Raspberry Pi Broadcasts UHF Channels to CRT TVs

It’s not quite the same as running your own TV station and broadcasting episodes of Conan the Librarian to everyone in town, but this Raspberry Pi project is the next best thing. If you’ve got an old CRT TV lying around, you could be transmitting video to it over UHF using Redditor Devicemodder2’s CRT TV project. It’s built with a Raspberry Pi Zero and enables compatible CRT TVs within range to tune in to a predetermined channel for wireless video streaming.

The system relies on a Micro UHF Analog TV transmitter chip that’s available on Ali Express for $15. This transmitter is connected to the composite video output on the back of the Pi Zero. 

Raspberry Pi UHF Broadcasting

(Image credit: devicemodder2 on Reddit)

In the image above, the yellow wire is signal, the orange is 5V power and the blue is ground. If you haven’t used a Pi Zero for composite video output before, check out this article from MagPi, the official Raspberry Pi magazine, for a detailed look at how it works on Raspberry Pi Zero. 

Image 1 of 2

Raspberry Pi

(Image credit: Devicemodder2)
Image 2 of 2

Raspberry Pi

(Image credit: Devicemodder2)