for(intx=2;x<100;x=x*1.5){ println(x); }5 生成:2,3,4,6,9,13,19,28,42,63,94 另一个例子,使用 for循环使 LED产生渐亮渐灭的效果: voidloop() { intx=1; for(inti=0;i>-1;i=i+x) { analogWrite(PWMpin,i); if(i==255)x=-1; // 在峰值转变方向 delay(10); } } 2.4 s...
numPixels(); i++) { // For each pixel in strip... // Offset pixel hue by an amount to make one full revolution of the // color wheel (range of 65536) along the length of the strip // (strip.numPixels() steps): int pixelHue = firstPixelHue + (i * 65536L / strip.num...
for (int i = 0; i > -1; i = i + x) //定义i为0当i小于负一的时候,i的值为它自己加上X,也就是加上1,灯就依次变亮了 { analogWrite(PWMpin, i); //让PWMpin针脚的电平变为i if (i == 255) x = -1; // 当i等于最大值255的时候,把x改变为负一,这样再循环上去的时候i的值就会...
AI代码解释 voidread_input_analog(){for(int i=54;i<=NUMBER_ANALOG_INPUT_PORTS;i++){String pinNumber="A";pinNumber+=i;String message="#A";message+=i-54;message+=":";// IMPORTANT NOTE: 54 represents analog pin A0 and 64 Analog pin A11message+=analogRead(i);message+='!';Serial.pr...
// in steps of 1 degree myservo.write(pos); // 舵机角度写入 delay(5); // 等待转动到指定角度 } for (pos = 180; pos >= 0; pos --) { // 从180°到0° myservo.write(pos); // 舵机角度写入 delay(5); // 等待转动到指定角度 ...
double maxInFreq; void loop() { // 采样 for (int i = 0; i < SAMPLES; i++) { unsigned long newTime = micros(); int value = analogRead(ANALOG_PIN); vReal[i] = value; vImag[i] = 0; while (micros() < (newTime + sampling_period_us)) { ...
/*Set the different leds. Control for too high and too low values. Fun thing to try: Dont account for overflow in one direction, some interesting light effects appear! */ for (int i = 0; i < NUM_LEDS; i++) //The leds we want to show ...
for(inti = 0; i < 8; i++) {// i = row (led matrix) // sound level peakToPeak[i] = signalMaxBuff[i] - signalMinBuff[i]; // Map 1v p-p level to the max scale of the display displayPeak[i] = map(peakToPeak[i], 0, 1023, 0, maxScale); ...
for (int16_t i=0; i<display.width(); i+=2) { // x1 y1 x2 y2 display.drawLine(i, 0, i, display.height(), WHITE); display.display(); delay(5); } delay(250); display.clearDisplay(); for (int16_t i=0; i<display.height(); i+=2) { ...
Here is the circuit for sensing the battery voltage: The Arduino can accept up to 5v on a analog input. Our battery voltage can range as high as 17vdc in certain charge cycles, so we designed a voltage divider that would provide 5v at 17v battery voltage, and less at various lower vol...