Electric Speed Controller DualDrive V4 HighCurrent Underwater Surfboard ESC DC860V Item Type: Electric Speed ControllerMaterial: Anti-vibration silicon pad + anode alumina Model: Dual Drive V4 Advanced Features: 1. Double ESCs can get 100A high current, providing powerful power for your circuit board 2. A PCBA board integrates the functions of two FSESC4.20 through the internal CAN BUS circuit connection. 3. Mother board and slave board connection can be opened/closed 4. Exquisite Detail Design Can Provide Guarantee: Anti-vibration silicon pad is added for screw heat sink and thermal pad 5. The connection for Bluetooth module and RF module reserved for the main board and slave board Ultra-small Size And Lightweight Heat Sink: L x W x H: Approx. 79 x 65 x 19mm / 3.1 x 2.6 x 0.7in Weight: Approx. 150 g / 5.3 oz Hardware: V4.20 Firmware: Latest version Current: 50A continuous/single, 100A continuous/double, instantaneous current 150A per single, instantaneous total system current 300A. ERPM: 60000 BEC: 5V at 1.5A BEC Type: Internal driver support Mode: DC, BLDC, FOC (sine waving) Time: Software calibration Frequency: PWM input Governor: No Programming Card: No Reverse: Yes Motor Wire: 12AWG Power Cord: 12AWG Function Details: 1. STM32F4 32-bit ARM microcontroller. 2. DRV8302 MOSFET driver/buck converter/current parallel amplifier. 3.12 NTMFS5C628NL MOSFETs. 4. Regenerative braking. 5. Also supports DC motors. 6. With or without sensor operation. 7. Adaptive PWM frequency to obtain the best possible ADC measurement value. 8. It has good starting torsion in both sensor and sensorless modes. 9. Duty cycle control, speed control or current control. 10. Through the I2C port for wireless WII nunchuk (Nyko Kama) control. This is very convenient for electric skateboards. 12. The USB port uses a modem profiles, so for Android devices can be connected to the ESC without rooting. Thanks to the servo output, odometer and additional ADC input (which can be used for sensors), this is good for modifying RC cars to be controlled for Android (or for Raspberry Pi). 13. Sensored and sensorless (FOC) field-oriented control enables your electric skateboards to run almost without any motor noise, and automatically detects motor parameters since FW3.34. 14. Many safety functions, such as current control and temperature control functions. 15. The electric motor is used as a tachometer, which is very suitable for the odometer on modified RC cars. 16. Adjustable Protective Measures: High motor current High input current High regenerative braking current (individual limit of the motor) And input) Fast duty cycle change (ramp) High RPM (individual limit for each direction). 17. When the current limit is triggered, use the soft compensation strategy while the motor keeps running. If the current is too high, the motor will shut down completely. 18. RPM restriction also has a soft back-off strategy. 19. Even if the speed of the motor changes, the commutation can work normally. This is due to the fact that the magnetic flux is integrated after the 0 crossing, rather than adding a delay based on the previous speed. 20. When the controller is off, when the motor rotates, it will track the commutation and direction. Also calculate the duty cycle to achieve the same speed. When the motor is already, this will get a smoothly start