15. Case 14: Remote Control with Joystick:bit

15.1. Purpose

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• Programme to control the TPBot with the Joystick:bit.

15.2. Material

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• 1 x TPBot

15.3. Software

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MicroSoftmakecode

15.4. Programming

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• 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 the Joystick also. Click “Extensions” in the bottom of the drawer and seach with “joystick” in the dialogue box to download it.

##Sample

Remote Control Part

• Set the radio group as 1.

• Judge the value of x&y of the Joystick in the forever brick, if the value of the x is below 200, radio send number 4; if the value of the x is over 800, radio send number 3; if the value of the y is below 200, radio send number 2; if the value of the y over 800, radio send number 1; or radio send number 0.

Link

• Link: https://makecode.microbit.org/_7rzb5TEfrbu7

• You may also download it directly below:

--- ### Receiving Part - Set the radio group as 1. - Save the received number as the variable in "on radio received..."block. - Judge if the value is 1, if yes, set the TPBot moving forward at the speed of 100%; if it's 2, set the TPBot reversing at the speed of 50%; if it's 3, set the TPBot turning left at the speed of 50%; if it's 4, set the TPBot turning right at the speed of 50%; If it's 0, set the TPBot to stop.

Link

• Link: https://makecode.microbit.org/_HPVCEx29zTPx

• You may also download it dorectly below:

--- ## Conclusion ---

• The movement of the TPBot is controlled via the Joystick:bit.

15.5. Exploration

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15.6. FAQ

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Q: The car does not work with the code in the wiki.
A: It should be the batteries that are lack of power, please try to fix it by adding the value of the speed in the code.

15.7. Relevant File

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