We’ve seen loads of sport console initiatives right here, a lot of them that search to provide a miniature sport console. However this one from [RayTriangle] might break a brand new barrier completely — it suits a whole TV sport console that performs DOOM, together with the battery, right into a TV antenna plug.
There’s a kind of antenna plug with screw terminals, initially supposed for matching 300 ohm balanced feeder to 75 ohm co-ax. It offers a tiny undertaking field should you have a look at it that method, and it’s in right here that the console sits. It’s an ESP32-S3 that talks to a controller by way of Bluetooth, and he’s gone into some element on how the RF for the TV is made. Some intelligent tips equivalent to a look-up desk for the part shifted chroma waveforms for every colour enable the creation of a great high quality composite sign by means of a resistor-ladder DAC, and that is modulated in a surprisingly old style method onto a service offered by the ESP’s clock generator.
The end result as could be seen within the video beneath is a bit noisy, however we expect that is likely to be fixable with a bit of filter magic. It’s designed for PAL TVs with a VHF tuner, however we’re guessing some ingenuity might be introduced into play to make it occur for UHF or NTSC. The {hardware} in the meantime is placed on two boards both aspect of the battery, with a versatile PCB becoming a member of the 2.
It’s true that gaming although an analogue RF enter to a TV might be much less widespread in 2026, however we applaud the ingenuity in getting this into such a small house. For some cause it reminds us of the world’s smallest MIDI synthesizer.
