Presented below is a simple and cheap 433-Mz RF Sniffer ideal for testing/reverse-engineering most 433-MHz wireless devices. As you can see, the setup is on the Arduino ground with a 433-MHz receiver ...

using a few off-the-shelf parts [hesam.moshiri] shows us how to take advantage of this piece of spectrum by designing and building a programmable and versatile 4-channel 433 MHz remote control.

Pulling the master unit apart, I find nothing more than an ordinary printed circuit board ... engineer the same remote control design with another PIC12F629/PIC12F675 microcontroller. Next is the ...

We frequently get home automation tips, many of which have simple circuit-based ... pieced together the remote control feature with an RF link kit with an inexpensive 433mhz Code duplicator ...