DigitalInfinity/ESP32-PaxCounter
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bsecstate load/save implemented; bugfix packed_decoder.js

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This commit is contained in:
Klaus K Wilting 2018-12-31 11:26:05 +01:00
parent 184e1e7d84
commit f26b7a545c
10 changed files with 90 additions and 16 deletions
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3
include/bme680mems.h
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@ -47,8 +47,11 @@ const uint8_t bsec_config_iaq[454] = {
255, 255, 255, 255, 255, 255, 255, 255, 255, 44, 1, 0, 0, 0, 0,
239, 79, 0, 0};
// Helper functions declarations
int bme_init();
void bme_loop(void *pvParameters);
int checkIaqSensorStatus(void);
void loadState(void);
void updateState(void);
#endif

4
include/cyclic.h
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@ -7,6 +7,10 @@
#include "spislave.h"
#include <lmic.h>
#ifdef HAS_BME
#include "bme680mems.h"
#endif
void doHousekeeping(void);
void do_timesync(void);
uint64_t uptime(void);

1
include/globals.h
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@ -54,6 +54,7 @@ typedef struct {
uint8_t runmode; // 0=normal, 1=update
uint8_t payloadmask; // bitswitches for payload data
char version[10]; // Firmware version
char bsecstate[BSEC_MAX_STATE_BLOB_SIZE+1]; // init BSEC state for BME680 sensor
} configData_t;
// Struct holding payload for data send queue

8
platformio.ini
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@ -6,7 +6,7 @@
; ---> SELECT TARGET PLATFORM HERE! <---
[platformio]
;env_default = generic
env_default = generic
;env_default = ebox
;env_default = eboxtube
;env_default = heltec
@ -16,7 +16,7 @@
;env_default = ttgov21old
;env_default = ttgov21new
;env_default = ttgobeam_old
env_default = ttgobeam_new
;env_default = ttgobeam_new
;env_default = lopy
;env_default = lopy4
;env_default = fipy
@ -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 = 1.7.03
release_version = 1.7.06
; 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 = 0
; UPLOAD MODE: select esptool to flash via USB/UART, select custom to upload to cloud for OTA
upload_protocol = esptool
;upload_protocol = custom

6
src/TTN/packed_decoder.js
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@ -18,7 +18,11 @@ function Decoder(bytes, port) {
if (bytes.length === 4) {
return decode(bytes, [uint16, uint16], ['wifi', 'ble']);
}
// combined counter and gps data
// combined wifi counter and gps data
if (bytes.length === 15) {
return decode(bytes, [uint16, latLng, latLng, uint8, hdop, uint16], ['wifi', 'latitude', 'longitude', 'sats', 'hdop', 'altitude']);
}
// combined wifi + ble counter and gps data
if (bytes.length === 17) {
return decode(bytes, [uint16, uint16, latLng, latLng, uint8, hdop, uint16], ['wifi', 'ble', 'latitude', 'longitude', 'sats', 'hdop', 'altitude']);
}

46
src/bme680mems.cpp
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@ -23,6 +23,9 @@ bsec_virtual_sensor_t sensorList[10] = {
BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
};
uint8_t bsecState[BSEC_MAX_STATE_BLOB_SIZE] = {0};
uint16_t stateUpdateCounter = 0;
// initialize BME680 sensor
int bme_init(void) {
@ -46,6 +49,8 @@ int bme_init(void) {
return 1;
}
loadState();
iaqSensor.setTemperatureOffset((float)BME_TEMP_OFFSET);
iaqSensor.updateSubscription(sensorList, 10, BSEC_SAMPLE_RATE_LP);
@ -99,7 +104,6 @@ void bme_loop(void *pvParameters) {
// block i2c bus access
if (xSemaphoreTake(I2Caccess, (DISPLAYREFRESH_MS / portTICK_PERIOD_MS)) ==
pdTRUE) {
if (iaqSensor.run()) { // If new data is available
bme_status.raw_temperature = iaqSensor.rawTemperature;
bme_status.raw_humidity = iaqSensor.rawHumidity;
@ -111,7 +115,6 @@ void bme_loop(void *pvParameters) {
bme_status.iaq_accuracy = iaqSensor.iaqAccuracy;
bme_status.gas = iaqSensor.gasResistance;
}
xSemaphoreGive(I2Caccess); // release i2c bus access
}
}
@ -121,4 +124,43 @@ void bme_loop(void *pvParameters) {
} // bme_loop()
void loadState(void) {
if (cfg.bsecstate[BSEC_MAX_STATE_BLOB_SIZE + 1] == BSEC_MAX_STATE_BLOB_SIZE) {
// Existing state in NVS stored
ESP_LOGI(TAG, "restoring BSEC state from NVRAM");
memcpy(bsecState, cfg.bsecstate, BSEC_MAX_STATE_BLOB_SIZE);
iaqSensor.setState(bsecState);
checkIaqSensorStatus();
} else // no state stored
ESP_LOGI(TAG,
"no BSEC state stored in NVRAM, starting sensor with defaults");
}
void updateState(void) {
bool update = false;
if (stateUpdateCounter == 0) {
/* First state update when IAQ accuracy is >= 1 */
if (iaqSensor.iaqAccuracy >= 3) {
update = true;
stateUpdateCounter++;
}
} else {
/* Update every STATE_SAVE_PERIOD minutes */
if ((stateUpdateCounter * STATE_SAVE_PERIOD) < millis()) {
update = true;
stateUpdateCounter++;
}
}
if (update) {
memcpy(bsecState, cfg.bsecstate, BSEC_MAX_STATE_BLOB_SIZE);
cfg.bsecstate[BSEC_MAX_STATE_BLOB_SIZE + 1] = BSEC_MAX_STATE_BLOB_SIZE;
iaqSensor.getState(bsecState);
checkIaqSensorStatus();
ESP_LOGI(TAG, "saving BSEC state to NVRAM");
saveConfig();
}
}
#endif // HAS_BME

