Uploaded December 2025 | Updated September 2026, 1 week ago
Lots of electronic devices comes with remote controls - often designed as small keyfobs, these generally broadcast commands encoded as radio signals, broadcast on either 315MHz or 433MHz radio frequency.
In this video, I'll explain how you can use a cheap RF receiver with an Arduino, ESP32, or other microcontroller to receive and learn the commands sent from these remote controls, identify and separate the control signal from the noise in the raw signal, and copy the encoding protocol used to perfectly clone the original.
You can then re-broadcast that signal to add automation or "smart" control to any dumb device, such as triggering them via a network message or sensor. Perfect for smart homes or escape rooms!
I'm using the RF433Any library from github.com/sebmillet/RF433any
More details about all of the projects featured on this channel can be found at Patreon: patreon.com/c/playfultech
And you can join the discussion on the Discord: discord.gg/jhSJfF7D
Timings
00:00:00 - 00:00:57 Introduction and Demonstration
00:00:58 - 00:02:59 Why clone RF signals?
00:03:00 - 00:05:25 Capturing RF codes
00:05:26 00:07:05 Filtering noise
00:07:06 - 00:10:22 Retransmitting commands
00:10:23 - 00:12:46 Wrapup
Lots of electronic devices comes with remote controls - often designed as small keyfobs, these generally broadcast commands encoded as radio signals, broadcast on either 315MHz or 433MHz radio frequency.
In this video, I'll explain how you can use a cheap RF receiver with an Arduino, ESP32, or other microcontroller to receive and learn the commands sent from these remote controls, identify and separate the control signal from the noise in the raw signal, and copy the encoding protocol used to perfectly clone the original.
You can then re-broadcast that signal to add automation or "smart" control to any dumb device, such as triggering them via a network message or sensor. Perfect for smart homes or escape rooms!
I'm using the RF433Any library from github.com/sebmillet/RF433any
More details about all of the projects featured on this channel can be found at Patreon: patreon.com/c/playfultech
And you can join the discussion on the Discord: discord.gg/jhSJfF7D
Timings
00:00:00 - 00:00:57 Introduction and Demonstration
00:00:58 - 00:02:59 Why clone RF signals?
00:03:00 - 00:05:25 Capturing RF codes
00:05:26 00:07:05 Filtering noise
00:07:06 - 00:10:22 Retransmitting commands
00:10:23 - 00:12:46 Wrapup
