Merge pull request #25 from cyberman54/test

v1.2.9: pull request #21 + some minor fixes

README.md

@@ -177,7 +177,7 @@ Note: all settings are stored in NVRAM and will be reloaded when device starts.
 
 0x80 get device configuration
 
-	device answers with it's current configuration:
+device answers with it's current configuration. The configuration is a C structure declared in file [globals.h](src/globals.h#L23-L38) with the following definition:
 
 	byte 1:			Lora SF (7..12)
 	byte 2:			Lora TXpower (2..15)
@@ -203,6 +203,17 @@ Note: all settings are stored in NVRAM and will be reloaded when device starts.
 
 	bytes 1-3:		chip temperature in celsius (little endian format)
 
+# RGB Led color description
+
+Description of the RGB LED color (Lopy and Lolin32 only):
+
+- Yellow quick blink
+    - LoRaWAN join
+- Blue blink
+    - LoRaWAN transmit (including receive windows)
+- Magenta each blink
+    - BLE Scan, seen a device (new or not)
+
 # License
 
 Copyright  2018 Oliver Brandmueller <ob@sysadm.in>

platformio.ini

@@ -10,10 +10,10 @@
 
 ; ---> SELECT TARGET PLATFORM HERE! <---
 [platformio]
-;env_default = heltec_wifi_lora_32
+env_default = heltec_wifi_lora_32
 ;env_default = ttgov1
 ;env_default = ttgov2
-env_default = lopy
+;env_default = lopy
 ;env_default = lopy4
 ;env_default = lolin32lite_lora
 ;env_default = lolin32_lora

src/globals.h

@@ -13,9 +13,11 @@
 #include <lmic.h>
 #include <hal/hal.h>
 
+// LED controls
 #ifdef HAS_RGB_LED
     #include <SmartLeds.h>
 #endif
+
 #include "rgb_led.h"
 #include "macsniff.h"
 

src/hal/lolin32_lora.h

@@ -31,3 +31,7 @@
 #define OLED_RST U8X8_PIN_NONE  // Not reset pin
 #define OLED_SDA 21             // ESP32 GPIO21 (Pin21) -- OLED SDA
 #define OLED_SCL 22             // ESP32 GPIO22 (Pin22) -- OLED SCL
+
+// I2C config for Microchip 24AA02E64 DEVEUI unique address
+#define MCP_24AA02E64_I2C_ADDRESS 0x50 // I2C address for the 24AA02E64 
+#define MCP_24AA02E64_MAC_ADDRESS 0xF8 // Memory adress of unique deveui 64 bits

src/hal/lolin32lite_lora.h

@@ -30,3 +30,7 @@
 #define OLED_RST U8X8_PIN_NONE  // Not reset pin
 #define OLED_SDA 14             // ESP32 GPIO14 (Pin14) -- OLED SDA
 #define OLED_SCL 12             // ESP32 GPIO12 (Pin12) -- OLED SCL
+
+// I2C config for Microchip 24AA02E64 DEVEUI unique address
+#define MCP_24AA02E64_I2C_ADDRESS 0x50 // I2C address for the 24AA02E64 
+#define MCP_24AA02E64_MAC_ADDRESS 0xF8 // Memory adress of unique deveui 64 bits

src/macsniff.cpp

@@ -85,11 +85,14 @@ class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
     void onResult(BLEAdvertisedDevice advertisedDevice) {
         uint8_t *p = (uint8_t *) advertisedDevice.getAddress().getNative();
 
+        rgb_set_color(COLOR_MAGENTA);
         // Current devices seen on this scan session
         currentScanDevice++;
         mac_add(p, advertisedDevice.getRSSI(), MAC_SNIFF_BLE);
         u8x8.setCursor(12,3);
         u8x8.printf("%d", currentScanDevice);
+        rgb_set_color(COLOR_NONE);
+
     }
 };
 

src/main.cpp

@@ -29,7 +29,7 @@ Refer to LICENSE.txt file in repository for more details.
 #include <set>
 
