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- /*
- *******************************************************************************
- * Copyright (c) 2022 by M5Stack
- * Equipped with M5Core sample source code
- * 配套 M5Core 示例源代码
- * Visit for more information: https://docs.m5stack.com/en/core/gray
- * 获取更多资料请访问: https://docs.m5stack.com/zh_CN/core/gray
- *
- * Describe: EARTH. 土壤湿度
- * Date: 2021/8/11
- *******************************************************************************
- Please connect to Port B(26、36),Read the analog quantity and digital quantity
- returned by the EARTH unit, and convert the analog quantity into 12-bit data and
- display it on the screen. 请连接端口B(26、36),读取EARTH Unit
- 返回的模拟量和数字量，并将模拟量转换为12位数据显示在屏幕上。
- */
- #include <M5Stack.h>
- void setup() {
- M5.begin(); // Init M5Stack. 初始化M5Stack
- M5.Power.begin(); // Init power 初始化电源模块
- M5.lcd.setTextSize(2); // Set the text size to 2. 设置文字大小为2
- M5.Lcd.printf("UNIT_EARTH EXAMPLE\n");
- pinMode(26, INPUT); // Set pin 26 to input mode. 将引脚26设置为输入模式
- dacWrite(25, 0); // disable the speak noise. 禁用喇叭
- }
- void loop() {
- M5.Lcd.setCursor(0, 80); // Set the cursor at (0,80). 将光标设置在(0,80)
- M5.Lcd.printf("AnalogRead:%d\n", analogRead(36));
- M5.Lcd.printf("DigitalRead:%d\n", digitalRead(26));
- delay(1000);
- }
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