Skip to main content

Case16: The Dazzling Lights

Purpose​

  • Simulate the lights of the police car.

Material​

Hardware connection​

Connect rainbow led to port 1 on TPBot.

Software​

MicroSoftmakecode

Programming​

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.

Sample​

  • In on start brick, initialize the led strip and has it connected to J1 port, set TPBot move forward at the speed of 50%.
  • Save the variable "i" as 1 while pressing button A and set it as 0 while pressing button B.
  • In forever brick, judge if the variable "i" is 1, if yes, set the led in red and pasue for 500ms, after in blue and pause another 500ms; or set it in black.

Conclusion​

  • The TPBot moves forward after powering on, press button A on the micro:bit to turn on the LED cycling with red and blue, press button B to turn it off.

Exploration​

FAQ​

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.

Relevant File​