defined(__AVR_ATmega8__)caseTIMER0A:// connect pwm to pin on timer 0sbi(TCCR0,COM00);OCR0=val;// set pwm dutybreak;#endif//为了简化篇幅,省略部分代码,具体请查看库源代码caseNOT_ON_TIMER:default:if(val<128){digitalWrite(pin,LOW);}else{digitalWrite(pin,HIGH);}}} 用USB逻辑分析仪来分...
{//We need to make sure the PWM output is enabled for those pins//that support it, as we turn it off when digitally reading or//writing with them. Also, make sure the pin is in output mode//for consistenty with Wiring, which doesn't require a pinMode//call for the analog output ...
tone(pin,frequency)函数可以产生固定频率的PWM信号来驱动扬声器发声，pin参数是指连接到蜂鸣器的数字引脚，frequency参数是以Hz（赫兹）为单位的频率值；noTone(pin)函数表示停止发声，pin参数表示所要设置的引脚；pulseIn(pin,value)函数用于读取引脚脉冲的时间长度，pin参数是指读取脉冲的引脚，value是指读取的脉冲类型...
采集驱动信号波形 - 重点关注：脉冲边沿陡峭度、PWM占空比一致性2. **音频分析法**： - 通过手机APP分析电机运行噪声频谱 - 典型健康频谱应呈均匀分布，共振时会出现明显尖峰3. **参数自整定算法**：```cppvoid autoTune() { for (int freq=10; freq<1000; freq+=10) { setFrequency(freq...
44 http://code.google.com/p/arduino-pwm-frequency-library/downloads/list 老大，google上不去啊 ...
This example demonstrates I2S ADC capability to sample high frequency analog signals. The PWM signal generated with ledc is only for ease of use when first trying out. To sample the generated signal connect default pins 22(PWM) and 32(Sampling) together. ...
}voidloop() {//put your main code here, to run repeatedly:longfrequency =300; tone(buzzer, frequency); delay(100); noTone(buzzer); delay(2000);//while(1){//for(int i; i < 80; i++){//digitalWrite(buzzer, HIGH);//delay(1);//digitalWrite(buzzer, LOW);//delay(1);//}//for...
void setPwmFrequency(int pin,字节模式){发送确认();curPwmMode = 模式;如果(模式 == 0){类比写入(引脚,0);} 别的 {类比写入(引脚,128);if (pin == 5 || pin == 6 || pin == 9 || pin == 10) {如果(针 == 5 || 针 == 6){...
// Changing Pin 3 PWM frequency int pwm Pin = 3;int directionPin = 15;int brakePin = 6;int temperatureSensePin = 2;int currentSensePin = 14;int var = 0;void setup(){ pinMode(pwmPin, OUTPUT);pinMode(directionPin, OUTPUT);pinMode(brakePin, OUTPUT);pinMode(temperatureSensePin, INPUT...
TCCR0B = TCCR0B & B11111000 | B00000011; // set timer 0 divisor to 64 for PWM frequency of 976.56 Hz (The DEFAULT) //TCCR0B = TCCR0B & B11111000 | B00000100; // set timer 0 divisor to 256 for PWM frequency of 244.14 Hz ...