Ticker housekeeper;

12
include/globals.h
View File

@ -5,7 +5,7 @@
#include <Arduino.h>
// Time functions
#include <Time.h>
#include "microTime.h"
#include <Timezone.h>
#include <RtcDateTime.h>
#include <Ticker.h>
@ -123,11 +123,11 @@ extern time_t userUTCTime;
#include "payload.h"
#include "blescan.h"
#ifdef HAS_GPS
#if(HAS_GPS)
#include "gpsread.h"
#endif
#ifdef HAS_LORA
#if(HAS_LORA)
#include "lorawan.h"
#endif
@ -147,12 +147,12 @@ extern time_t userUTCTime;
#include "antenna.h"
#endif
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
#include "sensor.h"
#endif
#ifdef HAS_BME
#include "bme680mems.h"
#if (HAS_BME)
#include "bmesensor.h"
#endif
#endif

4
include/lorawan.h
View File

@ -4,8 +4,8 @@
#include "globals.h"
#include "rcommand.h"
#include "timekeeper.h"
#if(DBTIMESYNC)
#include "DBtimesync.h"
#if(TIME_SYNC_TIMESERVER)
#include "timesync.h"
#endif
// LMIC-Arduino LoRaWAN Stack

2
include/main.h
View File

@ -16,6 +16,8 @@
#include "irqhandler.h"
#include "led.h"
#include "spislave.h"
#if(HAS_LORA)
#include "lorawan.h"
#endif
#include "timekeeper.h"
#endif

4
include/payload.h
View File

@ -20,7 +20,8 @@
#endif
// MyDevices CayenneLPP 2.0 types for Packed Sensor Payload, not using channels, but different FPorts
// MyDevices CayenneLPP 2.0 types for Packed Sensor Payload, not using channels,
// but different FPorts
#define LPP_GPS 136 // 3 byte lon/lat 0.0001 °, 3 bytes alt 0.01m
#define LPP_TEMPERATURE 103 // 2 bytes, 0.1°C signed MSB
#define LPP_DIGITAL_INPUT 0 // 1 byte
@ -40,6 +41,7 @@ public:
void reset(void);
uint8_t getSize(void);
uint8_t *getBuffer(void);
void addByte(uint8_t value);
void addCount(uint16_t value, uint8_t sniffytpe);
void addConfig(configData_t value);
void addStatus(uint16_t voltage, uint64_t uptime, float cputemp, uint32_t mem,

6
include/rcommand.h
View File

@ -4,13 +4,15 @@
#include "senddata.h"
#include "cyclic.h"
#include "configmanager.h"
#if(HAS_LORA)
#include "lorawan.h"
#endif
#include "macsniff.h"
#include <rom/rtc.h>
#include "cyclic.h"
#include "timekeeper.h"
#if(DBTIMESYNC)
#include "DBtimesync.h"
#if(TIME_SYNC_TIMESERVER)
#include "timesync.h"
#endif
// table of remote commands and assigned functions

2
include/senddata.h
View File

@ -2,7 +2,9 @@
#define _SENDDATA_H
#include "spislave.h"
#if(HAS_LORA)
#include "lorawan.h"
#endif
#include "cyclic.h"
extern Ticker sendcycler;

2
include/timekeeper.h
View File

@ -6,7 +6,7 @@
#include "TimeLib.h"
#include "irqhandler.h"
#ifdef HAS_GPS
#if(HAS_GPS)
#include "gpsread.h"
#endif
#ifdef HAS_IF482

20
include/timesync.h Normal file
View File

@ -0,0 +1,20 @@
#ifndef _TIME_SYNC_TIMESERVER_H
#define _TIME_SYNC_TIMESERVER_H
#include <chrono>
#include "globals.h"
#include "timesync.h"
#include "timekeeper.h"
#define TIME_SYNC_SAMPLES 5 // number of time requests for averaging
#define TIME_SYNC_CYCLE 60 // seconds between two time requests
#define TIME_SYNC_TIMEOUT 120 // timeout seconds waiting for timeserver answer
#define TIME_SYNC_TRIGGER 100 // time deviation in millisec triggering a sync
#define TIME_SYNC_FRAME_LENGTH 0x06 // timeserver answer frame length
void send_timesync_req(void);
int recv_timesync_ans(uint8_t buf[], uint8_t buf_len);
void process_timesync_req(void *taskparameter);
void store_time_sync_req(time_t t_millisec);
#endif

0
lib/microTime/src/Time.cpp → lib/microTime/src/microTime.cpp
View File

0
lib/microTime/src/Time.h → lib/microTime/src/microTime.h
View File

8
platformio.ini
View File

@ -30,10 +30,10 @@ description = Paxcounter is a proof-of-concept ESP32 device for metering passeng
[common]
; for release_version use max. 10 chars total, use any decimal format like "a.b.c"
release_version = 1.7.36
release_version = 1.7.38
; DEBUG LEVEL: For production run set to 0, otherwise device will leak RAM while running!
; 0=None, 1=Error, 2=Warn, 3=Info, 4=Debug, 5=Verbose
debug_level = 3
debug_level = 4
; UPLOAD MODE: select esptool to flash via USB/UART, select custom to upload to cloud for OTA
upload_protocol = esptool
;upload_protocol = custom
@ -53,9 +53,11 @@ lib_deps_gps =
TinyGPSPlus@>=1.0.2
lib_deps_rtc =
RTC@^2.3.0
lib_deps_sensors =
Adafruit Unified Sensor@^1.0.3
Adafruit BME280 Library@1.0.8
lib_deps_basic =
ArduinoJson@^5.13.1
Time@>=1.5
Timezone@^1.2.2
lib_deps_all =
${common.lib_deps_basic}

