Wireless module operating voltage is generally 3.3v, while the ordinary 51 microcontroller 5v, this module is easy toshop wireless module with 51 single system board used in conjunction.
This module can be any one of 51 shop is directly connected to the system board, easy to use.
It’s for 8 Pin NRF24L01+ Module
This is a simple socket board which is for NRF24L01 Wireless module
on-board AMS1117-3.3 chip