result = value1 - value2; result = value1 * value2; result = value1 / value2; value1: 任何常量或者变量,value2: 任何常量或者变量 但是要注意,互相做运算的变量或是常得是同一类型,不是的话先转换成同一类型 编程小提示 整型常量的默认值是int类型,所以一些整型常量(定义中)的计算会导致溢出.(比如...
value1 - value2; result = value1 * value2; result = value1 / value2; Parameters: value1: 任何常量或者变量,value2: 任何常量或者变量 编程小提示 整型常量的默认值是 int 类型,所以一些整型常量(定义中)的计算会导致溢出.(比如: 60 * 1000 会得 到一个负数结果.那么 if(601000>0),if得到的是一...
) // 4 (+/- 4g) // 8 (+/- 8g) // 16 (+/- 16g) //函数返回:无 //函数功能:返回陀螺仪的测量范围 //*** CurieIMU.setAccelerometerRange(int range) 10、自动进行陀螺仪偏移计算 //***
for i in range(50): line = ser.readline() # read a byte if line: string = line.decode() # convert the byte string to a unicode string num = int(string) # convert the unicode string to an int print(num) ser.close() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. ...
Serial.println (value); Serial.print (range); Serial.println (" cm"); Serial.println (); delay (500); } //return distance (cm) uint16_t get_gp2y0a02 (uint16_t value) { if (value < 70) value = 70; return 12777.3/value-1.1; //(cm) ...
const int clkPin = A2; const int dtPin = A1; const int swPin = A3 ; int encoderVal = 0; int range = 5; void setup() { pinMode(clkPin, INPUT); pinMode(dtPin, INPUT); pinMode(swPin, INPUT); digitalWrite(swPin, HIGH); ...
The input range and resolution can be changed using analogReference (). It takes about 100 microseconds s) to read an analog input, so the maximum reading rate is about 10,000 times a second. 从指定的模拟引脚读取值。 Arduino 主板有 6 个通道( Mini 和 Nano 有 8 个, Mega 有 16 个),...
It displays floating-point values in a range from –5 to +5: /* * ShowSensorData. * * Displays bar graph of JSON sensor data ranging from -127 to 127 * expects format as: "{'label1': value, 'label2': value,}\n" * for example: * {'x': 1.0, 'y': -1.0, 'z': 2.1,}...
(uint8_t pin, uint32_t freq, uint8_t resolution); // pin select LEDC pin. // freq select frequency of pwm. // resolution select resolution for LEDC channel.range is 1-14 bits (1-20 bits for ESP32) ledcAttach(this->pinNumber,REFRESH_CPS, this->timer_width);//new //old ledc...
// read the analog in value: sensorValue = analogRead(analogInPin); // map it to the range of the analog out: outputValue = map(sensorValue, 0, 1023, 0, 255); // change the analog out value: analogWrite(analogOutPin, outputValue); ...