249
src/TTN/Nodered-Timeserver.json Normal file
View File

@ -0,0 +1,249 @@
[
{
"id": "49e3c067.e782e",
"type": "change",
"z": "449c1517.e25f4c",
"name": "Payload",
"rules": [
{
"t": "change",
"p": "topic",
"pt": "msg",
"from": "up",
"fromt": "str",
"to": "down",
"tot": "str"
},
{
"t": "move",
"p": "payload",
"pt": "msg",
"to": "payload.payload_raw",
"tot": "msg"
},
{
"t": "set",
"p": "payload.port",
"pt": "msg",
"to": "9",
"tot": "num"
},
{
"t": "set",
"p": "payload.confirmed",
"pt": "msg",
"to": "false",
"tot": "bool"
},
{
"t": "set",
"p": "payload.schedule",
"pt": "msg",
"to": "replace",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 220,
"y": 360,
"wires": [
[
"84f1cda2.069e7"
]
]
},
{
"id": "cc140589.dea168",
"type": "mqtt in",
"z": "449c1517.e25f4c",
"name": "listen",
"topic": "+/devices/+/up",
"qos": "2",
"broker": "2a15ab6f.ab2244",
"x": 70,
"y": 120,
"wires": [
[
"9f4b8dd3.2f0d2"
]
]
},
{
"id": "72d5e7ee.d1eba8",
"type": "mqtt out",
"z": "449c1517.e25f4c",
"name": "send",
"topic": "",
"qos": "",
"retain": "",
"broker": "2a15ab6f.ab2244",
"x": 690,
"y": 360,
"wires": []
},
{
"id": "4f97d75.6c87528",
"type": "json",
"z": "449c1517.e25f4c",
"name": "Convert",
"property": "payload",
"action": "",
"pretty": false,
"x": 220,
"y": 200,
"wires": [
[
"8ed813a9.a9319"
]
]
},
{
"id": "9f4b8dd3.2f0d2",
"type": "switch",
"z": "449c1517.e25f4c",
"name": "Timeport",
"property": "payload",
"propertyType": "msg",
"rules": [
{
"t": "cont",
"v": "\"port\":9",
"vt": "str"
}
],
"checkall": "true",
"repair": false,
"outputs": 1,
"x": 220,
"y": 120,
"wires": [
[
"4f97d75.6c87528"
]
]
},
{
"id": "f4c5b6de.f95148",
"type": "function",
"z": "449c1517.e25f4c",
"name": "Time_Sync_Ans",
"func": "/* LoRaWAN Timeserver\n\nconstruct 6 byte timesync_answer from gateway timestamp and node's time_sync_req\n\nbyte meaning\n0 sequence number (taken from node's time_sync_req)\n1..4 current second (from epoch time 1970)\n5 1/250ths fractions of current second\n\n*/\n\n let buf = new ArrayBuffer(6);\n let timestamp = (+new Date(msg.payload.metadata.gateways[0].time));\n \n var seconds = Math.floor(timestamp/1000);\n var fractions = (timestamp % 1000) / 4;\n var seqno = msg.payload.payload_raw[0];\n\n new DataView(buf).setUint8(0, seqno);\n new DataView(buf).setUint32(1, seconds);\n new DataView(buf).setUint8(5, fractions);\n\n msg.payload = new Buffer(new Uint8Array(buf));\n \n return msg;",
"outputs": 1,
"noerr": 0,
"x": 400,
"y": 280,
"wires": [
[
"49e3c067.e782e"
]
]
},
{
"id": "dac8aafa.389298",
"type": "json",
"z": "449c1517.e25f4c",
"name": "Convert",
"property": "payload",
"action": "",
"pretty": false,
"x": 540,
"y": 360,
"wires": [
[
"72d5e7ee.d1eba8"
]
]
},
{
"id": "8ed813a9.a9319",
"type": "base64",
"z": "449c1517.e25f4c",
"name": "Decode",
"action": "",
"property": "payload.payload_raw",
"x": 380,
"y": 200,
"wires": [
[
"f868bce2.dde67"
]
]
},
{
"id": "84f1cda2.069e7",
"type": "base64",
"z": "449c1517.e25f4c",
"name": "Encode",
"action": "",
"property": "payload.payload_raw",
"x": 380,
"y": 360,
"wires": [
[
"dac8aafa.389298"
]
]
},
{
"id": "6190967b.01f758",
"type": "comment",
"z": "449c1517.e25f4c",
"name": "LoRaWAN Timeserver",
"info": "PLEASE NOTE: There is a patent filed for the time sync algorithm used in the\ncode of this file. The shown implementation example is covered by the\nrepository's licencse, but you may not be eligible to deploy the applied\nalgorithm in applications without granted license by the patent holder.",
"x": 120,
"y": 40,
"wires": []
},
{
"id": "f868bce2.dde67",
"type": "switch",
"z": "449c1517.e25f4c",
"name": "Timechecker",
"property": "payload.metadata.gateways[0].time",
"propertyType": "msg",
"rules": [
{
"t": "lte",
"v": "payload.metadata.time",
"vt": "msg"
}
],
"checkall": "true",
"repair": false,
"outputs": 1,
"x": 550,
"y": 200,
"wires": [
[
"f4c5b6de.f95148"
]
]
},
{
"id": "2a15ab6f.ab2244",
"type": "mqtt-broker",
"z": "",
"name": "eu.thethings.network:1883",
"broker": "eu.thethings.network",
"port": "1883",
"tls": "",
"clientid": "",
"usetls": false,
"compatmode": true,
"keepalive": "60",
"cleansession": true,
"birthTopic": "",
"birthQos": "0",
"birthPayload": "",
"closeTopic": "",
"closeQos": "0",
"closePayload": "",
"willTopic": "",
"willQos": "0",
"willPayload": ""
}
]

8
src/TTN/packed_decoder.js
View File

@ -63,6 +63,14 @@ function Decoder(bytes, port) {
return decode(bytes, [uint16], ['voltage']);
}
if (port === 9) {
// timesync request
if (bytes.length === 1) {
decoded.timesync_seqno = bytes[0];
}
return decoded;
}
}

6
src/TTN/plain_decoder.js
View File

@ -67,6 +67,12 @@ function Decoder(bytes, port) {
decoded.battery = (bytes[i++] << 8) | bytes[i++];}
}
if (port === 9) {
if (bytes.length === 1) {
decoded.timesync_seqno = bytes[0];
}
}
return decoded;
}

58
src/bme680mems.cpp → src/bmesensor.cpp
View File

@ -1,6 +1,6 @@
#ifdef HAS_BME
#if (HAS_BME)
#include "bme680mems.h"
#include "bmesensor.h"
// Local logging tag
static const char TAG[] = __FILE__;
@ -8,6 +8,9 @@ static const char TAG[] = __FILE__;
bmeStatus_t bme_status;
TaskHandle_t BmeTask;
#define SEALEVELPRESSURE_HPA (1013.25)
#ifdef HAS_BME680
bsec_virtual_sensor_t sensorList[10] = {
BSEC_OUTPUT_RAW_TEMPERATURE,
BSEC_OUTPUT_RAW_PRESSURE,
@ -26,16 +29,25 @@ uint16_t stateUpdateCounter = 0;
Bsec iaqSensor;
#elif defined HAS_BME280
Adafruit_BME280 bme; // I2C
// Adafruit_BME280 bme(BME_CS); // hardware SPI
// Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
#endif
// initialize BME680 sensor
int bme_init(void) {
// return = 0 -> error / return = 1 -> success
#ifdef HAS_BME680
// block i2c bus access
if (I2C_MUTEX_LOCK()) {
Wire.begin(HAS_BME);
iaqSensor.begin(BME_ADDR, Wire);
Wire.begin(HAS_BME680);
iaqSensor.begin(BME680_ADDR, Wire);
ESP_LOGI(TAG, "BSEC v%d.%d.%d.%d", iaqSensor.version.major,
iaqSensor.version.minor, iaqSensor.version.major_bugfix,
@ -66,6 +78,26 @@ int bme_init(void) {
goto error;
}
#elif defined HAS_BME280
bool status;
// return = 0 -> error / return = 1 -> success
// block i2c bus access
if (I2C_MUTEX_LOCK()) {
status = bme.begin(BME280_ADDR);
if (!status) {
ESP_LOGE(TAG, "BME280 sensor not found");
goto error;
}
ESP_LOGI(TAG, "BME280 sensor found and initialized");
} else {
ESP_LOGE(TAG, "I2c bus busy - BME280 initialization error");
goto error;
}
#endif
I2C_MUTEX_UNLOCK(); // release i2c bus access
return 1;
@ -75,6 +107,8 @@ error:
} // bme_init()
#ifdef HAS_BME680
// Helper function definitions
int checkIaqSensorStatus(void) {
int rslt = 1; // true = 1 = no error, false = 0 = error
@ -97,13 +131,14 @@ int checkIaqSensorStatus(void) {
return rslt;
} // checkIaqSensorStatus()
#endif
// loop function which reads and processes data based on sensor settings
void bme_loop(void *pvParameters) {
configASSERT(((uint32_t)pvParameters) == 1); // FreeRTOS check
#ifdef HAS_BME
#ifdef HAS_BME680
while (1) {
// block i2c bus access
if (I2C_MUTEX_LOCK()) {
@ -122,12 +157,24 @@ void bme_loop(void *pvParameters) {
I2C_MUTEX_UNLOCK();
}
}
#elif defined HAS_BME280
while (1) {
if (I2C_MUTEX_LOCK()) {
bme_status.temperature = bme.readTemperature();
bme_status.pressure =
(bme.readPressure() / 100.0); // conversion Pa -> hPa
// bme.readAltitude(SEALEVELPRESSURE_HPA);
bme_status.humidity = bme.readHumidity();
I2C_MUTEX_UNLOCK();
}
}
#endif
ESP_LOGE(TAG, "BME task ended");
vTaskDelete(BmeTask); // should never be reached
} // bme_loop()
#ifdef HAS_BME680
void loadState(void) {
if (cfg.bsecstate[BSEC_MAX_STATE_BLOB_SIZE] == BSEC_MAX_STATE_BLOB_SIZE) {
// Existing state in NVS stored
@ -167,5 +214,6 @@ void updateState(void) {
saveConfig();
}
}
#endif
#endif // HAS_BME

