From e9407830a4af3b8712fe8dacc20ff390e5a39984 Mon Sep 17 00:00:00 2001 From: Andrew Yong Date: Tue, 18 Jun 2024 22:07:32 +0800 Subject: [PATCH] Add support for Heltec HRU-3601 Board is very similar to the Heltec HT-C62 based boards (Heltec HT62 variant) but due to wiring of SK6812 Neopixel LED to GPIO2 it becomes incompatible due to the regular HT-C62 dev board using a simple LED on the same GPIO. Depends on [protobufs#521](https://github.com/meshtastic/protobufs/pull/521). Works: * SK6812 Neopixel on GPIO2 * [GXCAS GXHTV3](https://www.lcsc.com/product-detail/Temperature-Sensors_GXCAS-GXHTV3C_C5441730.html) (SHTC3 compatible) Won't fix: * Battery reading - Board has no voltage divider on VBAT (board has a 1.25mm pitch "JST" style connector and a TP4054 charge IC) * Main thread LED - Board has no LED on simple GPIO Board schematic: [HRU3601.pdf](https://github.com/user-attachments/files/15874850/HRU3601.pdf) Signed-off-by: Andrew Yong --- src/platform/esp32/architecture.h | 2 ++ variants/heltec_hru_3601/pins_arduino.h | 25 ++++++++++++++++ variants/heltec_hru_3601/platformio.ini | 9 ++++++ variants/heltec_hru_3601/variant.h | 40 +++++++++++++++++++++++++ 4 files changed, 76 insertions(+) create mode 100644 variants/heltec_hru_3601/pins_arduino.h create mode 100644 variants/heltec_hru_3601/platformio.ini create mode 100644 variants/heltec_hru_3601/variant.h diff --git a/src/platform/esp32/architecture.h b/src/platform/esp32/architecture.h index c979d016cb..5565b64686 100644 --- a/src/platform/esp32/architecture.h +++ b/src/platform/esp32/architecture.h @@ -101,6 +101,8 @@ #define HW_VENDOR meshtastic_HardwareModel_STATION_G1 #elif defined(DR_DEV) #define HW_VENDOR meshtastic_HardwareModel_DR_DEV +#elif defined(HELTEC_HRU_3601) +#define HW_VENDOR meshtastic_HardwareModel_HELTEC_HRU_3601 #elif defined(HELTEC_V3) #define HW_VENDOR meshtastic_HardwareModel_HELTEC_V3 #elif defined(HELTEC_WSL_V3) diff --git a/variants/heltec_hru_3601/pins_arduino.h b/variants/heltec_hru_3601/pins_arduino.h new file mode 100644 index 0000000000..625c57cedb --- /dev/null +++ b/variants/heltec_hru_3601/pins_arduino.h @@ -0,0 +1,25 @@ +#ifndef Pins_Arduino_h +#define Pins_Arduino_h + +#include +#include + +static const uint8_t TX = UART_TX; +static const uint8_t RX = UART_RX; + +static const uint8_t SDA = I2C_SDA; +static const uint8_t SCL = I2C_SCL; + +static const uint8_t SS = 8; +static const uint8_t MOSI = 7; +static const uint8_t MISO = 6; +static const uint8_t SCK = 10; + +static const uint8_t A0 = 0; +static const uint8_t A1 = 1; +static const uint8_t A2 = 2; +static const uint8_t A3 = 3; +static const uint8_t A4 = 4; +static const uint8_t A5 = 5; + +#endif /* Pins_Arduino_h */ diff --git a/variants/heltec_hru_3601/platformio.ini b/variants/heltec_hru_3601/platformio.ini new file mode 100644 index 0000000000..3668e72b7b --- /dev/null +++ b/variants/heltec_hru_3601/platformio.ini @@ -0,0 +1,9 @@ +[env:heltec-hru-3601] +extends = esp32c3_base +board = adafruit_qtpy_esp32c3 +build_flags = + ${esp32_base.build_flags} + -D HELTEC_HRU_3601 + -I variants/heltec_hru_3601 +lib_deps = ${esp32c3_base.lib_deps} + adafruit/Adafruit NeoPixel @ ^1.12.0 diff --git a/variants/heltec_hru_3601/variant.h b/variants/heltec_hru_3601/variant.h new file mode 100644 index 0000000000..31783ec359 --- /dev/null +++ b/variants/heltec_hru_3601/variant.h @@ -0,0 +1,40 @@ +#define BUTTON_PIN 9 + +#define HAS_SCREEN 0 +#define HAS_GPS 0 +#undef GPS_RX_PIN +#undef GPS_TX_PIN + +#define USE_SX1262 +#define LORA_SCK 10 +#define LORA_MISO 6 +#define LORA_MOSI 7 +#define LORA_CS 8 +#define LORA_DIO0 RADIOLIB_NC +#define LORA_RESET 5 +#define LORA_DIO1 3 +#define LORA_DIO2 RADIOLIB_NC +#define LORA_BUSY 4 +#define SX126X_CS LORA_CS +#define SX126X_DIO1 LORA_DIO1 +#define SX126X_BUSY LORA_BUSY +#define SX126X_RESET LORA_RESET +#define SX126X_DIO2_AS_RF_SWITCH +#define SX126X_DIO3_TCXO_VOLTAGE 1.8 + +// Vext_Ctrl pin controls 3.3V LDO (U2) which provides power to I2C peripheral +#define PIN_POWER_EN 1 + +// Board has I2C connected to UART0 pins, and no other hardware serial port +#define UART_TX -1 +#define UART_RX -1 + +// Board has I2C connected to U0RXD and U0TXD +#define I2C_SDA 21 +#define I2C_SCL 20 + +// Board has RGB LED on GPIO2 +#define HAS_NEOPIXEL // Enable the use of neopixels +#define NEOPIXEL_COUNT 1 // How many neopixels are connected +#define NEOPIXEL_DATA 2 // gpio pin used to send data to the neopixels +#define NEOPIXEL_TYPE (NEO_GRB + NEO_KHZ800) // type of neopixels in use