久坐提醒器
2018-10-237082
AI 快速预览详细
这是一个基于Arduino的久坐提醒器项目。通过使用超声波传感器检测用户是否久坐，并在久坐超过一定时间后发出声音提醒和显示提示信息。项目中使用了MsTimer2库来实现定时功能，结合超声波传感器检测距离，当距离小于51cm时触发提醒。这个项目不仅有助于保持健康，还能激发孩子的编程兴趣。
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代码 #include <SoftI2CMaster.h> #include <LiquidCrystal_SoftI2C.h> #include <MsTimer2.h> volatile float distance; float checkdistance_8_7() { digitalWrite(8, LOW); delayMicroseconds(2); digitalWrite(8, HIGH); delayMicroseconds(10); digitalWrite(8, LOW); float distance = pulseIn(7, HIGH) / 58.00; delay(10); return distance; } LiquidCrystal_SoftI2C mylcd(0x20,16,2,A5,A4); void msTimer2_func() { mylcd.clear(); distance = checkdistance_8_7(); delay(10); if (distance < 51) { tone(0,131); delay(10); mylcd.setCursor(1-1, 1-1); mylcd.print("您已久坐，"); mylcd.setCursor(1-1, 0-1); mylcd.print("该运动一下啦！"); delay(300); } } void setup(){ pinMode(8, OUTPUT); pinMode(7, INPUT); distance = checkdistance_8_7(); mylcd.init(); mylcd.backlight(); mylcd.display(); pinMode(0, OUTPUT); } void loop(){ if (digitalRead(7) == HIGH) { digitalWrite(8,HIGH); MsTimer2::set(1800000, msTimer2_func); MsTimer2::start(); } else { digitalWrite(8,LOW); } for (int time = 1; time <= 10; time = time + (1)) { mylcd.clear(); distance = checkdistance_8_7(); delay(10); if (distance < 51) { tone(0,131); delay(10); mylcd.setCursor(1-1, 1-1); mylcd.print("您已久坐，"); mylcd.setCursor(1-1, 0-1); mylcd.print("该运动一下啦！"); delay(300); } } } |
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