14
src/cyclic.cpp
View File

@ -24,7 +24,7 @@ void doHousekeeping() {
#ifdef HAS_SPI
spi_housekeeping();
#endif
#ifdef HAS_LORA
#if(HAS_LORA)
lora_housekeeping();
#endif
@ -32,11 +32,11 @@ void doHousekeeping() {
ESP_LOGD(TAG, "IRQhandler %d bytes left | Taskstate = %d",
uxTaskGetStackHighWaterMark(irqHandlerTask),
eTaskGetState(irqHandlerTask));
#ifdef HAS_GPS
#if(HAS_GPS)
ESP_LOGD(TAG, "Gpsloop %d bytes left | Taskstate = %d",
uxTaskGetStackHighWaterMark(GpsTask), eTaskGetState(GpsTask));
#endif
#ifdef HAS_BME
#if (HAS_BME)
ESP_LOGD(TAG, "Bmeloop %d bytes left | Taskstate = %d",
uxTaskGetStackHighWaterMark(BmeTask), eTaskGetState(BmeTask));
#endif
@ -58,11 +58,17 @@ void doHousekeeping() {
#endif
// display BME sensor data
#ifdef HAS_BME
#ifdef HAS_BME680
ESP_LOGI(TAG, "BME680 Temp: %.2f°C | IAQ: %.2f | IAQacc: %d",
bme_status.temperature, bme_status.iaq, bme_status.iaq_accuracy);
#endif
// display BME280 sensor data
#ifdef HAS_BME280
ESP_LOGI(TAG, "BME680 Temp: %.2f°C | Humidity: %.2f | Pressure: %.0f",
bme_status.temperature, bme_status.humidity, bme_status.pressure);
#endif
// check free heap memory
if (ESP.getMinFreeHeap() <= MEM_LOW) {
ESP_LOGI(TAG,

8
src/display.cpp
View File

@ -105,7 +105,7 @@ void init_display(const char *Productname, const char *Version) {
u8x8.print(" v");
u8x8.println(PROGVERSION);
#ifdef HAS_LORA
#if(HAS_LORA)
u8x8.println("DEVEUI:");
os_getDevEui((u1_t *)buf);
DisplayKey(buf, 8, true);
@ -163,7 +163,7 @@ void refreshtheDisplay() {
#endif
// update GPS status (line 2)
#ifdef HAS_GPS
#if(HAS_GPS)
// have we ever got valid gps data?
if (gps.passedChecksum() > 0) {
u8x8.setCursor(9, 2);
@ -186,7 +186,7 @@ void refreshtheDisplay() {
u8x8.printf("%s", "BLTH:off");
#endif
#ifdef HAS_LORA
#if(HAS_LORA)
u8x8.setCursor(11, 3);
u8x8.printf("SF:");
if (cfg.adrmode) // if ADR=on then display SF value inverse
@ -209,7 +209,7 @@ void refreshtheDisplay() {
u8x8.setCursor(10, 5);
u8x8.printf("%4dKB", getFreeRAM() / 1024);
#ifdef HAS_LORA
#if(HAS_LORA)
u8x8.setCursor(0, 6);
#if (!defined HAS_DCF77) && (!defined HAS_IF482)
// update LoRa status display (line 6)

2
src/gpsread.cpp
View File

@ -1,4 +1,4 @@
#ifdef HAS_GPS
#if(HAS_GPS)
#include "globals.h"

8
src/hal/generic.h
View File

@ -18,8 +18,12 @@
// enable only if device has these sensors, otherwise comment these lines
// BME680 sensor on I2C bus
#define HAS_BME GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
#define BME_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
#define HAS_BME 1 // Enable BME sensors in general
#define HAS_BME680 GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
#define BME680_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
// BME280 sensor on I2C bus
//#define HAS_BME 1 // Enable BME sensors in general
//#define HAS_BME280 GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
// user defined sensors
//#define HAS_SENSORS 1 // comment out if device has user defined sensors

8
src/hal/heltec.h
View File

@ -1,3 +1,4 @@
// clang-format off
#ifndef _HELTEC_H
@ -7,8 +8,9 @@
// Hardware related definitions for Heltec V1 LoRa-32 Board
//#define HAS_BME GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
//#define BME_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
//#define HAS_BME 1 // Enable BME sensors in general
//#define HAS_BME680 GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
//#define BME680_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
#define HAS_LORA 1 // comment out if device shall not send data via LoRa
#define CFG_sx1276_radio 1
@ -25,6 +27,6 @@
// Pins for LORA chip SPI interface come from board file, we need some
// additional definitions for LMIC
#define LORA_IO1 (33)
#define LORA_IO2 LMIC_UNUSED_PIN
#define LORA_IO2 (32)
#endif

