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96 lines
3.1 KiB
96 lines
3.1 KiB
5 years ago
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#ifndef CAPTOUCHDEMO_H
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#define CAPTOUCHDEMO_H
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#include "Demo.h"
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#define CAP_SAMPLES 20 // Number of samples to take for a capacitive touch read.
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#define TONE_DURATION_MS 100 // Duration in milliseconds to play a tone when touched.
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class CapTouchDemo: public Demo {
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public:
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uint16_t CAP_THRESHOLD = 200; // Threshold for a capacitive touch (higher = less sensitive).
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CapTouchDemo() {
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playSound = false;
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if (CircuitPlayground.isExpress()) {
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CAP_THRESHOLD = 800;
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} else {
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CAP_THRESHOLD = 200;
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}
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}
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~CapTouchDemo() {}
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virtual void loop() {
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// Clear all the neopixels.
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for (int i=0; i<10; ++i) {
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CircuitPlayground.strip.setPixelColor(i, 0);
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}
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// Check if any of the cap touch inputs are pressed and turn on those pixels.
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// Also play a tone if in tone playback mode.
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if (CircuitPlayground.readCap(0, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(3, CircuitPlayground.colorWheel(256/10*3));
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if (playSound) {
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CircuitPlayground.playTone(330, TONE_DURATION_MS); // 330hz = E4
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}
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}
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if (CircuitPlayground.readCap(1, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(4, CircuitPlayground.colorWheel(256/10*4));
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if (playSound) {
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CircuitPlayground.playTone(349, TONE_DURATION_MS); // 349hz = F4
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}
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}
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if (CircuitPlayground.readCap(2, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(1, CircuitPlayground.colorWheel(256/10));
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if (playSound) {
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CircuitPlayground.playTone(294, TONE_DURATION_MS); // 294hz = D4
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}
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}
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if (CircuitPlayground.readCap(3, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(0, CircuitPlayground.colorWheel(0));
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if (playSound) {
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CircuitPlayground.playTone(262, TONE_DURATION_MS); // 262hz = C4
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}
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}
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if (CircuitPlayground.readCap(6, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(6, CircuitPlayground.colorWheel(256/10*6));
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if (playSound) {
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CircuitPlayground.playTone(440, TONE_DURATION_MS); // 440hz = A4
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}
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}
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if (CircuitPlayground.readCap(9, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(8, CircuitPlayground.colorWheel(256/10*8));
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if (playSound) {
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CircuitPlayground.playTone(494, TONE_DURATION_MS); // 494hz = B4
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}
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}
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if (CircuitPlayground.readCap(10, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(9, CircuitPlayground.colorWheel(256/10*9));
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if (playSound) {
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CircuitPlayground.playTone(523, TONE_DURATION_MS); // 523hz = C5
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}
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}
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if (CircuitPlayground.readCap(12, CAP_SAMPLES) >= CAP_THRESHOLD) {
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CircuitPlayground.strip.setPixelColor(5, CircuitPlayground.colorWheel(256/10*5));
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if (playSound) {
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CircuitPlayground.playTone(392, TONE_DURATION_MS); // 392hz = G4
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}
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}
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// Light up the pixels.
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CircuitPlayground.strip.show();
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}
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virtual void modePress() {
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// Turn sound on/off.
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playSound = !playSound;
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}
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private:
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bool playSound;
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};
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#endif
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