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Case 13: Remote Control with Joystick:bit

Purpose

Use the joystick:bit to control the Cutebot.

Materials

1 x Cutebot Kit

1 x Joystick:bit V2

Software Platform

MicroSoft makecode

Programming

Step 1

Click the "Advanced" to see more choices in the MakeCode drawer.

A codebase is required for Cutebot programming, click “Add Package” at the bottom of the drawer, search Cutebot in the dialogue box and download it.

A codebase is required for Joystick:bit V2 programming, click “Add Package” at the bottom of the drawer, search joystic in the dialogue box and download it.

Note: If you met a tip indicating incompatibility of the codebase, you can continue with the tips or build a new project there.

Step 2: Joystick:bit Programming

Set "radio set group" to 1 in the On start brick.

The scope for X and Y is 0~1023, the theoretical value is 512 if the rocker is in the middle place , in this way we need to make 0~1023 map map in the scope of -100~100.

Set x whose value is given by "acceleration (mg) x" exactly divides 10 to the radio value in forever brick.

Set y whose value is given by "acceleration (mg) y" exactly divides 10 to the radio value in forever brick.

The scope of the acceleration value is 0~1024 , which can be regarded roughly as the speed value in 0~100 after dividing 10.

Programming

Links: https://makecode.microbit.org/_cVWKfb09E5st

You can also download it directly below:

Step 3: Cutebot Programming

Set the "radio set group" to 1 in the On start brick. Items must be the same with the remote control for the correct match.

Drag two "if" bricks into the on radio received brick and judge if the radio revived value name is x or y

If the radio received value name is x, it is the data for X and then save the value in the variable xValue.

If the radio received value name is y, it is the data for y and then save the value in the variable yValue.

In forever brick, set the left wheel speed to yValue+xValue and right wheel speed to yValue-xValue.

Programming

Links: https://makecode.microbit.org/_WDpVxaeTXdLT

You can also download it directly below:

Result

The rocker controls the movement of the Cutebot.

Exploration


FAQ


Relevant Files