4PCS NRF24L01 2.4GHz Wireless Transceiver RF Transceiver Module With Keyestudio Packing Box for Arduino

This kit includes 4 pcs of NRF24L01 wireless module.
The NRF24L01 chip used in the module is a single-chip wireless transceiver chip operating in the 2.4~2.5GHz world-wide ISM band. The output power, channel selection and protocol settings can be set via the SPI interface.
The supply voltage for this NRF24L01 wireless module is DC 3.3 V. The maximum transmit power is 0 dBm. The maximum data transfer rate is 2000 kbps.
The current consumption in transmitting mode (0 dBm) is 11.3 mA.
The current consumption in receiving mode (2000 kbps) is 12.3 mA.
The sensitivity is -85 dBm when data transfer rate is at 1000 kbps in receiving mode.
The current consumption is 900 nA in power-down mode.
The module comes with a curved antenna, set as 0 dBm, the communication distance can reach about 20-25m in an open field.
The NRF24L01 wireless module is a transmission module. Each module is both a transmitter and a receiver. So in general, you need to use two NRF24L01 wireless modules and two Arduino control boards to make a test.