9
src/hal/heltecv2.h
View File

@ -7,8 +7,9 @@
// Hardware related definitions for Heltec V2 LoRa-32 Board
//#define HAS_BME GPIO_NUM_4, GPIO_NUM_15 // SDA, SCL
//#define BME_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
//#define HAS_BME 1 // Enable BME sensors in general
//#define HAS_BME680 GPIO_NUM_4, GPIO_NUM_15 // SDA, SCL
//#define BME680_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
#define HAS_LORA 1 // comment out if device shall not send data via LoRa
#define CFG_sx1276_radio 1
@ -17,6 +18,10 @@
#define HAS_LED LED_BUILTIN // white LED on board
#define HAS_BUTTON KEY_BUILTIN // button "PROG" on board
//#define HAS_BATTERY_PROBE ADC2_GPIO13_CHANNEL // battery probe GPIO pin
#define BATT_FACTOR 4 // voltage divider 220k/100k on board
#define HAS_LOWPOWER_SWITCH GPIO_NUM_21 // switches battery power
// Pins for I2C interface of OLED Display
#define MY_OLED_SDA (4)
#define MY_OLED_SCL (15)

1
src/hal/lolin32lite.h
View File

@ -7,6 +7,7 @@
// Hardware related definitions for lolin32lite (without LoRa shield)
#define HAS_LORA 0 // no LoRa module
#define CFG_sx1272_radio 1 // dummy
#define HAS_LED LED_BUILTIN // on board LED on GPIO5
#define LED_ACTIVE_LOW 1 // Onboard LED is active when pin is LOW

5
src/hal/octopus32.h
View File

@ -12,8 +12,9 @@
#define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
// Octopus32 has a pre-populated BME680 on i2c addr 0x76
#define HAS_BME GPIO_NUM_23, GPIO_NUM_22 // SDA, SCL
#define BME_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
#define HAS_BME 1 // Enable BME sensors in general
#define HAS_BME680 GPIO_NUM_23, GPIO_NUM_22 // SDA, SCL
#define BME680_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
// user defined sensors
//#define HAS_SENSORS 1 // comment out if device has user defined sensors

5
src/hal/ttgobeam.h
View File

@ -31,8 +31,9 @@
// enable only if device has these sensors, otherwise comment these lines
// BME680 sensor on I2C bus
#define HAS_BME SDA, SCL
#define BME_ADDR BME680_I2C_ADDR_PRIMARY // !! connect SDIO of BME680 to GND !!
#define HAS_BME 1 // Enable BME sensors in general
#define HAS_BME680 SDA, SCL
#define BME680_ADDR BME680_I2C_ADDR_PRIMARY // !! connect SDIO of BME680 to GND !!
// display (if connected)
#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C

5
src/hal/ttgov21new.h
View File

@ -13,6 +13,11 @@
#define HAS_LORA 1 // comment out if device shall not send data via LoRa
#define CFG_sx1276_radio 1 // HPD13A LoRa SoC
// enable only if device has these sensors, otherwise comment these lines
// BME280 sensor on I2C bus
//#define HAS_BME 1 // Enable BME sensors in general
//#define HAS_BME280 GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
#define HAS_LED (25) // green on board LED
#define HAS_BATTERY_PROBE ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7

9
src/irqhandler.cpp
View File

@ -33,10 +33,13 @@ void irqHandler(void *pvParameters) {
if (InterruptStatus & CYCLIC_IRQ)
doHousekeeping();
#ifdef TIME_SYNC_INTERVAL
#if (TIME_SYNC_INTERVAL)
// is time to be synced?
if (InterruptStatus & TIMESYNC_IRQ)
setTime(timeProvider());
if (InterruptStatus & TIMESYNC_IRQ) {
time_t t = timeProvider();
if (timeIsValid(t))
setTime(t);
}
#endif
// is time to send the payload?

2
src/led.cpp
View File

@ -137,7 +137,7 @@ void ledLoop(void *parameter) {
// No custom blink, check LoRaWAN state
} else {
#ifdef HAS_LORA
#if(HAS_LORA)
// LED indicators for viusalizing LoRaWAN state
if (LMIC.opmode & (OP_JOINING | OP_REJOIN)) {
LEDColor = COLOR_YELLOW;

2
src/loraconf.sample.h
View File

@ -1,4 +1,4 @@
#ifdef HAS_LORA
#if(HAS_LORA)
/************************************************************
* LMIC LoRaWAN configuration

62
src/lorawan.cpp
View File

@ -1,10 +1,12 @@
// Basic Config
#if (HAS_LORA)
#include "lorawan.h"
#endif
// Local logging Tag
static const char TAG[] = "lora";
#ifdef HAS_LORA
#if (HAS_LORA)
#if CLOCK_ERROR_PROCENTAGE > 7
#warning CLOCK_ERROR_PROCENTAGE value in lmic_config.h is too high; values > 7 will cause side effects
@ -175,6 +177,8 @@ void showLoraKeys(void) {
void onEvent(ev_t ev) {
char buff[24] = "";
uint32_t now_micros = 0;
switch (ev) {
case EV_SCAN_TIMEOUT:
@ -225,24 +229,42 @@ void onEvent(ev_t ev) {
case EV_TXCOMPLETE:
#if(DBTIMESYNC)
if (!(LMIC.txrxFlags & TXRX_ACK) && time_sync_seqNo)
time_sync_messages[time_sync_seqNo - 1] = LMIC.txend;
#if (TIME_SYNC_TIMESERVER)
// if last packet sent was a timesync request, store TX timestamp
if (LMIC.pendTxPort == TIMEPORT) {
// store_time_sync_req(now(now_micros), now_micros);
// adjust sampled OS time back in time to the nearest second boundary
//const ostime_t tAdjust = LMIC.netDeviceTimeFrac * ms2osticks(1000) / 256;
//store_time_sync_req(osticks2ms(LMIC.txend - tAdjust)); // milliseconds
store_time_sync_req(osticks2ms(LMIC.txend)); // milliseconds
}
#endif
strcpy_P(buff, (LMIC.txrxFlags & TXRX_ACK) ? PSTR("RECEIVED_ACK")
: PSTR("TX_COMPLETE"));
sprintf(display_line6, " "); // clear previous lmic status
if (LMIC.dataLen) {
ESP_LOGI(TAG, "Received %d bytes of payload, RSSI -%d SNR %d",
if (LMIC.dataLen) { // did we receive data -> display info
ESP_LOGI(TAG, "Received %d bytes of payload, RSSI %d SNR %d",
LMIC.dataLen, LMIC.rssi, LMIC.snr / 4);
sprintf(display_line6, "RSSI -%d SNR %d", LMIC.rssi, LMIC.snr / 4);
sprintf(display_line6, "RSSI %d SNR %d", LMIC.rssi, LMIC.snr / 4);
// check if command is received on command port, then call interpreter
if ((LMIC.txrxFlags & TXRX_PORT) &&
(LMIC.frame[LMIC.dataBeg - 1] == RCMDPORT))
if (LMIC.txrxFlags & TXRX_PORT) { // FPort -> use to switch
switch (LMIC.frame[LMIC.dataBeg - 1]) {
#if (TIME_SYNC_TIMESERVER)
case TIMEPORT: // timesync answer -> call timesync processor
recv_timesync_ans(LMIC.frame + LMIC.dataBeg, LMIC.dataLen);
break;
#endif
case RCMDPORT: // opcode -> call rcommand interpreter
rcommand(LMIC.frame + LMIC.dataBeg, LMIC.dataLen);
break;
default: // unknown port -> display info
ESP_LOGI(TAG, "Received data on unsupported port #%d",
LMIC.frame[LMIC.dataBeg - 1]);
break;
}
}
}
break;
@ -385,15 +407,15 @@ esp_err_t lora_stack_init() {
// in src/lmic_config.h if you are limited on battery.
LMIC_setClockError(MAX_CLOCK_ERROR * CLOCK_ERROR_PROCENTAGE / 100);
// Set the data rate to Spreading Factor 7. This is the fastest supported
// rate for 125 kHz channels, and it minimizes air time and battery power. Set
// the transmission power to 14 dBi (25 mW).
// rate for 125 kHz channels, and it minimizes air time and battery power.
// Set the transmission power to 14 dBi (25 mW).
LMIC_setDrTxpow(DR_SF7, 14);
#if defined(CFG_US915) || defined(CFG_au921)
// in the US, with TTN, it saves join time if we start on subband 1 (channels
// 8-15). This will get overridden after the join by parameters from the
// network. If working with other networks or in other regions, this will need
// to be changed.
// in the US, with TTN, it saves join time if we start on subband 1
// (channels 8-15). This will get overridden after the join by parameters
// from the network. If working with other networks or in other regions,
// this will need to be changed.
LMIC_selectSubBand(1);
#endif
@ -417,12 +439,9 @@ void lora_enqueuedata(MessageBuffer_t *message, sendprio_t prio) {
ret = xQueueSendToBack(LoraSendQueue, (void *)message, (TickType_t)0);
break;
}
if (ret == pdTRUE) {
ESP_LOGI(TAG, "%d bytes enqueued for LORA interface", message->MessageSize);
} else {
if (ret != pdTRUE)
ESP_LOGW(TAG, "LORA sendqueue is full");
}
}
void lora_queuereset(void) { xQueueReset(LoraSendQueue); }
@ -457,8 +476,7 @@ void user_request_network_time_callback(void *pVoidUserUTCTime,
}
// Update userUTCTime, considering the difference between the GPS and UTC
// time, and the leap seconds
// !!! DANGER !!! This code will expire in next year with leap second
// time, and the leap seconds until year 2019
*pUserUTCTime = lmicTimeReference.tNetwork + 315964800;
// Current time, in ticks
ostime_t ticksNow = os_getTime();

