This project features few corrections for original modbus TCP ENC28J60 in order for it to work with stm32 (stm32duino) blue pill
PIN Connections (Using STM32F103):
| ENC28J60 | STM32F103 |
|---|---|
| Q3 | 3.3V |
| SCK | PA5 |
| SO | PA6 |
| SI | PA7 |
| CS | PA8 |
| RST | 3.3V |
For reference see the page of original library. https://github.com/andresarmento/modbus-arduino