SMRTR Science & EngineeringOct 4, 2024Hacker News

ESP8266 Analog Broadcast Television Interface

SMRTR summary

An ESP8266 microcontroller can broadcast analog TV signals on Channel 3 using its GPIO3/RX pin as an antenna. The project utilizes the I2S bus to output an 80 MHz signal, generating both luma and chroma components for NTSC television. Despite poor quality due to 1-bit output limitations, it displays various demo screens. A web interface allows users to control the broadcast and create custom color modulations. The project also includes a modification for PAL broadcasts.

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