32
src/main.cpp
View File

@ -47,8 +47,10 @@ Tasks using i2c bus all must have same priority, because using mutex semaphore
// ESP32 hardware timers
-------------------------------------------------------------------------------
0 displayIRQ -> display refresh -> 40ms (DISPLAYREFRESH_MS in
paxcounter.conf) 1 ppsIRQ -> pps clock irq -> 1sec 2 unused 3 unused
0 displayIRQ -> display refresh -> 40ms (DISPLAYREFRESH_MS in paxcounter.conf)
1 ppsIRQ -> pps clock irq -> 1sec
2 unused
3 unused
// Interrupt routines
@ -155,7 +157,7 @@ void setup() {
ESP.getFlashChipSpeed());
ESP_LOGI(TAG, "Wifi/BT software coexist version %s", esp_coex_version_get());
#ifdef HAS_LORA
#if(HAS_LORA)
ESP_LOGI(TAG, "IBM LMIC version %d.%d.%d", LMIC_VERSION_MAJOR,
LMIC_VERSION_MINOR, LMIC_VERSION_BUILD);
ESP_LOGI(TAG, "Arduino LMIC version %d.%d.%d.%d",
@ -167,7 +169,7 @@ void setup() {
showLoraKeys();
#endif // HAS_LORA
#ifdef HAS_GPS
#if(HAS_GPS)
ESP_LOGI(TAG, "TinyGPS+ version %s", TinyGPSPlus::libraryVersion());
#endif
@ -269,7 +271,7 @@ void setup() {
#endif // HAS_BUTTON
// initialize gps
#ifdef HAS_GPS
#if(HAS_GPS)
strcat_P(features, " GPS");
if (gps_init()) {
ESP_LOGI(TAG, "Starting GPS Feed...");
@ -284,13 +286,13 @@ void setup() {
#endif
// initialize sensors
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
strcat_P(features, " SENS");
sensor_init();
#endif
// initialize LoRa
#ifdef HAS_LORA
#if(HAS_LORA)
strcat_P(features, " LORA");
assert(lora_stack_init() == ESP_OK);
#endif
@ -358,9 +360,13 @@ void setup() {
&irqHandlerTask, // task handle
1); // CPU core
// initialize bme
#ifdef HAS_BME
strcat_P(features, " BME");
// initialize BME sensor (BME280/BME680)
#if (HAS_BME)
#ifdef HAS_BME680
strcat_P(features, " BME680");
#elif defined HAS_BME280
strcat_P(features, " BME280");
#endif
if (bme_init()) {
ESP_LOGI(TAG, "Starting BME sensor...");
xTaskCreatePinnedToCore(bme_loop, // task function
@ -400,7 +406,7 @@ void setup() {
#endif
#endif // HAS_BUTTON
#ifdef TIME_SYNC_INTERVAL
#if (TIME_SYNC_INTERVAL)
// start pps timepulse
ESP_LOGI(TAG, "Starting Timekeeper...");
assert(timepulse_init()); // setup timepulse
@ -410,7 +416,7 @@ void setup() {
#endif
#if defined HAS_IF482 || defined HAS_DCF77
#ifndef TIME_SYNC_INTERVAL
#if (!TIME_SYNC_INTERVAL)
#error for clock controller function TIME_SNYC_INTERVAL must be defined in paxcounter.conf
#endif
ESP_LOGI(TAG, "Starting Clock Controller...");
@ -421,7 +427,7 @@ void setup() {
void loop() {
while (1) {
#ifdef HAS_LORA
#if(HAS_LORA)
os_runloop_once(); // execute lmic scheduled jobs and events
#endif
delay(2); // yield to CPU

6
src/paxcounter.conf
View File

@ -66,9 +66,9 @@
#define RESPONSE_TIMEOUT_MS 60000 // firmware binary server connection timeout [milliseconds]
// settings for syncing time of node with external time source
#define TIME_SYNC_INTERVAL 2 // sync time attempt each .. minutes from time source (GPS/LORA/RTC) [default = 60], comment out means off
#define TIME_SYNC_LORA 0 // set to 1 to use LORA network as time source, 0 means off [default = off]
#define DBTIMESYNC 0 // set to 1 to use DB LORA timeserver with patented sync algorithm [default = off]
#define TIME_SYNC_INTERVAL 60 // sync time attempt each .. minutes from time source (GPS/LORA/RTC) [default = 60], 0 means off
#define TIME_SYNC_LORAWAN 0 // set to 1 to use LORA network as time source, 0 means off [default = 0]
#define TIME_SYNC_TIMESERVER 1 // set to 1 to use LORA timeserver as time source, 0 means off [default = 0]
// time zone, see https://github.com/JChristensen/Timezone/blob/master/examples/WorldClock/WorldClock.ino
#define DAYLIGHT_TIME {"CEST", Last, Sun, Mar, 2, 120} // Central European Summer Time

