17. Case15: Speed Adjustable TPBot¶
Adjust the speed of the TPBot with the potentiometer.
17.3. Hardware connection¶
Connect potentiometer to port 1 on TPBot.
Click “Advanced” to see more choices in the MakeCode drawer.
We need to add a package for programming. Click “Extensions” in the bottom of the drawer and search with “tpbot” in the dialogue box to download it.
We need to add a package for programming. Click “Extensions” in the bottom of the drawer and seach with “PlanetX” in the dialogue box to download it.
Drag the show icon brick into on start.
In forever brick, map the returned value of the potentiometer from 0~1023 to 0~100, and set the mapping value as the speed for the car to move forward.
After powering on, the speed of the TPBot could be adjusted by the potentioneter.
Q: While operating this case, why the car might not work properly?
A: It might be the low power of the batteries, please try adding the value of TPBot’s speed and test again.