Freematics Forum

Normally the BLE USB dongle driver is automatically obtanied and installed by Windows (7 or later). If no luck, please download TI CC2540 software package and you will find cdc driver in C:\Texas Instruments\BLE-CC254x-1.4.0\Accessories\Drivers

Already added long ago.

Currently that switch only affects whether requests of PIDs are responded or not.

After upgrading, if the GUI is not connecting, please remove the power and plug in again. If still no luck, please try upgrading firmware again. Make sure don't upgrade the wrong firmware (J1850 and non-J1850).

The emulator is fine with input voltage below 16V.

Have you change the wire of GND to pin 1 of USBasp as shown in the new wiring diagram? It should really work. Arduino as ISP is slower.

As our USBasp vendor has changed, the wiring has been updated for the new batch.



If you experience problem with USBasp uploading, please change the GND wire (illustrated in purple color) as above.

As long as you can retrive your needed data (rpm throttle etc) with Arduino, you can push the data to the emulator with AT command.

How did you read data via BLE? What firmware configuration do you use?

On Arduino Uno, never use Serial.print as the OBD-II UART adapter uses serial for communication. Use of Serial.print will interrupt the communication.