Getting Started with the Red Hat Co.Lab Robot

Contributors:

D___Run___,

Gina Likins

Troubleshooting

If your robot won’t move...	Make sure you have power! You should see a red blinking light on the moto:bit where it says “STAT” (status). If not, then... Check the STOP/RUN MOTORS switch -- should be set to RUN Make sure the barrel jack is completely plugged in. Make sure your batteries are all oriented the right direction. Try new batteries. (See information on Changing Batteries below) If you have power... Make sure your motors are hooked up correctly in the motor ports
The Moto:bit tools don’t show up in MakeCode...	Try installing them again from the add package option in MakeCode
You don’t see the Micro:Bit on your computer when you go to transfer your code	Make sure that USB cable is inserted all the way into your micro:bit. Try unplugging the USB cable and plugging it back in.
Your robot is spinning in a circle or running in reverse...	Follow the steps under Fixing Motor Issues section?
Your robot isn’t driving in a straight line…	Look at the lines in the code where you tell each motor what to do: `move _____ motor _____ at__ %` This command tells the robot which motor to move (`RIGHT` or `LEFT`), which direction to move it (`FORWARD` or `REVERSE`), and at which throttle / power percentage to spin it (`0`-`100`). By adjusting the throttle / power percentage of the two motors relative to each other you can make one “stronger” than the other. So, for instance, if your robot lists to the left you can turn your right motor “down” to 90% power and leave your left motor at 100%. Play with the amounts to see how much correction your motors need.

Changing Batteries

When you find that you need to replace the batteries in the micro:bot, first unplug the battery pack from the moto:bit.

Turn the micro:bot over and push on the Battery Holder through the hole in the Bottom Chassis. This will cause the Battery Pack Clip to unsnap from the Bottom Chassis.