 // OLED driver
-#include <U8x8lib.h>
+#include <U8x8lib.h> // includes <wire.h> if needed for other on board i2c components
 
 // LMIC-Arduino LoRaWAN Stack
 #include "loraconf.h"
@@ -259,7 +259,6 @@ void wifi_sniffer_loop(void * pvParameters) {
         channel = (channel % WIFI_CHANNEL_MAX) + 1;     // rotates variable channel 1..WIFI_CHANNEL_MAX
         wifi_sniffer_set_channel(channel);
         ESP_LOGI(TAG, "Wifi set channel %d", channel);
-        
         u8x8.setCursor(0,5);
         u8x8.printf(!cfg.rssilimit ? "RLIM:  off" : "RLIM: %4i", cfg.rssilimit);
         u8x8.setCursor(11,5);
@@ -289,7 +288,8 @@ void wifi_sniffer_loop(void * pvParameters) {
             // wait until payload is sent, while wifi scanning and mac counting task continues
             lorawait = 0;
             while(LMIC.opmode & OP_TXRXPEND) {
-                if(!lorawait) u8x8.drawString(0,6,"LoRa wait       ");
+                if(!lorawait) 
+                    u8x8.drawString(0,6,"LoRa wait       ");
                 lorawait++;
                 // in case sending really fails: reset and rejoin network
                 if( (lorawait % MAXLORARETRY ) == 0) {
@@ -304,10 +304,11 @@ void wifi_sniffer_loop(void * pvParameters) {
 
             if (cfg.screenon && cfg.screensaver) {
                 vTaskDelay(2000/portTICK_PERIOD_MS);   // pause for displaying results
-            }
                 yield();
                 u8x8.setPowerSave(1 && cfg.screensaver); // set display off if screensaver is enabled
+            }          
         } // end of send data cycle
+        
         else {
             #ifdef BLECOUNTER
                 if (nloop % (WIFI_CHANNEL_MAX * cfg.blescancycle) == 0 )   // once after cfg.blescancycle Wifi scans, do a BLE scan
@@ -345,6 +346,8 @@ void init_display(const char *Productname, const char *Version) {
     u8x8.begin();
     u8x8.setFont(u8x8_font_chroma48medium8_r);
 #ifdef HAS_DISPLAY  
+    u8x8.begin();
+    u8x8.setFont(u8x8_font_chroma48medium8_r);
     uint8_t buf[32];
     u8x8.clear();
     u8x8.setFlipMode(0);
@@ -394,7 +397,7 @@ void setup() {
 
     // disable brownout detection
 #ifdef DISABLE_BROWNOUT
-  // Register with brownout is at address DR_REG_RTCCNTL_BASE + 0xd4
+    // register with brownout is at address DR_REG_RTCCNTL_BASE + 0xd4
   (*((volatile uint32_t *)ETS_UNCACHED_ADDR((DR_REG_RTCCNTL_BASE+0xd4)))) = 0;
 #endif
 
@@ -411,10 +414,10 @@ void setup() {
     ESP_LOGI(TAG, "Starting %s %s", PROGNAME, PROGVERSION);
     rgb_set_color(COLOR_NONE);
                 
-    // system event handler for wifi task, needed for wifi_sniffer_init()
+    // initialize system event handler for wifi task, needed for wifi_sniffer_init()
     esp_event_loop_init(NULL, NULL);
 
-    // Print chip information on startup
+    // print chip information on startup if in verbose mode
 #ifdef VERBOSE
     esp_chip_info_t chip_info;
     esp_chip_info(&chip_info);
@@ -427,16 +430,16 @@ void setup() {
     ESP_LOGI(TAG, "ESP32 SDK: %s", ESP.getSdkVersion());
 #endif
 
-    // Read settings from NVRAM
+    // read settings from NVRAM
     loadConfig(); // includes initialize if necessary
 
-    // initialize hardware
+    // initialize led if needed
 #ifdef HAS_LED
-    // initialize LED
     pinMode(HAS_LED, OUTPUT);
     digitalWrite(HAS_LED, LOW);
 #endif
 
