So you just got your ChapR and you need to know what to do next? You’ve come to the right place. Just follow these steps… even #0!
If you’re looking for a quick video introduction, check out the videos on our links page.
Insert battery in the ChapR
It is smart to use high-powered Lithium batteries in the ChapR. They last a lot longer, and hold their voltage all the way until they die. Some people (like FTC team 8016) use rechargeable batteries – which works great if you’re doing a LOT of drive practice.
If the power light on your ChapR starts blinking rapidly, then you need a new battery! It will start to blink when the battery voltage gets below 6.5 volts. If this happens, the ChapR will still run for a few minutes, but you’re on borrowed time!
Can’t find the battery compartment? Click here.
Get the NXT Ready
The ChapR uses Bluetooth to control your robot. So you need to prepare the NXT for easy pairing to the ChapR:
Pair the ChapR with your robot
When the ChapR pairs with an NXT brick, it learns the Bluetooth ID and remembers it so that the ChapR will connect automatically on power-up the next time. There are two ways to pair: USB and Bluetooth.
YOU ONLY NEED TO PAIR TO AN NXT ONCE UNLESS YOU ARE PAIRING TO A DIFFERENT NXT.
Then you are ready to drive! Plug in controllers, go to your program on the NXT, run it, and press the black action button on the ChapR to release WaitForStart, and drive away! Keep in mind that you can hit the red button to abort the program if something goes wrong. When you are done using the ChapR, don’t forget to hold down the red button to turn it off! Still, the ChapR has an automatic timeout so it will power off automatically after ten minutes.