4th week

During the fourth, week we got the BLDC motor working. We found out that the error was in the twist throttle, so we replaced it with a three wire potentiometer. Also, the green LED on the motor controller was not functional. The reason why we had trouble debugging the motor controller was because we checked if the throttle was working with a multimeter and it gave a voltage, but then later found that the twist was not being sensed on the controller connected to the throttle.

After we got the BLDC motor working, we decided to integrate the wireless and speed control functions from our rapid prototype. We used a joystick connected with the Arduino Uno which was the transmitter and the throttle connected to the Arduino Mega as the receiver.

Then we designed a relay to control the direction of the motor. If the throttle starts off at maximum then the motor will not run, so it should be noted that the the throttle should be set on minimum before starting the motor.

We also 3D printed a box to hold the wireless transmitter.

Next week, we plan on integrating everything onto the bogie.