27
src/payload.cpp
View File

@ -18,6 +18,8 @@ uint8_t *PayloadConvert::getBuffer(void) { return buffer; }
#if PAYLOAD_ENCODER == 1
void PayloadConvert::addByte(uint8_t value) { buffer[cursor++] = (value); }
void PayloadConvert::addCount(uint16_t value, uint8_t snifftype) {
buffer[cursor++] = highByte(value);
buffer[cursor++] = lowByte(value);
@ -78,7 +80,7 @@ void PayloadConvert::addStatus(uint16_t voltage, uint64_t uptime, float cputemp,
}
void PayloadConvert::addGPS(gpsStatus_t value) {
#ifdef HAS_GPS
#if(HAS_GPS)
buffer[cursor++] = (byte)((value.latitude & 0xFF000000) >> 24);
buffer[cursor++] = (byte)((value.latitude & 0x00FF0000) >> 16);
buffer[cursor++] = (byte)((value.latitude & 0x0000FF00) >> 8);
@ -96,7 +98,7 @@ void PayloadConvert::addGPS(gpsStatus_t value) {
}
void PayloadConvert::addSensor(uint8_t buf[]) {
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
uint8_t length = buf[0];
memcpy(buffer, buf + 1, length);
cursor += length; // length of buffer
@ -104,7 +106,7 @@ void PayloadConvert::addSensor(uint8_t buf[]) {
}
void PayloadConvert::addBME(bmeStatus_t value) {
#ifdef HAS_BME
#if(HAS_BME)
int16_t temperature = (int16_t)(value.temperature); // float -> int
uint16_t humidity = (uint16_t)(value.humidity); // float -> int
uint16_t pressure = (uint16_t)(value.pressure); // float -> int
@ -141,6 +143,8 @@ void PayloadConvert::addTime(time_t value) {
#elif PAYLOAD_ENCODER == 2
void PayloadConvert::addByte(uint8_t value) { writeUint8(value); }
void PayloadConvert::addCount(uint16_t value, uint8_t snifftype) {
writeUint16(value);
}
@ -187,7 +191,7 @@ void PayloadConvert::addStatus(uint16_t voltage, uint64_t uptime, float cputemp,
}
void PayloadConvert::addGPS(gpsStatus_t value) {
#ifdef HAS_GPS
#if(HAS_GPS)
writeLatLng(value.latitude, value.longitude);
writeUint8(value.satellites);
writeUint16(value.hdop);
@ -196,7 +200,7 @@ void PayloadConvert::addGPS(gpsStatus_t value) {
}
void PayloadConvert::addSensor(uint8_t buf[]) {
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
uint8_t length = buf[0];
memcpy(buffer, buf + 1, length);
cursor += length; // length of buffer
@ -204,7 +208,7 @@ void PayloadConvert::addSensor(uint8_t buf[]) {
}
void PayloadConvert::addBME(bmeStatus_t value) {
#ifdef HAS_BME
#if(HAS_BME)
writeFloat(value.temperature);
writePressure(value.pressure);
writeUFloat(value.humidity);
@ -299,6 +303,11 @@ void PayloadConvert::writeBitmap(bool a, bool b, bool c, bool d, bool e, bool f,
#elif (PAYLOAD_ENCODER == 3 || PAYLOAD_ENCODER == 4)
void PayloadConvert::addByte(uint8_t value) {
/*
not implemented
*/ }
void PayloadConvert::addCount(uint16_t value, uint8_t snifftype) {
switch (snifftype) {
case MAC_SNIFF_WIFI:
@ -375,7 +384,7 @@ void PayloadConvert::addStatus(uint16_t voltage, uint64_t uptime, float celsius,
}
void PayloadConvert::addGPS(gpsStatus_t value) {
#ifdef HAS_GPS
#if(HAS_GPS)
int32_t lat = value.latitude / 100;
int32_t lon = value.longitude / 100;
int32_t alt = value.altitude * 100;
@ -396,7 +405,7 @@ void PayloadConvert::addGPS(gpsStatus_t value) {
}
void PayloadConvert::addSensor(uint8_t buf[]) {
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
// to come
/*
uint8_t length = buf[0];
@ -407,7 +416,7 @@ void PayloadConvert::addSensor(uint8_t buf[]) {
}
void PayloadConvert::addBME(bmeStatus_t value) {
#ifdef HAS_BME
#if(HAS_BME)
// data value conversions to meet cayenne data type definition
// 0.1°C per bit => -3276,7 .. +3276,7 °C

