nRF24L01 2.4GHz Wireless Communication Module

The nRF24L01 is a low-cost and highly popular wireless communication (RF) module operating in the 2.4GHz ISM frequency band. It provides reliable data transmission indoors or over short distances (up to about 100 meters outdoors) with its own zigzag antenna integrated on the PCB. It communicates quickly with microcontrollers via SPI protocol. Although the supply voltage is 3.3V, the data pins are 5V tolerant, so it can be connected without the need for a level converter. It is frequently preferred in smart home systems, remote-controlled toys and short-distance sensor networks.