how to make wireless walkie talkie using arduino at home - YouTube
makeRF: Teardown of 1980's era Wakie Talkies and Transistor Radio
The post explains the construction of a simple walkie talkie transmitter receiver circuit whi… | Diagrama de circuito, Capacitor eletrolítico, Amplificador de áudio
Creating a Walkie-Talkie with generic 433MHz RF Modules?! - YouTube