71
src/rcommand.cpp
View File

@ -8,7 +8,9 @@ static const char TAG[] = __FILE__;
// helper function
void do_reset() {
ESP_LOGI(TAG, "Remote command: restart device");
#if(HAS_LORA)
LMIC_shutdown();
#endif
delay(3000);
esp_restart();
}
@ -130,7 +132,7 @@ void set_gps(uint8_t val[]) {
}
void set_sensor(uint8_t val[]) {
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
switch (val[0]) { // check if valid sensor number 1...4
case 1:
case 2:
@ -168,7 +170,7 @@ void set_monitor(uint8_t val[]) {
}
void set_lorasf(uint8_t val[]) {
#ifdef HAS_LORA
#if(HAS_LORA)
ESP_LOGI(TAG, "Remote command: set LoRa SF to %d", val[0]);
switch_lora(val[0], cfg.txpower);
#else
@ -177,7 +179,7 @@ void set_lorasf(uint8_t val[]) {
}
void set_loraadr(uint8_t val[]) {
#ifdef HAS_LORA
#if(HAS_LORA)
ESP_LOGI(TAG, "Remote command: set LoRa ADR mode to %s",
val[0] ? "on" : "off");
cfg.adrmode = val[0] ? 1 : 0;
@ -220,7 +222,7 @@ void set_rgblum(uint8_t val[]) {
};
void set_lorapower(uint8_t val[]) {
#ifdef HAS_LORA
#if(HAS_LORA)
ESP_LOGI(TAG, "Remote command: set LoRa TXPOWER to %d", val[0]);
switch_lora(cfg.lorasf, val[0]);
#else
@ -250,7 +252,7 @@ void get_status(uint8_t val[]) {
void get_gps(uint8_t val[]) {
ESP_LOGI(TAG, "Remote command: get gps status");
#ifdef HAS_GPS
#if(HAS_GPS)
gps_read();
payload.reset();
payload.addGPS(gps_status);
@ -262,12 +264,12 @@ void get_gps(uint8_t val[]) {
void get_bme(uint8_t val[]) {
ESP_LOGI(TAG, "Remote command: get bme680 sensor data");
#ifdef HAS_BME
#if (HAS_BME)
payload.reset();
payload.addBME(bme_status);
SendPayload(BMEPORT, prio_high);
#else
ESP_LOGW(TAG, "BME680 sensor not supported");
ESP_LOGW(TAG, "BME sensor not supported");
#endif
};
@ -278,40 +280,35 @@ void get_time(uint8_t val[]) {
SendPayload(TIMEPORT, prio_high);
};
void set_time(uint8_t val[]) {
ESP_LOGI(TAG, "Timesync requested by timeserver");
timeSync();
};
void set_flush(uint8_t val[]) {
ESP_LOGI(TAG, "Remote command: flush");
// does nothing
// used to open receive window on LoRaWAN class a nodes
};
// assign previously defined functions to set of numeric remote commands
// format: opcode, function, #bytes params,
// flag (true = do make settings persistent / false = don't)
//
cmd_t table[] = {{0x01, set_rssi, 1, true},
{0x02, set_countmode, 1, true},
{0x03, set_gps, 1, true},
{0x04, set_display, 1, true},
{0x05, set_lorasf, 1, true},
{0x06, set_lorapower, 1, true},
{0x07, set_loraadr, 1, true},
{0x08, set_screensaver, 1, true},
{0x09, set_reset, 1, true},
{0x0a, set_sendcycle, 1, true},
{0x0b, set_wifichancycle, 1, true},
{0x0c, set_blescantime, 1, true},
{0x0d, set_vendorfilter, 1, false},
{0x0e, set_blescan, 1, true},
{0x0f, set_wifiant, 1, true},
{0x10, set_rgblum, 1, true},
{0x11, set_monitor, 1, true},
{0x12, set_beacon, 7, false},
{0x13, set_sensor, 2, true},
{0x80, get_config, 0, false},
{0x81, get_status, 0, false},
{0x84, get_gps, 0, false},
{0x85, get_bme, 0, false},
{0x86, get_time, 0, false}
#if(DBTIMESYNC)
,
{TIME_ANS_OPCODE, recv_DBtime_ans, 0, false},
{TIME_SYNC_OPCODE, force_DBtime_sync, 0, false}
#endif
};
cmd_t table[] = {
{0x01, set_rssi, 1, true}, {0x02, set_countmode, 1, true},
{0x03, set_gps, 1, true}, {0x04, set_display, 1, true},
{0x05, set_lorasf, 1, true}, {0x06, set_lorapower, 1, true},
{0x07, set_loraadr, 1, true}, {0x08, set_screensaver, 1, true},
{0x09, set_reset, 1, true}, {0x0a, set_sendcycle, 1, true},
{0x0b, set_wifichancycle, 1, true}, {0x0c, set_blescantime, 1, true},
{0x0d, set_vendorfilter, 1, false}, {0x0e, set_blescan, 1, true},
{0x0f, set_wifiant, 1, true}, {0x10, set_rgblum, 1, true},
{0x11, set_monitor, 1, true}, {0x12, set_beacon, 7, false},
{0x13, set_sensor, 2, true}, {0x80, get_config, 0, false},
{0x81, get_status, 0, false}, {0x84, get_gps, 0, false},
{0x85, get_bme, 0, false}, {0x86, get_time, 0, false},
{0x87, set_time, 0, false}, {0x99, set_flush, 0, false}};
const uint8_t cmdtablesize =
sizeof(table) / sizeof(table[0]); // number of commands in command table

12
src/senddata.cpp
View File

@ -39,7 +39,7 @@ void SendPayload(uint8_t port, sendprio_t prio) {
memcpy(SendBuffer.Message, payload.getBuffer(), payload.getSize());
// enqueue message in device's send queues
#ifdef HAS_LORA
#if(HAS_LORA)
lora_enqueuedata(&SendBuffer, prio);
#endif
#ifdef HAS_SPI
@ -63,7 +63,7 @@ void sendCounter() {
if (cfg.blescan)
payload.addCount(macs_ble, MAC_SNIFF_BLE);
#ifdef HAS_GPS
#if(HAS_GPS)
if (gps.location.isValid()) { // send GPS position only if we have a fix
gps_read();
payload.addGPS(gps_status);
@ -83,7 +83,7 @@ void sendCounter() {
}
break;
#ifdef HAS_BME
#if(HAS_BME)
case MEMS_DATA:
payload.reset();
payload.addBME(bme_status);
@ -91,7 +91,7 @@ void sendCounter() {
break;
#endif
#ifdef HAS_GPS
#if(HAS_GPS)
case GPS_DATA:
// send GPS position only if we have a fix
if (gps.location.isValid()) {
@ -104,7 +104,7 @@ void sendCounter() {
break;
#endif
#ifdef HAS_SENSORS
#if(HAS_SENSORS)
case SENSOR1_DATA:
payload.reset();
payload.addSensor(sensor_read(1));
@ -138,7 +138,7 @@ void sendCounter() {
} // sendCounter()
void flushQueues() {
#ifdef HAS_LORA
#if(HAS_LORA)
lora_queuereset();
#endif
#ifdef HAS_SPI

6
src/spislave.cpp
View File

@ -160,13 +160,9 @@ void spi_enqueuedata(MessageBuffer_t *message, sendprio_t prio) {
ret = xQueueSendToBack(SPISendQueue, (void *)message, (TickType_t)0);
break;
}
if (ret == pdTRUE) {
ESP_LOGI(TAG, "%d byte(s) enqueued for SPI interface",
message->MessageSize);
} else {
if (ret != pdTRUE)
ESP_LOGW(TAG, "SPI sendqueue is full");
}
}
void spi_queuereset(void) { xQueueReset(SPISendQueue); }

24
src/timekeeper.cpp
View File

@ -1,5 +1,13 @@
#include "timekeeper.h"
#ifndef HAS_LORA
#if (TIME_SYNC_TIMESERVER)
#error TIME_SYNC_TIMESERVER defined, but device has no LORA configured
#elif (TIME_SYNC_LORAWAN)
#error TIME_SYNC_LORAWAN defined, but device has no LORA configured
#endif
#endif
// Local logging tag
static const char TAG[] = __FILE__;
@ -14,7 +22,7 @@ time_t timeProvider(void) {
time_t t = 0;
#ifdef HAS_GPS
#if(HAS_GPS)
t = get_gpstime(); // fetch recent time from last NEMA record
if (t) {
#ifdef HAS_RTC
@ -35,11 +43,11 @@ time_t timeProvider(void) {
}
#endif
// kick off asychronous DB timesync if we have
#if(DBTIMESYNC)
send_DBtime_req();
// kick off asychronous lora sync if we have
#elif defined HAS_LORA && (TIME_SYNC_LORA)
// kick off asychronous Lora timeserver timesync if we have
#if (TIME_SYNC_TIMESERVER)
send_timesync_req();
// kick off asychronous lora network sync if we have
#elif (TIME_SYNC_LORAWAN)
LMIC_requestNetworkTime(user_request_network_time_callback, &userUTCTime);
#endif
@ -108,7 +116,7 @@ void timepulse_start(void) {
void IRAM_ATTR CLOCKIRQ(void) {
BaseType_t xHigherPriorityTaskWoken;
SyncToPPS(); // calibrates UTC systime, see Time.h
SyncToPPS(); // calibrates UTC systime, see microTime.h
xHigherPriorityTaskWoken = pdFALSE;
if (ClockTask != NULL)
@ -141,7 +149,7 @@ time_t compiledUTC(void) {
time_t tmConvert(uint16_t YYYY, uint8_t MM, uint8_t DD, uint8_t hh, uint8_t mm,
uint8_t ss) {
tmElements_t tm;
tm.Year = CalendarYrToTm(YYYY); // year offset from 1970 in time.h
tm.Year = CalendarYrToTm(YYYY); // year offset from 1970 in microTime.h
tm.Month = MM;
tm.Day = DD;
tm.Hour = hh;

