M5stack Basic core support (experimental)

README.md

@@ -33,12 +33,15 @@ This can all be done with a single small and cheap ESP32 board for less than $20
 *LoRa & SPI*:
 
 - Heltec: LoRa-32 v1 and v2
-- TTGO: T1*, T2*, T3*, T-Beam, T-Fox (* supports microSD-card)
+- TTGO: T1*, T2*, T3*, T-Beam, T-Fox
 - Pycom: LoPy, LoPy4, FiPy
 - Radioshuttle.de: [ECO Power Board](https://www.radioshuttle.de/esp32-eco-power/esp32-eco-power-board/)
 - WeMos: LoLin32 + [LoraNode32 shield](https://github.com/hallard/LoLin32-Lora),
 LoLin32lite + [LoraNode32-Lite shield](https://github.com/hallard/LoLin32-Lite-Lora)
 - Adafruit ESP32 Feather + LoRa Wing + OLED Wing, #IoT Octopus32 (Octopus + ESP32 Feather)
+- M5Stack: [Basic Core*](https://m5stack.com/collections/m5-core/products/basic-core-iot-development-kit) + [Lora Module RA-01H](https://m5stack.com/collections/m5-module/products/lora-module-868mhz)
+
+*) supports microSD-card
 
 *SPI only*:
 

platformio.ini

@@ -31,6 +31,7 @@ halfile = generic.h
 ;halfile = octopus32.h
 ;halfile = tinypico.h
 ;halfile = tinypicomatrix.h
+;halfile = m5stack.h
 
 [platformio]
 ; upload firmware to board with usb cable
@@ -43,10 +44,10 @@ description = Paxcounter is a device for metering passenger flows in realtime. I
 
 [common]
 ; for release_version use max. 10 chars total, use any decimal format like "a.b.c"
-release_version = 1.9.85
+release_version = 1.9.87
 ; 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 = 5
 extra_scripts = pre:build.py
 otakeyfile = ota.conf
 lorakeyfile = loraconf.h
@@ -94,6 +95,7 @@ build_flags_basic =
     '-DLOG_LOCAL_LEVEL=${common.debug_level}'
     '-DPROGVERSION="${common.release_version}"'
 build_flags_sensors =
+    ;BSEC Software Library
     -Llib/Bosch-BSEC/src/esp32/
     -lalgobsec
 build_flags_all =
@@ -122,5 +124,5 @@ upload_protocol = esptool
 [env:dev]
 upload_protocol = esptool
 build_type = debug
-platform = https://github.com/platformio/platform-espressif32.git#develop
+platform = https://github.com/platformio/platform-espressif32.git
 platform_packages = framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git

src/hal/m5stack.h

@@ -0,0 +1,62 @@
+// clang-format off
+// upload_speed 921600
+// board M5Stack-Core-ESP32
+
+// EXPERIMENTAL VERSION - NOT TESTED ON M5 HARDWARE YET
+
+#ifndef _M5STACK_H
+#define _M5STACK_H
+
+#include <stdint.h>
+
+#define HAS_LORA 1 // comment out if device shall not send data via LoRa or has no M5 RA01 LoRa module
+
+// Pins for LORA chip SPI interface, reset line and interrupt lines
+#define LORA_SCK  SCK
+#define LORA_CS   SS
+#define LORA_MISO MISO
+#define LORA_MOSI MOSI
+#define LORA_RST  GPIO_NUM_36
+#define LORA_IRQ  GPIO_NUM_26
+#define LORA_IO1  GPIO_NUM_34 // must be externally wired on PCB!
+#define LORA_IO2  LMIC_UNUSED_PIN
+
+
+// enable only if you want to store a local paxcount table on the device
+#define HAS_SDCARD  1      // this board has an SD-card-reader/writer
+// Pins for SD-card
+#define SDCARD_CS    GPIO_NUM_4
+#define SDCARD_MOSI  MOSI
+#define SDCARD_MISO  MISO
+#define SDCARD_SCLK  SCK
+
+// user defined sensors
+//#define HAS_SENSORS 1 // comment out if device has user defined sensors
+
+#define CFG_sx1276_radio 1 // select LoRa chip
+#define BOARD_HAS_PSRAM // use if board has external PSRAM
+#define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
+
+//#define HAS_DISPLAY 1
+//#define DISPLAY_FLIP  1 // use if display is rotated
+//#define BAT_MEASURE_ADC ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
+//#define BAT_VOLTAGE_DIVIDER 2 // voltage divider 100k/100k on board
+
+#define HAS_LED NOT_A_PIN // no on board LED (?)
+#define HAS_BUTTON (39) // on board button A
+
+// GPS settings
+#define HAS_GPS 1 // use on board GPS
+#define GPS_SERIAL 9600, SERIAL_8N1, RXD2, TXD2 // UBlox NEO 6M RX, TX
+#define GPS_INT GPIO_NUM_35 // 30ns accurary timepulse, to be external wired on pcb: shorten R12!
+
+// Pins for interface of LC Display
+#define MY_OLED_CS GPIO_NUM_14
+#define MY_OLED_DC GPIO_NUM_27
+#define MY_OLED_CLK GPIO_NUM_18
+#define MY_OLED_RST GPIO_NUM_33
+#define MY_OLED_BL GPIO_NUM_32
+#define MY_OLED_MOSI GPIO_NUM_23
+#define MY_OLED_MISO GPIO_NUM_23
+
+#endif