Created
June 16, 2018 13:37
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| // | |
| // m5stack_adc_test.ino | |
| // | |
| // Copyright (c) 2018 yoggy <[email protected]> | |
| // Released under the MIT license | |
| // http://opensource.org/licenses/mit-license.php;// | |
| // | |
| #include <M5Stack.h> | |
| void setup() { | |
| M5.begin(); | |
| dacWrite(25, 0); // Speaker OFF | |
| M5.Lcd.fillScreen(BLACK); | |
| // text print | |
| M5.Lcd.fillScreen(BLACK); | |
| M5.Lcd.setTextColor(WHITE, BLACK); | |
| M5.Lcd.setTextSize(7); | |
| M5.Lcd.setCursor(0, 0); | |
| M5.Lcd.printf("AD36val"); | |
| } | |
| void loop(){ | |
| uint16_t val = analogRead(36); // 0-4095 | |
| M5.Lcd.setCursor(0, 56); | |
| M5.Lcd.printf("%d ", val); | |
| uint16_t x = val/(4096/320); | |
| M5.Lcd.fillRect(0, 112, x, 240-112, GREEN); | |
| M5.Lcd.fillRect(x, 112, 320-x, 240-112, BLACK); | |
| if(M5.BtnA.wasPressed()) { | |
| M5.powerOFF(); | |
| } | |
| } |
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