代码中指定的所需交流电压: 登录后复制Serial.print(" ac voltage ") ;// this gives name “ac voltage” to the printed analog valueSerial.print(n) ;// this simply prints the ac voltage value int m;// initialise variable m float n;//initialise variable n void setup() { pinMode(A0,INPUT...
Serial.print(n) ; // this simply prints the ac voltage value 复制代码 代码 int m;// ...
格瑞图:Arduino-0007-内置示例-读取模拟电压 Read Analog Voltage 格瑞图:Arduino-0008-内置示例-非延迟闪烁 Blink Without Delay 格瑞图:Arduino-0009-内置示例-按钮 Button 格瑞图:Arduino-0010-内置示例-去抖 Debounce 格瑞图:Arduino-0011-内置示例-数字输入上拉 DigitalInputPullup 格瑞图:Arduino-0012-内置示例-...
// Stores all of the bmp085's calibration values into global variables // Calibration values are required to calculate temp and pressure // This function should be called at the beginning of the program void bmp085Calibration() { ac1 = bmp085ReadInt(0xAA); ac2 = bmp085ReadInt(0xAC); ...
}voidloop(){// Readthe ADC, and calculate voltage and resistance from itintADCflex =analogRead(flexPin);floatVflex = ADCflex * VCC /1023.0;floatRflex = R_DIV * (VCC / Vflex -1.0); Serial.println("Resistance: "+String(Rflex) +" ohms");// Use the calculated resistance to estimate ...
An interpretation of voltage, current, and resistance 欧姆定律 物理学家和数学家乔治·西蒙·欧姆发现了电压、电流和电阻之间的关系;这个关系叫做欧姆定律。欧姆定律说电压等于安培乘以电阻,写成 V = I * R 其中 V 是伏特,I 是电流,R 是电阻。利用该公式,您还可以找到电阻 R = V / I,并找到电流 I = ...
5、Dielectric voltage 耐电压:1 Minute at AC 250V 三、SWITCH CHARACTERISTICS 开关规格 1、Operating force 开关按压力:740±300gf 2、Contact resistance 接触阻抗:100mΩ Max 3、Rating power 额定功率:DC12V 50mA 四、ENDURANCE CHARACTERISTIC 耐久特性 ...
It compares the voltage levels on two inputs and gives a digital output based on this comparison. The megAVR chip has four positive AC pins and three negative. There's also a configurable internal voltage reference that can be used on the negative comparator pin instead of an external ...
(adc_dev, var);/* 读取采样值 */value =rt_adc_read(adc_dev, var);rt_kprintf("the value is :%d ", value);/* 转换为对应电压值 */vol = value * REFER_VOLTAGE / CONVERT_BITS;rt_kprintf("the voltage is :%d.%02d ", vol /100, vol %100);/* 关闭通道 */ret =rt_adc_disable(...
继电器是一种用于响应施加的输入信号而在两个或多个点或设备之间提供连接的设备。换句话说,继电器提供了控制器和设备之间的隔离,因为设备可以在AC和DC上工作。但是,他们从微控制器接收信号,因此我们需要一个继电器来弥补差距。当需要用小电信号控制大量电流或电压时,继电器非常有用。