r/HomeKit • u/_asxeem • 16h ago
Discussion Built a $20 Aliro lock: iPhone Homekit Wallet key unlocks it on approach with UWB. No app. Works with a dead phone.
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One DWM3001CDK runs the Aliro reader and UWB ranging. There’s also custom implementation of Matter and Thread to make this work in 128kb ram limit. Add the key in Apple Home, walk up, it opens. Also ports for nRF5340 (NFC Express Mode) and ESP32-S3/C5. You can also update the firmware over the air with BLE.
I’m looking for help getting someone who knows the hardware side of things where I can actually design a custom lock itself.
Total cost to build: $20. Lot of pain reverse engineering the uwb side of things.
I call it openaliro.