development branch created

README.md

@@ -23,6 +23,7 @@ Currently supported IoT boards:
 - TTGOv2
 - Pycom LoPy
 - Pycom LoPy4
+- LoLin32 with [LoraNode32 shield](https://github.com/hallard/LoLin32-Lora)
 
 Target platform must be selected in [platformio.ini](https://github.com/cyberman54/ESP32-Paxcounter/blob/master/platformio.ini).<br>
 Hardware dependent settings (pinout etc.) are stored in board files in /hal directory.<br>
@@ -37,6 +38,7 @@ Hardware dependent settings (pinout etc.) are stored in board files in /hal dire
 - TTGOv2 ~670mW
 - LoPy with expansion board: ~530mW
 - LoPy pure, without expansion board: ~460mW
+- LoLin32 with [LoraNode32 shield](https://github.com/hallard/LoLin32-Lora): TBD
 
 These results where metered with software version 1.2.0 during active wifi scan, no LoRa TX’ing, OLED display off, 5V USB powered.
 

platformio.ini

@@ -15,6 +15,7 @@ env_default = heltec_wifi_lora_32
 ;env_default = ttgov2
 ;env_default = lopy
 ;env_default = lopy4
+;env_default = lolin32_lora
 
 [env:heltec_wifi_lora_32]
 platform = espressif32
@@ -124,3 +125,27 @@ build_flags =
     -include "src/hal/lopy4.h"
 ;FreeRTOS single core operation, switches off core 1 (see arduino-esp32/cores/esp32/main.cpp)
 ;   -DCONFIG_FREERTOS_UNICORE
+
+[env:lolin32_lora]
+platform = espressif32
+board = lolin32
+framework = arduino
+monitor_baud = 115200
+upload_speed = 921600
+lib_deps = 
+    U8g2
+    ESP32 BLE Arduino@>=0.4.9
+build_flags = 
+;set log level, we need build_flag for this, otherwise we can't use ESP_LOGx in arduino framework
+    -DCORE_DEBUG_LEVEL=ARDUHAL_LOG_LEVEL_VERBOSE
+;    -DCORE_DEBUG_LEVEL=ARDUHAL_LOG_LEVEL_NONE
+;needed for ESP32 BLE Ardunio v0.4.9
+    -fexceptions
+    -std=c++11
+;override lora settings from LMiC library in lmic/config.h and use main.h instead
+    -D_lmic_config_h_
+    -include "src/main.h"
+    -include "src/hal/lolin32_lora.h"
+;FreeRTOS single core operation, switches off core 1 (see arduino-esp32/cores/esp32/main.cpp)
+;   -DCONFIG_FREERTOS_UNICORE
+

src/hal/lolin32_lora.h

@@ -0,0 +1,32 @@
+// Hardware related definitions for lolin32 loraNode32 shield
+// See https://github.com/hallard/LoLin32-Lora
+
+// disable brownout detection (avoid unexpected reset on some boards)
+#define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
+
+#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
+#define HAS_LED NOT_A_PIN // Led os on same pin than Lora SS pin, to avoid pb, we don't use it
+                          // Anyway shield is on over the LoLin32 board, so we won't be able to see this LED
+#define HAS_RGB_LED   13  // ESP32 GPIO13 (pin13) On Board Shield WS2812B RGB LED
+#define HAS_BUTTON    15  // ESP32 GPIO15 (pin15) Button is on the LoraNode32 shield
+#define BUTTON_PULLUP  1  // Button need pullup instead of default pulldown
+
+#define CFG_sx1276_radio 1 // RFM95 module
+
+// re-define pin definitions of pins_arduino.h
+#define PIN_SPI_SS     5 // ESP32  GPIO5 (Pin5)  -- SX1276 NSS  (Pin19) SPI Chip Select Input
+#define PIN_SPI_MOSI  23 // ESP32 GPIO23 (Pin23) -- SX1276 MOSI (Pin18) SPI Data Input
+#define PIN_SPI_MISO  19 // ESP32 GPIO19 (Pin19) -- SX1276 MISO (Pin17) SPI Data Output
+#define PIN_SPI_SCK   18 // ESP32 GPIO18 (Pin18  -- SX1276 SCK  (Pin16) SPI Clock Input
+
+// non arduino pin definitions
+#define RST   25 // ESP32 GPIO25 (Pin25) -- SX1276 NRESET (Pin7)  Reset Trigger Input
+#define DIO0  27 // ESP32 GPIO27 (Pin27) -- SX1276 DIO0   (Pin8)  used by LMIC for detecting LoRa RX_Done & TX_Done
+#define DIO1  26 // ESP32 GPIO26 (Pin26) -- SX1276 DIO1   (Pin9)  used by LMIC for detecting LoRa RX_Timeout
+#define DIO2   4 // ESP32  GPIO4 (Pin4)  -- SX1276 DIO2   (Pin10) not used by LMIC for LoRa (Timeout for FSK only)
+
+// Hardware pin definitions for LoRaNode32 Board with OLED I2C Display
+#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
+

src/main.cpp

@@ -323,6 +323,12 @@ void init_display(const char *Productname, const char *Version) {
 
 void setup() {
 
+  // disable brownout detection
+#ifdef DISABLE_BROWNOUT
+  // Register with brownout is at address DR_REG_RTCCNTL_BASE + 0xd4
+  (*((volatile uint32_t *)ETS_UNCACHED_ADDR((DR_REG_RTCCNTL_BASE+0xd4)))) = 0;
+#endif
+
     // setup debug output or silence device
 #ifdef VERBOSE
     Serial.begin(115200);
@@ -361,10 +367,16 @@ void setup() {
     digitalWrite(HAS_LED, LOW);
 #endif
 
-    // install button interrupt
 #ifdef HAS_BUTTON
+    #ifdef BUTTON_PULLUP
+        // install button interrupt (pullup mode)
+        pinMode(HAS_BUTTON, INPUT_PULLUP);
+        attachInterrupt(digitalPinToInterrupt(HAS_BUTTON), isr_button_pressed, RISING); 
+    #else
+        // install button interrupt (pulldown mode)
         pinMode(HAS_BUTTON, INPUT_PULLDOWN);
         attachInterrupt(digitalPinToInterrupt(HAS_BUTTON), isr_button_pressed, FALLING); 
+    #endif
 #endif
 
     // initialize wifi antenna