我的舵機的三條線是紅的、黃色、棕色,接法如下:
棕 : GND
紅 : VCC(5V)
黃:信號線(IO16)
#include <Arduino.h> int freq = 50; // 頻率(20ms周期) int channel = 8; // 通道(高速通道(0 ~ 7)由80MHz時鍾驅動,低速通道(8 ~ 15)由 1MHz 時鍾驅動。) int resolution = 8; // 分辨率 const int led = 16; int calculatePWM(int degree) { //0-180度 //20ms周期,高電平0.5-2.5ms,對應0-180度角度 const float deadZone = 6.4;//對應0.5ms(0.5ms/(20ms/256)) const float max = 32;//對應2.5ms if (degree < 0) degree = 0; if (degree > 180) degree = 180; return (int)(((max - deadZone) / 180) * degree + deadZone); } void setup() { Serial.begin(9600); ledcSetup(channel, freq, resolution); // 設置通道 ledcAttachPin(led, channel); // 將通道與對應的引腳連接 } void loop() { for (int d = 0; d <= 180; d += 10) { ledcWrite(channel, calculatePWM(d)); // 輸出PWM Serial.printf("value=%d,calcu=%d\n", d, calculatePWM(d)); delay(1000); } }