ESP32 最小 Arduino PWM 输出示例 (PlatformIO)

esp32_pwm_example.cpp

#include <Arduino.h>
#include <driver/ledc.h>

void setup() {
    Serial.begin(115200);

    ledcSetup(LEDC_CHANNEL_0, 10000 /* Hz */, 12);

    ledcAttachPin(GPIO_NUM_14, LEDC_CHANNEL_0);
    ledcWrite(LEDC_CHANNEL_0, 2048); // 50%
}

void loop() {
    // 如何将占空比更改为 25% 的示例
    ledcWrite(LEDC_CHANNEL_0, 1024);
}

#include <Arduino.h>
#include <driver/ledc.h>

void setup() {
    Serial.begin(115200);

    ledcSetup(LEDC_CHANNEL_0, 10000 /* Hz */, 12);

    ledcAttachPin(GPIO_NUM_14, LEDC_CHANNEL_0);
    ledcWrite(LEDC_CHANNEL_0, 2048); // 50%
}

void loop() {
    // 如何将占空比更改为 25% 的示例
    ledcWrite(LEDC_CHANNEL_0, 1024);
}

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