Decoding and Sending 433MHz RF Codes With Arduino and Rc-switch : 9 Steps (with Pictures) - Instructables
New Arduino library for 433 MHz AM radio modules
RF Receiver very limited range and/or spotty performance - General Electronics - Arduino Forum
Using the 433MHz RF Transmitter and Receiver with Arduino - Electronics-Lab.com
Qiachip 433 Mhz Superheterodyne Rf Receiver And Transmitter Module For Arduino Uno Wireless Module Diy Kit 433mhz Remote Control - Remote Control - AliExpress
How 433MHz RF Module Works & Interfacing with Arduino