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The motorboard has an automatic low power shut off. This prevents power from being applied to the motors until they are at least rotating at 3mph.

Retrieved from ” http: This saves significant amounts of battery power microchhip prevents the motorboard from starting accidentally.

Motorboard Controller Source Code (Open Source)

Privacy policy About Motorboards Disclaimers Mobile view. Navigation menu Personal tools Create account Log in. The current code cannot be read because the “Code Protect” bit has been set, but it is possible to erase the chip and program it with new code.


The controller microcjip the speed of one of the motors the one with a optical wheel “chopper” attached to an elongated motor shaft.

When the battery is almost dead, the red light will blink and the buzzer on the motor contoller PCB will beep on and off 1 second on, 4 seconds off until the battery reaches the low power shut off.

Since there are eight optical slots on the chopper per turn, this means optical pulses per turn of an8999 wheel.

This page was last modified on 23 Marchat The Roth motorboards “maximum” speed of 18mph translates to optical pulses per second.

If low power is detected the red LED will blink, and power will be shut off completely. Views Read View source View history.

Motorboard Controller Source Code (Open Source) – Motorboards

The motorboard will not function and there will be no indication as to the cause of microcgip. When the battery gets critically low, the RED light will illuminate. If the speed of this motor is less than 3mph, no power will be provided to the motors. One turn of the wheel is at best inches The speed is controlled linearly, and no attempt is made to maintain a given speed for a given throttle position. Actually it operates at Hz measured.


PIC18F – Microcontrollers and Processors – Microcontrollers and Processors

Then the operator pushes to go. Because there is no indication that the motor is moving mircochip than 3mph, if the optical wheel fails for any reason the motorboard will assume that 3mph has not yet been reached.

The motor makes approximately When you turn the motorboard ON, the green light goes on ab899 off, then the yellow light goes on then off then the red light goes on then off and then the green light goes on solid.