+    // initialize button handling if needed
 #ifdef HAS_BUTTON
     #ifdef BUTTON_PULLUP
         // install button interrupt (pullup mode)
@@ -449,13 +452,34 @@ void setup() {
     #endif
 #endif
 
-    // initialize wifi antenna
+    // initialize wifi antenna if needed
 #ifdef HAS_ANTENNA_SWITCH
     antenna_init();
 #endif
 
-    // initialize salt value using esp_random() called by random() in arduino-esp32 core
+    // read DEVEUI from Microchip 24AA02E64 2Kb serial eeprom if present
-    salt = random(65536); // get new 16bit random for salting hashes
+#ifdef MCP_24AA02E64_I2C_ADDRESS
+    uint8_t i2c_ret;
+    // Init this before OLED, we just need to get value then we're done with i2c bus
+    Wire.begin(OLED_SDA, OLED_SDA, 100000);
+    Wire.beginTransmission(MCP_24AA02E64_I2C_ADDRESS);
+    Wire.write(MCP_24AA02E64_MAC_ADDRESS); 
+    i2c_ret = Wire.endTransmission();
+    // check if device seen on i2c bus
+    if (i2c_ret == 0) {
+        char deveui[24];
+        uint8_t data;
+        Wire.beginTransmission(MCP_24AA02E64_I2C_ADDRESS);
+        while (Wire.available()) {
+            data = Wire.read();
+            sprintf(deveui+strlen(deveui), "%02X ", data) ;
+        }
+        i2c_ret = Wire.endTransmission();
+        ESP_LOGI(TAG, "Serial EEPROM 24AA02E64 found, read DEVEUI %s", deveui);
+    } else {
+        ESP_LOGI(TAG, "Serial EEPROM 24AA02E64 not found ret=%d", i2c_ret);
+    }
+#endif // MCP 24AA02E64
 
 // initialize display  
     init_display(PROGNAME, PROGVERSION);     
@@ -467,12 +491,16 @@ void setup() {
 // output LoRaWAN keys to console
 #ifdef VERBOSE
     printKeys();
-#endif // VERBOSE
+#endif
 
 os_init(); // setup LMIC
 os_setCallback(&initjob, lora_init); // setup initial job & join network 
 wifi_sniffer_init(); // setup wifi in monitor mode and start MAC counting
 
+// initialize salt value using esp_random() called by random() in arduino-esp32 core
+// note: do this *after* wifi has started, since gets it's seed from RF noise
+salt = random(65536); // get new 16bit random for salting hashes
+ 
 // Start FreeRTOS tasks
 #if CONFIG_FREERTOS_UNICORE // run all tasks on core 0 and switch off core 1
     ESP_LOGI(TAG, "Starting Lora task on core 0");
@@ -487,7 +515,7 @@ void setup() {
     xTaskCreatePinnedToCore(wifi_sniffer_loop, "wifisniffer", 4096, ( void * ) 1, 1, NULL, 0);
 #endif
     
-    // Kickoff first sendjob, use payload "0000"
+// Finally: kickoff first sendjob and join, then send initial payload "0000"
 uint8_t mydata[] = "0000";
 do_send(&sendjob);
 }

src/main.h

@@ -1,5 +1,5 @@
 // program version - note: increment version after modifications to configData_t struct!!
-#define PROGVERSION                     "1.2.88"    // use max 10 chars here!
+#define PROGVERSION                     "1.2.9"    // use max 10 chars here!
 #define PROGNAME                        "PAXCNT"
 
 // Verbose enables serial output
@@ -10,7 +10,7 @@
 #define BLECOUNTER                      1       // comment out if you don't want BLE count
 
 // BLE scan time
-#define BLESCANTIME                     15      // [seconds]
+#define BLESCANTIME                     10      // [seconds]
 #define BLESCANCYCLE                    2       // BLE scan once after each <BLECYCLE> wifi scans
 
 // WiFi Sniffer cycle interval