Revert "Add LilyGo T-Can485 board support"

This reverts commit b1a20b6.

Author: BorisBrock

README.md

@@ -21,24 +21,14 @@ HeidelBridge is a firmware for ESP32 microcontrollers. It allows you to bring yo
 
 # Required Hardware
 
-You have two options for the hardware setup:
-
-## Option 1: ESP32 + External MAX485 Module
-You need two components: an ESP32 microcontroller and a MAX485 module. Both are available in large quantities and at reasonable prices on the Internet. You will also need a breadboard and a few jumper wires. All in all, it shouldn't cost you more than 10€.
+You only need two components for this project: an ESP32 microcontroller and a MAX485 module. Both are available in large quantities and at reasonable prices on the Internet. You will also need a breadboard and a few jumper wires. All in all, it shouldn't cost you more than 10€.
 
 Parts list:
 - ESP32 microcontroller*
 - MAX485 breakout board
 - 6 jumper wires
 - A breadboard
 
-## Option 2: LilyGo T-Can485 Board
-Alternatively, you can use a LilyGo T-Can485 board which has the RS485 transceiver already built-in, eliminating the need for an external MAX485 module.
-
-Parts list:
-- LilyGo T-Can485 board (includes ESP32 + built-in RS485 transceiver)
-- 3 jumper wires (for connecting to the wallbox)
-
 This should be enough for quickly putting together a fully functioning prototype.
 Of course a well designed PCB would be much nicer, but this is still work in progress. Once the design is ready, the schematics will be available *right here*.
 

docs/SoftwareSetup.md

@@ -51,55 +51,8 @@ Then follow these steps:
 
 - Start by cloning or downloading this repository.
 - Optional: change `board = ...` in platformio.ini to match the ESP32 board you are actually using.
-- Choose the appropriate build environment (see [Build Environments](#build-environments) below).
 - Compile the project.
 - Build the file system image via the PlatformIO command palette.
 - Now connect your ESP32 via USB.
 - Upload the file system image.
 - Upload the firmware.
-
-## Build Environments
-
-HeidelBridge supports multiple build environments to accommodate different hardware configurations:
-
-### Standard ESP32 + External RS485 Module (`heidelberg`)
-This is the default build environment for regular ESP32 development boards with an external RS485 module.
-
-**To compile:**
-```bash
-pio run -e heidelberg
-```
-
-**Pin configuration:**
-- GPIO18 → RS485 RO (Receiver Output)
-- GPIO19 → RS485 DI (Driver Input)  
-- GPIO21 → RS485 DE+RE
-
-### LilyGo T-Can485 Board (`lilygo`)
-This build environment is specifically designed for the LilyGo T-Can485 board, which has built-in RS485 capabilities and **does not require an external MAX485 module**.
-
-**To compile:**
-```bash
-pio run -e lilygo
-```
-
-**Pin configuration:**
-- GPIO21 → RS485 RO (Receiver Output)
-- GPIO22 → RS485 DI (Driver Input)
-- GPIO21 → RS485 DE+RE
-
-**Additional features:**
-- Automatic initialization of onboard RS485 transceivers
-- 5V power supply control
-- CAN bus support (hardware available but not used in current firmware)
-- **No external MAX485 module needed** - RS485 transceiver is built into the board
-
-For detailed wiring information and hardware setup for the LilyGo T-Can485 board, please refer to the [discussion thread](https://github.com/BorisBrock/HeidelBridge/discussions/4).
-
-### Dummy Wallbox (`dummy`)
-This build environment creates a simulation mode for testing without actual wallbox hardware.
-
-**To compile:**
-```bash
-pio run -e dummy
-```

platformio.ini

@@ -12,10 +12,10 @@
 default_envs = heidelberg
 
 [env]
-platform = espressif32
-board = esp32dev
+platform = espressif32@^6.8.1
+board = esp32doit-devkit-v1
 upload_protocol = esptool
-upload_port = COM4
+upload_port = /dev/ttyUSB*
 framework = arduino
 board_build.partitions = partitions.csv
 monitor_speed = 115200
@@ -40,10 +40,4 @@ build_flags =
 build_flags = 
   -O2
   -D DUMMY_WALLBOX
-  -D LOGGING_LEVEL_DEBUG
-
-[env:lilygo]
-build_flags = 
-  -O2
-  -D LILYGO_BOARD
-  -D LOGGING_LEVEL_ERROR
+  -D LOGGING_LEVEL_DEBUG

src/Components/Modbus/ModbusRTU.cpp

@@ -25,20 +25,6 @@ void ModbusRTU::Init()
     gMutex = xSemaphoreCreateMutex();
 
     // Init serial conneted to the RTU Modbus
-
-#ifdef LILYGO_BOARD
-    //config for Lilygo ESP32 RS485 board
-    pinMode(RS485_EN_PIN, OUTPUT);
-    digitalWrite(RS485_EN_PIN, HIGH);
-
-    pinMode(RS485_SE_PIN, OUTPUT);
-    digitalWrite(RS485_SE_PIN, HIGH);
-
-    pinMode(PIN_5V_EN, OUTPUT);
-    digitalWrite(PIN_5V_EN, HIGH);
-    // end config for Lilygo ESP32 RS485 board
-#endif
-
     Logger::Info("Starting RS485 hardware serial");
     RTUutils::prepareHardwareSerial(gRs485Serial);
     gRs485Serial.begin(

src/Configuration/Pins.h

@@ -2,43 +2,11 @@
 
 namespace Pins
 {
-#ifdef LILYGO_BOARD
-    // Config for the Lilygo T-Can485 Board
-    // Pin connections:
-    // ESP32 GPIO21 -> MAXRS485 RO (Receiver Output)
-    // ESP32 GPIO22 -> MAXRS485 DI (Driver Input)
-    // ESP32 GPIO21 -> MAXRS485 DE+RE
-    constexpr uint8_t PinRX = GPIO_NUM_21;
-    constexpr uint8_t PinTX = GPIO_NUM_22;
-    constexpr uint8_t PinRTS = GPIO_NUM_21;
-#else
-    // Config for regular ESP32 boards + external RS485 module
     // Pin connections:
     // ESP32 GPIO18 -> MAXRS485 RO (Receiver Output)
     // ESP32 GPIO19 -> MAXRS485 DI (Driver Input)
     // ESP32 GPIO21 -> MAXRS485 DE+RE
     constexpr uint8_t PinRX = GPIO_NUM_18;
     constexpr uint8_t PinTX = GPIO_NUM_19;
     constexpr uint8_t PinRTS = GPIO_NUM_21;
-#endif
-};
-
-#ifdef LILYGO_BOARD
-#define PIN_5V_EN 16
-
-#define CAN_TX_PIN 26
-#define CAN_RX_PIN 27
-#define CAN_SE_PIN 23
-
-#define RS485_EN_PIN 17 // 17 /RE
-#define RS485_TX_PIN 22 // 21
-#define RS485_RX_PIN 21 // 22
-#define RS485_SE_PIN 19 // 22 /SHDN
-
-#define SD_MISO_PIN 2
-#define SD_MOSI_PIN 15
-#define SD_SCLK_PIN 14
-#define SD_CS_PIN 13
-
-#define WS2812_PIN 4
-#endif
+};