Single chip radio transceiver for the world wide 2.4 - 2.5 GHz ISM band.Using these NRF24L01 modules, the radio transmission can be established between two Arduinos or other microcontrollers Easy connection of radio modules with the Arduino via the SPI Protocol ROHS compliance https://elecena.pl/product/17485383/nrf24l01-2-4-ghz 2021-03-29 https://elecena.pl/product/17485383/nrf24l01-2-4-ghz 2022-06-24