App for ESC's based on the VESC to see realtime data and change modes. You need a HM-10 Bluetooth low energy module. Connect it to via UART with the ESC. 5V or 3. 3 V - VCC. GND - GND. RX - TX. TX - RX. Activate UART by PPM+UART as application. Set the UART Baud Rate to 9600.