Created
September 6, 2017 00:59
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Circuit Playground MakeCode turning test
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| let current_x = 0 | |
| let turning_right = 0 | |
| let turning_left = 0 | |
| let threshold_changed = 0 | |
| let threshold_increment = 0 | |
| let turning_threshold = 0 | |
| input.buttonA.onEvent(ButtonEvent.Click, function () { | |
| turning_threshold += threshold_increment | |
| turning_threshold = Math.constrain(turning_threshold, 0, 1023) | |
| threshold_changed = 1 | |
| }) | |
| input.buttonB.onEvent(ButtonEvent.Click, function () { | |
| turning_threshold += -1 * threshold_increment | |
| turning_threshold = Math.constrain(turning_threshold, 0, 1023) | |
| threshold_changed = 1 | |
| }) | |
| loops.forever(function () { | |
| if (threshold_changed) { | |
| show_current_threshold() | |
| loops.pause(500) | |
| threshold_changed = 0 | |
| serial.writeValue("turning_threshold", turning_threshold) | |
| } | |
| turning_left = 0 | |
| turning_right = 0 | |
| // Sample the current X axis accelerometer reading | |
| // which will be from -1023 to 1023. | |
| current_x = input.acceleration(Dimension.X) | |
| serial.writeValue("current_x", current_x) | |
| // Check the X accelerometer value and see if it | |
| // exceeds the threshold indicating a turn, and set | |
| // turning_left or turning_right as appropriate. | |
| if (current_x >= turning_threshold) { | |
| turning_left = 1 | |
| } else { | |
| if (current_x <= -1 * turning_threshold) { | |
| turning_right = 1 | |
| } | |
| } | |
| // Change LED color based on turning direction, green | |
| // for left. | |
| if (turning_left) { | |
| light.showRing( | |
| `red red red red red black black black black black` | |
| ) | |
| } else { | |
| // If turning right, make all the pixels red, if not, | |
| // we must be going straight, so make all the pixels | |
| // white | |
| if (turning_right) { | |
| light.showRing( | |
| `black black black black black red red red red red` | |
| ) | |
| } else { | |
| light.pixels.setAll(Colors.Black) | |
| } | |
| } | |
| }) | |
| function show_current_threshold() { | |
| light.pixels.clear() | |
| // The turning threshold will now be clamped to | |
| // 0-1023. Map this to one of the ten Neopixels and | |
| // light it up to show the current threshold as user | |
| // feedback. | |
| light.pixels.setPixelColor(Math.map( | |
| turning_threshold, | |
| 0, | |
| 1023, | |
| 0, | |
| 9 | |
| ), Colors.Yellow) | |
| light.pixels.show() | |
| } | |
| turning_threshold = 512 | |
| threshold_increment = 128 | |
| threshold_changed = 1 |
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