Hello I have random failures on the ESP32 I program with Arduino IDE. The sketch only does a simple temperature and relay circuit via MQTT. I use a W5500 Ethernet Shield for the internet connection. At some point I get only cryptic characters via the Serial port, but only purely randomly. Only a pow...

Hello, I use an ESP32 with two RC522 RFID modules. And for the connection to my local network make use of the W5500 LAN module. These three modules use the SPI bus. But I can't use every three devices at the same time. The RFIDs alone is okay, also the network chip alone is okay. If I match it toget...