ESPHome-W5500-Ethernet-on-ESP32-boards
Playing around with the ESPHOME and W5500 ethernet module on different ESP32 boards. Goal is to be able to use SPI for ethernet and I²C for other sensors or ext
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Components
Hardware components
WIZnet - W5500
x 1
Espressif - ESP32
x 1
Project description
And even with this small sized board, there is some room for extra connections!
Possible improvements to investigate:
- CLK wire for the W5500 SPI bus is set to GPIO08
- GPIO08 is also the linked to the status led of the ESP32 C3 super mini development board
- possible or better to use GPIO02 instead?
- update 18.01.2024: switching CLK to GPIO02 did not seem to work...
At first, I only got it to work with the arduino framework:
esphome: name: esp32c3-super-mini friendly_name: esp32c3-super-mini esp32: board: esp32-c3-devkitm-1 framework: type: arduino # Enable logging logger: level: DEBUG # Enable Home Assistant API api: ota: ethernet: type: W5500 mosi_pin: GPIO10 miso_pin: GPIO09 clk_pin: GPIO08 cs_pin: GPIO5 reset_pin: GPIO04 interrupt_pin: GPIO03 clock_speed: 25MHz i2c: scl: GPIO07 sda: GPIO06 scan: True id: bus_a sensor: - platform: bmp280 temperature: name: "Temperature" unit_of_measurement: °C accuracy_decimals: 1 pressure: name: "Pressure" unit_of_measurement: hPa accuracy_decimals: 0 i2c_id: bus_a address: 0x76
After some iterations, it also works with the esp-idf framework; some tweaking of the platformio options was necessary:
esphome: name: esp32c3-super-mini-idf friendly_name: esp32c3-super-mini-idf platformio_options: board_build.flash_mode: dio board_build.mcu: esp32c3 board_build.f_cpu: 160000000L esp32: board: esp32-c3-devkitm-1 framework: type: esp-idf
So far, connection seems to be lightning fast and super stable.
In my experience, the easiest way of flashing the new ESP32C3 boards is by using the Adafruit ESPTool.
