analogWrite(pin, value) - PWM 数字IO口PWM输出函数,Arduino数字IO口标注了PWM的IO口可使用该函数,pin表示3, 5, 6, 9, 10, 11,value表示为0~255。比如可用于电机PWM调速或音乐播放。3)扩展 I/O shiftOut(dataPin, clockPin, bitOrder, value) SPI外部IO扩展函数,通常使用带SPI接口的74HC595做...
int port[4] = {7, 6, 5, 4}; 这上面的数字和Arduino Nano的针脚有关(D4-D7)。 完整代码如下: // Please tune the following value if the clock gains or loses. // Theoretically, standard of this value is 60000. #defineMILLIS_...
shiftIn(dataPin, clockPin, bitOrder) 参数:[n],[n],[MSBFIRST |LSBFIRST];返回值: shiftOut(dataPin, clockPin, bitOrder, value) 参数:[n],[n],[MSBFIRST | LSBFIRST],{byte};返回值:无 tone(pin, frequency, [duration]) 参数:[n],{unsigned int}(赫兹),{unsigned long}(毫秒);返回值:无...
这上面的数字和Arduino Nano的针脚有关(D4-D7)。 完整代码如下: // Please tune the following value if the clock gains or loses. // Theoretically, standard of this value is 60000. #define MILLIS_PER_MIN 60000 // milliseconds per a minute // Motor and clock parameters // 4096 * 110 / ...
shiftOut(dataPin, clockPin, bitOrder,value); SPI外部IO扩展函数,通常使用带SPI接口的74HC595做8个IO扩展,dataPin为数据口,clockPin为时钟口,bitOrder为数据传输方向(MSBFIRST高位在前,LSBFIRST低位在前),value表示所要传送的数据(0~255),另外还需要一个IO口做74HC595的使能控制。
When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. The Nano has 8 analog inputs, each of which provide 10 bits of resolution (i.e. 1024 different values). By default they measure from ground to 5 volts, though is it possible to change the upper end ...
一个用于PID,一个用于OLED,最后一个用于热电偶。变量clockPin和clockPinState、debounce和encoder_btn_...
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800); int delayval = 500; void setup() { #if defined (__AVR_ATtiny85__) if (F_CPU == 16000000) clock_prescale_set(clock_div_1); #endif pixels.begin(); ...
shiftIn(dataPin, clockPin, bitOrder) 参数:[n],[n],[MSBFIRST |LSBFIRST];返回值:{byte} shiftOut(dataPin, clockPin, bitOrder, value) 参数:[n],[n],[MSBFIRST | LSBFIRST],{byte};返回值:无 tone(pin, frequency, [duration])
配置时钟:点击左上角的“Clock Configuration”,进入时钟配置界面。在这里,我们可以配置系统时钟、外设时钟等。为简化示例,我们使用默认的8MHz内部时钟(HSI)。生成代码:点击顶部菜单栏的“Project” -> “Generate Code”。在弹出的窗口中,设置项目名称、生成代码的位置,然后点击“OK”。STM32CubeMX会生成一个...