Tag: esp32

A phone app that talks to the dashboard panel rather than the car, and the fault codes a battery disconnect wrote into eight modules.

The first bytes the adapter ever sent me, and the discovery that the car ignores UDS and answers an older Volkswagen transport instead.

Two days getting an ESP32 to talk to an OBD-II adapter over Bluetooth Low Energy. Everything negotiated correctly and not one byte arrived.

Rusty Nail can download carts from a pop-up launcher. The WiFi reason-15 failure was my own off-by-one, and a GPIO pin really did die on the bench.

I picked an ESP32-C6 for the controller bridge and learned that BLE-only is a property of the silicon, so the fix was a different chip and one build flag.