nRF24L01 Wireless Temperature Monitor with Bluetooth


In this tutorial, we will learn how to make Radio Frequency wireless communication using the nRF24L01+PA transceiver module that operates on 2.4 - 2.5 GHz (ISM band) with range 1000m distance. An arduino based wireless communication and interface DHT 11 temperature Monitor.


The transmitter circuit side consists of an Arduino Nano, nRF24L01+PA module and DHT11 Temperature sensor. Arduino gets data from the DHT11 sensor and sends it to the nRF24L01 Transmitter. Then the nRF transmitter circuit transmits the data into the air.


The receiver circuit side consists of an Arduino Nano, nRF24L01+PA module, 1602 LCD with I2C module and Bluetooth HC-05. The nRF module receives the data from the transmitter and sends it to Arduino. An arduino send data to Bluetooth.