Arduino code repository for wireless thermometer
RX is indoor measures local and displays local and remote tp and humidity on a 16*4 LCD
TX is transmit only
use BME/BMP 280 sensors
Arduino pro mini (5v/16MHz)
RX & TX use nrf24L01 long range
Power supply is USB 5V
PCB from https://www.openhardware.io/view/4/EasyNewbie-PCB-for-MySensors