GitHub - pouriap/TinyRF: A small Arduino library for using 315MHz / 433MHz RF modules with ATtiny13 and other low-memory microcontrollers.
REES52 ® RF434 RF Module 434-Mhz - RF Transmitter Receiver Module Kit - 1 Transmitter and 1 Receiver Compatible with Arduino Uno : Amazon.in: Industrial & Scientific
1set Superheterodyne 433mhz Rf Transmitter And Receiver Module Kit Small Size For Arduino Uno Diy Kits 433 Mhz Remote Controls - Remote Control - AliExpress