INSTALL
Install firmware
Connect the ESP32 CYD to a computer with a data-capable USB cable and use the firmware installer. Depending on the chosen method, existing flash data may be erased.
Open installer →QUICK STARTReady to drive
Ready to drive
in 4 steps
Follow these steps from firmware installation to the first vehicle connection.
CONNECT
Connect ELM327 to OBD-II
Use an adapter reporting v1.5 or v2.1—the versions currently tested. Plug it into the vehicle and turn the ignition ON or start the engine.
PAIR
Select the Bluetooth device
Open SET → scan for OBD2 → select the adapter. The system connects immediately and remembers it for the next startup.
DRIVE
Wait for vehicle detection
On the first connection the system detects supported PIDs, then opens the dashboard where you can customize tiles.
BEFORE YOU DRIVETips for a
Tips for a
stable connection
Use a quality ELM327
Some inexpensive adapters respond slowly, disconnect often, or report a version that does not match their hardware.
Wait for the ECU
In ACC, some vehicles expose only voltage. Engine PIDs may become available only with ignition ON or the engine running.
Do not configure while driving
Configure tiles, Wi-Fi, firmware, and code clearing only while safely parked.