Arduino UNO SPE Shield adds Single Pair Ethernet (SPE) and RS485 to Arduino UNO and compatible boards, notably the Arduino UNO R4, via a Microchip LAN8651 SPE controller. Single Pair Ethernet relies ...

Open Arduino IDE or use esptool.py to upload a simple sketch with Serial.begin(115200). After upload, the board disconnects and reconnects repeatedly (USB sound loop). No COM port is detected in ...

The library cannot currently be used with hardware based on the ENC28J60 chip – such as the Nanode or the Nuelectronics Ethernet Shield. For those, there is an alternative library available.