This module uses the 2.4GHz transceiver nRF24L01 with extra pipes, buffers and auto-retransmit functions. It does not require any wireless design, just an 8-pin interface, and you can use the SPI interface to control the module to transmit data. https://elecena.pl/product/6057315/nrf24l01-module 2016-05-07 https://elecena.pl/product/6057315/nrf24l01-module 2025-12-18