ledcSetup(ledChannel, freq, resolution); //设置通道的频率和分辨率。 ledcAttachPin(ledPin, ledChannel); //引脚和通道关联。 } void loop(){ for(int dutyCycle = 0; dutyCycle <= 255; dutyCycle++){ ledcWrite(ledChannel, dutyCycle); //向通道(引脚)发送pwm值 delay(15); } for(int dutyCyc...
ledcAttachPin(2,3); ledcWrite(3,64); 1. 2. 3. 4. 总结 使用ledcSetup()函数建立 LEDC 通道; 通过ledcAttachPin()将 GPIO 口与 LEDC 通道关联; 通过ledcWrite()、ledcWriteTone()、ledcWriteNote()设置频率、设置蜂鸣器音调等等 通过ledcDetachPin()解除 GPIO 口与 LEDC 通道的关联 呼吸灯项目示例 #...
void setup(){ //PWM参数设置 ledcSetup(ledChannel, freq, resolution); //将生成信号通道绑定到输出通道上 ledcAttachPin(ledPin, ledChannel); } void loop(){ //逐渐变亮 for(int dutyCycle = 0; dutyCycle <= 255; dutyCycle++){ // changing the LED brightness with PWM ledcWrite(ledChannel, ...
void setup() { Serial.begin(115200); Serial.setDebugOutput(true); Serial.println(); while(axp.begin() != 0){ Serial.println("init error"); delay(1000); } axp.enableCameraPower(axp.eOV2640); // 给摄像头供电 camera_config_t config; config.ledc_channel = LEDC_CHANNEL_0; config.ledc...
void setupCamera() { while (axp.begin() != 0) { Serial.println("init error"); delay(1000); } axp.enableCameraPower(axp.eOV2640); camera_config_t config; config.ledc_channel = LEDC_CHANNEL_0; config.ledc_timer = LEDC_TIMER_0; ...
第一个函数：ledcSetup函数，该函数功能是指定LEDC通道的PWM信号频率和占空比分辨率。double ledcSetup(...
*/constintledPin =21;// PWM生成后实际输出引脚//设置PWM参数constintfreq =10000;//PWM频率constintledChannel =0;//信号生成GPIOconstintresolution =8;//8位分辨率voidsetup(){//PWM参数设置ledcSetup(ledChannel, freq, resolution);//将生成信号通道绑定到输出通道上ledcAttachPin(ledPin, ledChannel); ...
void setup() { Serial.begin(115200); pinMode(capturePin, INPUT_PULLUP); camera_config_t config; config.ledc_channel = LEDC_CHANNEL_0; config.ledc_timer = LEDC_TIMER_0; config.pin_d0 = Y2_GPIO_NUM; config.pin_d1 = Y3_GPIO_NUM; ...
.ledc_timer = LEDC_TIMER_0, .ledc_channel = LEDC_CHANNEL_0, .pixel_format = PIXFORMAT_JPEG, //可选格式:YUV422,GRAYSCALE,RGB565,JPEG .frame_size = FRAMESIZE_QVGA, //设置帧大小为 QVGA,建议在非 JPEG 模式下不使用超过 QVGA 的大小 ...
LEDC Yes Yes Yes Yes Motor PWM No Not Supported Not Supported Not Supported Pulse Counter No No No No RMT Yes Yes Yes Yes SDIO No No No No SDMMC Yes Not Supported Not Supported Yes Timer Yes Yes Yes Yes Temp. Sensor Not Supported Yes Yes Yes Touch Yes Yes Not Supported...