189
src/timesync.cpp Normal file
View File

@ -0,0 +1,189 @@
/*
///--> IMPORTANT LICENSE NOTE for this file <--///
PLEASE NOTE: There is a patent filed for the time sync algorithm used in the
code of this file. The shown implementation example is covered by the
repository's licencse, but you may not be eligible to deploy the applied
algorithm in applications without granted license by the patent holder.
*/
#ifdef TIME_SYNC_TIMESERVER
#include "timesync.h"
using namespace std::chrono;
// Local logging tag
static const char TAG[] = __FILE__;
TaskHandle_t timeSyncReqTask;
static uint8_t time_sync_seqNo = 0;
static bool lora_time_sync_pending = false;
typedef std::chrono::system_clock myClock;
typedef myClock::time_point myClock_timepoint;
typedef std::chrono::duration<long long int, std::ratio<1, 1000>>
myClock_msecTick;
myClock_timepoint time_sync_tx[TIME_SYNC_SAMPLES];
myClock_timepoint time_sync_rx[TIME_SYNC_SAMPLES];
// send time request message
void send_timesync_req() {
// if a timesync handshake is pending then exit
if (lora_time_sync_pending) {
ESP_LOGI(TAG, "Timeserver sync request already pending");
return;
} else {
ESP_LOGI(TAG, "Timeserver sync request started");
lora_time_sync_pending = true;
// clear timestamp array
for (uint8_t i = 0; i < TIME_SYNC_SAMPLES; i++) {
time_sync_tx[i] = time_sync_rx[i] = myClock_timepoint(); // set to epoch
}
// kick off temporary task for timeserver handshake processing
if (!timeSyncReqTask)
xTaskCreatePinnedToCore(process_timesync_req, // task function
"timesync_req", // name of task
2048, // stack size of task
(void *)1, // task parameter
0, // priority of the task
&timeSyncReqTask, // task handle
1); // CPU core
}
}
// process timeserver timestamp answer, called from lorawan.cpp
int recv_timesync_ans(uint8_t buf[], uint8_t buf_len) {
// if no timesync handshake is pending or spurious buffer then exit
if ((!lora_time_sync_pending) || (buf_len != TIME_SYNC_FRAME_LENGTH))
return 0; // failure
uint8_t seq_no = buf[0], k = seq_no % TIME_SYNC_SAMPLES;
uint16_t timestamp_msec = 4 * buf[5]; // convert 1/250th sec fractions to ms
uint32_t timestamp_sec = 0, tmp_sec = 0;
for (uint8_t i = 1; i <= 4; i++) {
timestamp_sec = (tmp_sec <<= 8) |= buf[i];
}
if (timestamp_sec + timestamp_msec) // field validation: timestamp not 0 ?
time_sync_rx[k] += seconds(timestamp_sec) + milliseconds(timestamp_msec);
else
return 0; // failure
ESP_LOGD(TAG, "Timesync request #%d rcvd at %d", seq_no,
myClock::to_time_t(time_sync_rx[k]));
// inform processing task
if (timeSyncReqTask)
xTaskNotify(timeSyncReqTask, seq_no, eSetBits);
return 1; // success
}
// task for sending time sync requests
void process_timesync_req(void *taskparameter) {
uint8_t k = 0, i = 0;
uint32_t seq_no = 0;
// milliseconds time_offset(0);
auto time_offset = myClock_msecTick::zero();
int time_offset_msec;
time_t time_to_set;
// enqueue timestamp samples in lora sendqueue
for (uint8_t i = 0; i < TIME_SYNC_SAMPLES; i++) {
// wrap around seqNo 0 .. 254
time_sync_seqNo = (time_sync_seqNo >= 255) ? 0 : time_sync_seqNo + 1;
// send sync request to server
payload.reset();
payload.addByte(time_sync_seqNo);
SendPayload(TIMEPORT, prio_high);
// process answer
if ((xTaskNotifyWait(0x00, ULONG_MAX, &seq_no,
pdMS_TO_TICKS(TIME_SYNC_TIMEOUT * 1000)) == pdFALSE) ||
(seq_no != time_sync_seqNo)) {
ESP_LOGW(TAG, "Timeserver handshake failed");
goto finish;
} // no valid sequence received before timeout
else { // calculate time diff from collected timestamps
k = seq_no % TIME_SYNC_SAMPLES;
auto t_tx = time_point_cast<milliseconds>(
time_sync_tx[k]); // timepoint when node TX_completed
auto t_rx = time_point_cast<milliseconds>(
time_sync_rx[k]); // timepoint when message was seen on gateway
time_offset += t_rx - t_tx; // cumulate timepoint diffs
ESP_LOGD(TAG, "time_offset: %lldms", time_offset.count());
if (i < TIME_SYNC_SAMPLES - 1) // wait until next cycle
vTaskDelay(pdMS_TO_TICKS(TIME_SYNC_CYCLE * 1000));
}
} // for
// calculate time offset from collected diffs and set time if necessary
ESP_LOGD(TAG, "Avg time diff: %lldms", time_offset.count());
time_offset /= TIME_SYNC_SAMPLES;
// 1 sec floor round + 1sec wait for top of second
time_to_set = now() + 2 + time_offset.count() / 1000;
ESP_LOGD(TAG, "Calculated UTC epoch time: %d", time_to_set);
// adjust system time
if (timeIsValid(time_to_set)) {
if (abs(time_offset.count()) >=
TIME_SYNC_TRIGGER) { // milliseconds threshold
// wait until top of second
time_offset_msec = abs(time_offset.count()) % 1000;
ESP_LOGD(TAG, "waiting %dms", 1000 - time_offset_msec);
vTaskDelay(pdMS_TO_TICKS(1000 - time_offset_msec));
// sync timer pps to top of second
if (ppsIRQ)
timerRestart(ppsIRQ);
setTime(time_to_set);
timeSource = _lora;
timesyncer.attach(TIME_SYNC_INTERVAL * 60,
timeSync); // set to regular repeat
ESP_LOGI(TAG, "Timesync finished, time was adjusted");
} else
ESP_LOGI(TAG, "Timesync finished, time is up to date");
} else
ESP_LOGW(TAG, "Invalid time received from timeserver");
finish:
lora_time_sync_pending = false;
timeSyncReqTask = NULL;
vTaskDelete(NULL); // end task
}
// called from lorawan.cpp after time_sync_req was sent
void store_time_sync_req(time_t t_millisec) {
uint8_t k = time_sync_seqNo % TIME_SYNC_SAMPLES;
time_sync_tx[k] += milliseconds(t_millisec);
ESP_LOGD(TAG, "Timesync request #%d sent at %d", time_sync_seqNo,
myClock::to_time_t(time_sync_tx[k]));
}
#endif