Inventors Kit Experiment 5 - Using The Accelerometer To Control Motor Speed :The BBC micro:bit has a built-in accelerometer. The accelerometer detects if it is speeding up or slowing down in 3 directions, labelled below as X, Y and Z. Each axis can measure between -4096 and 4096 which correlates with -4 and 4Gs. A G is an acceleration of 9.81 meters per second per second; this is the acceleration that objects under the influence of earth’s gravity experience.
Video Walk-Through With Hints & Tips:
Code Downloads:The code examples below have been individually zipped and can be downloaded by clicking on your preferred option. Once unzipped you can either open the and edit the code in appropriate editor or place the HEX file onto your microbit*.
MakeCode Editor & Python Code Downloads:
- This code was created with the MakeCode Editor, download the HEX file here.
- This code was created with the Python Editor, download the HEX file here.
Legacy Editors Code Downloads:NOTE: The legacy editors will disappear at some undisclosed point in the future. The code can still be placed on a microbit and will run regardless but you won't be able to use an editor. When that happens, switch to using one of the currently supported editors. We've already made the switch as the new editors are better and more fully featured.
- To add a new variable called 'Tilt' select 'var (new variable)' and change the default name to 'Tilt'.
- To add the input -> acceleration code delete the default '0' and then use the commands within the 'input' command set.
- To use the Tilt variable delete the default value and then select the 'Tilt' variable.
Kitronik Inventors Kit Resources:
|Exp No#.||Experiment Name.||Resource Type.|
|1||Say Hello to the BBC micro:bit.||Further Help.|
|2 Pre V1.7||Using an LDR and analog inputs.||Full Experiment + Further Help.|
|2 V1.7||Using a Light Sensor & analog inputs.||Full Experiment + Further Help.|
|3||Dimming an LED using a potentiometer.||Further Help.|
|4||Using a transistor to drive a motor.||Full Experiment + Further Help.|
|5||Using the accelerometer to control motor speed.||Further Help.|
|6||Setting the tone with a piezo buzzer.||Further Help.|
|7||Wind Power.||Full Experiment + Further Help.|
|8||Making a game using the compass.||Further Help.|
|9||Capacitor charge circuit.||Further Help.|
|10||Using an RGB LED.||Further Help.|
|11||Making a pedestrian crossing.||Full Experiment + Further Help.|
|12||Making a random dice.||Full Experiment + Further Help.|
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