I am having nodemcu Unit by AMICA. I have TX and Rx line connected to Sensor which work on UART. I have used software serial library to communicate with UART device. Similar kind of issue also i found with arduino uno
once device starts and if i connect TX & RX line after nodemcu/uno started device will communicate with UART device properly. When power wentoff or reset switch being pressed. If device is connected to RX And Tx line device wont read any data from UART sensors.If i remove connection and connect TX & Rx line again.The device starts working normally how can i avoid this issue. Else my application on nodemcu/UNo working well.