Hi,

I'm building a model car. The function of the servo is not a problem and this works well. However, I have problems with motor control. To this end I have an electronic drive control unit. This is connected to the battery and the motor. A three-core cable is still on for the voltage supply of 5.0V and white core for the control signal. With this I run the mbed and the servo to steer the vehicle. I have only the value of the frequency (1 kHz)of the electronic drive control unit. I have now occupied the pin 21 if it were a servo, I get a good PWM signal, which I measured with the oscilloscope. The power required on first use back to neutral. But how can I do that? The variable of the servo is 0 does not put up enough. Furthermore, the drive electronic control unit does not work, the engine has no function. Or do I have here to switch to PPM? If so, how?

The manual of the is attached /media/uploads/BastlWastl/206963-an-01-ml-elektronischer_fahrtregler_de_en_fr_nl.pdf .

http://www.conrad.de/ce/de/product/206963/CARBON-SERIES-FAHRTREGLER-15-TURNS/SHOP_AREA_32305&promotionareaSearchDetail=005

Thanks for all help!

Hello Sebastian, the regulator try to detect the neutral signal when switched on. You have to set the servo on pin 21 to 50% before turn on the regulator.

Turn on you transmitter (check the status of the battery or the rechargeable battery!) Place the trim regulator in the centre position; place the throttle lever in the neutral position. • The switch drive control unit switch must be set to the "OFF" position.

Peter