Retrofitting an old radioclock

Adding a parasitic ESP32-based bridge to provide sensor data for Homeassistant through Esphome

Helger

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Tivoli Model three_orig.pdf Manual for the radio clock, not sure if it's the exact same version. Adobe Portable Document Format - 396.00 kB - 02/03/2026 at 15:15		Preview

ESP32-WROOM32-dev_CBAA0032-039_UK.pdf The datasheet for the ESP32 dev-board, as provided by the supplier. Adobe Portable Document Format - 0 bytes - 02/03/2026 at 14:38		Preview

Trouble reconnecting internals
Helger • 03/13/2026 at 11:22 • 0 comments

I made the mistake of spreading my work on this project over a long long period. After making some advancements with initial modifications to the internals (swapping led colours) and starting to figure out the audio chain and internal workings of the alarm, I can't seem to get the radio to work properly again. Might have accidently fried it.
This project is on hold for the moment but might be revisited in the future. The scope of the project is likely to shift toward complete retrofitting, mostly replacing the internal circuits with my own.