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Building a USB display from a salvaged smartwatch LCD
Hardware
Aug 03, 2026/ 24 min read

Building a USB display from a salvaged smartwatch LCD

2 Mbps of UART proved software USB was pointless. Then came an RP2040, a DMA rewrite, and a colour bug I could not see.

RP2040ST7735USBTLSR8232
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Turning a ₹249 Smartwatch Into a DIY AirTag Tracker
Hardware
Aug 01, 2026/ 24 min read

Turning a ₹249 Smartwatch Into a DIY AirTag Tracker

I lost my wallet on a night bus, so I turned a hacked ₹249 smartwatch into an Apple FindMy tracker and built my own app to follow it.

FindMyAirTagTLSR8232BLE
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Hacking a ₹249 Smartwatch: Custom Firmware on TLSR8232
Hardware
Jul 29, 2026/ 31 min read

Hacking a ₹249 Smartwatch: Custom Firmware on TLSR8232

A bike navigation idea led me to reverse engineer a ₹249 smartwatch, crack its SWire debug port, and flash my own firmware on it.

Reverse EngineeringTLSR8232SmartWatchBLE
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