19
src/configmanager.cpp
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@ -32,6 +32,8 @@ void defaultConfig() {
cfg.monitormode = 0; // 0=disabled, 1=enabled
cfg.runmode = 0; // 0=normal, 1=update
cfg.payloadmask = 0xFF; // all payload switched on
cfg.bsecstate[BSEC_MAX_STATE_BLOB_SIZE + 1] = {
0}; // init BSEC state for BME680 sensor
strncpy(cfg.version, PROGVERSION, sizeof(cfg.version) - 1);
}
@ -78,6 +80,12 @@ void saveConfig() {
int16_t flash16 = 0;
size_t required_size;
char storedversion[10];
char bsecstate[BSEC_MAX_STATE_BLOB_SIZE + 1];
if (nvs_get_str(my_handle, "bsecstate", bsecstate, &required_size) !=
ESP_OK ||
strcmp(bsecstate, cfg.bsecstate) != 0)
nvs_set_str(my_handle, "bsecstate", cfg.bsecstate);
if (nvs_get_str(my_handle, "version", storedversion, &required_size) !=
ESP_OK ||
@ -202,7 +210,16 @@ void loadConfig() {
migrateVersion();
}
// overwrite defaults with valid values from NVRAM
// populate pre set defaults with current values from NVRAM
char bsecstate[BSEC_MAX_STATE_BLOB_SIZE + 1];
if (nvs_get_str(my_handle, "bsecstate", NULL, &required_size) == ESP_OK) {
nvs_get_str(my_handle, "bsecstate", cfg.bsecstate, &required_size);
ESP_LOGI(TAG, "bsecstate = %d",
cfg.bsecstate[BSEC_MAX_STATE_BLOB_SIZE + 1]);
}
if (nvs_get_i8(my_handle, "lorasf", &flash8) == ESP_OK) {
cfg.lorasf = flash8;
ESP_LOGI(TAG, "lorasf = %d", flash8);

1
src/cyclic.cpp
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@ -58,6 +58,7 @@ void doHousekeeping() {
// display BME sensor data if present
#ifdef HAS_BME
ESP_LOGI(TAG, "BME680 Temp: %.2f°C | IAQ: %.2f", bme_status.temperature, bme_status.iaq);
updateState();
#endif
// check free heap memory

12
src/hal/ttgobeam_new.h
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@ -11,18 +11,18 @@
// 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 GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
//#define BME_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND
#define HAS_LED GPIO_NUM_14 // on board green LED
// user defined sensors
//#define HAS_SENSORS 1 // comment out if device has user defined sensors
#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
#define MY_OLED_SDA (21)
#define MY_OLED_SCL (22)
#define MY_OLED_RST U8X8_PIN_NONE
//#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
//#define MY_OLED_SDA (21)
//#define MY_OLED_SCL (22)
//#define MY_OLED_RST U8X8_PIN_NONE
//#define DISPLAY_FLIP 1 // use if display is rotated
#define HAS_LORA 1 // comment out if device shall not send data via LoRa

2
src/paxcounter.conf
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@ -72,6 +72,8 @@
// Settings for BME680 environmental sensor (if present)
#define BME_TEMP_OFFSET 5.0f // Offset sensor on chip temp <-> ambient temp [default = 5°C]
#define BSEC_MAX_STATE_BLOB_SIZE 134 // size of Bosch BME680 state data blob
#define STATE_SAVE_PERIOD UINT32_C(360 * 60 * 1000) // update every 360 minutes = 4 times a day
// OTA settings
#define USE_OTA 1 // Comment out to disable OTA update