29 lines
1.2 KiB
Markdown
29 lines
1.2 KiB
Markdown
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# Reflected light measure
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This example uses a color sensor to measure the reflected light on the dark and light surface
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and set the light/dark thresholds.
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```blocks
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sensors.color3.onLightDetected(LightIntensityMode.Reflected, Light.Dark, function () {
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brick.showString("dark", 2)
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})
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sensors.color3.onLightDetected(LightIntensityMode.Reflected, Light.Bright, function () {
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brick.showString("bright", 2)
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})
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console.sendToScreen()
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console.log("move color sensor")
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console.log("over DARK color")
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console.log("press ENTER when ready")
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brick.buttonEnter.pauseUntil(ButtonEvent.Pressed)
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sensors.color3.setThreshold(Light.Dark, sensors.color3.light(LightIntensityMode.Reflected) + 5)
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console.logValue("dark", sensors.color3.threshold(Light.Dark))
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console.log("move color sensor")
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console.log("over BRIGHT color")
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console.log("press ENTER when ready")
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brick.buttonEnter.pauseUntil(ButtonEvent.Pressed)
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sensors.color3.setThreshold(Light.Bright, sensors.color3.light(LightIntensityMode.Reflected) - 5)
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console.logValue("bright", sensors.color3.threshold(Light.Bright))
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forever(function () {
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brick.showValue("reflected light", sensors.color3.light(LightIntensityMode.Reflected), 1)
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})
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```
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