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https://github.com/m5stack/M5Stack.git
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sakabin
f9953af750
1. Reduce battery charging current to 650ma 2. Set battery charging voltage to 4.2v
48 lines
1.2 KiB
Arduino
48 lines
1.2 KiB
Arduino
/*
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Name: button.ino
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Created: 2018/9/21 14:06:15
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Author: sakabin
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*/
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#include <M5Stack.h>
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// The setup() function runs once each time the micro-controller starts
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void setup() {
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// init lcd, serial, but don't init sd card
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M5.begin(true, false, true);
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/*
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Power chip connected to gpio21, gpio22, I2C device
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Set battery charging voltage and current
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If used battery, please call this function in your project
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*/
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M5.Power.begin();
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M5.Lcd.clear(BLACK);
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M5.Lcd.setTextColor(YELLOW);
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M5.Lcd.setTextSize(2);
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M5.Lcd.setCursor(65, 10);
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M5.Lcd.println("Button example");
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M5.Lcd.setCursor(3, 35);
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M5.Lcd.println("Press button B for 700ms");
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M5.Lcd.println("to clear screen.");
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M5.Lcd.setTextColor(RED);
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}
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// Add the main program code into the continuous loop() function
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void loop() {
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// update button state
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M5.update();
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// if you want to use Releasefor("was released for"), use .wasReleasefor(int time) below
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if (M5.BtnA.wasReleased()) {
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M5.Lcd.print('A');
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} else if (M5.BtnB.wasReleased()) {
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M5.Lcd.print('B');
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} else if (M5.BtnC.wasReleased()) {
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M5.Lcd.print('C');
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} else if (M5.BtnB.wasReleasefor(700)) {
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M5.Lcd.clear(BLACK);
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M5.Lcd.setCursor(0, 0);
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}
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}
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