A maximum number of PWM channels (Pins) are available on the ESP32 - 16 channels, but only 8 different PWM frequencies are available, the remaining 8 channels must have the same frequency. On the other hand, 16 independent PWM duty cycles are possible at the same frequency. See more examp...
一、硬件设备：1、esp32 esp32 2、tft屏幕1.8寸 （不带触摸屏） tft屏幕（1.8寸）注意该款tft芯片st7735（不懂驱动芯片的内存可以咨询卖家） 在TFT_eSPI设置中需要 tft屏幕主要参数列表 3、杜邦线（双头母） 6~7根 二、连接屏幕 （这里连接GPIO脚可以配合后面下一步设置看，为了方面这里直接连接TFT_eSPI默...
< Set the number of consecutive and identical characters received by receiver which defines a UART pattern*/ #define BUF_SIZE (1024) #define RD_BUF_SIZE (BUF_SIZE) static QueueHandle_t uart0_queue; esp_mqtt_event_handle_t event; esp_mqtt_client_handle_t client; static void uart_event_t...
Model Number CD4066BM96 Description Four-way Analog Switch Package / Case SOIC-14 Mounting Type Surface Mount Power supply voltage (DC) 3V ~ 18V Number of output interfaces 4 Contact type SPST Number of channels 4 Number of pins 14
This is unlikedigitalPinToInterrupt, which returns the same pin number. There is also no check that the value is greater or equal to 0 These functions assume that all pins with the same type of functions are all sequentially located.
(GATTS_TABLE_TAG, "The number handle =%x\n",param->add_attr_tab.num_handle); if (param->add_attr_tab.status != ESP_GATT_OK){ ESP_LOGE(GATTS_TABLE_TAG, "Create attribute table failed, error code=0x%x", param->add_attr_tab.status); } else if (param->add_attr_tab.num_handle ...
gpio_num:ConfigureGPIOpins number,it should beGPIOnumber.If you want tosetdirectionofe.g.GPIO16,gpio_num should beGPIO_NUM_16(16);mode:GPIOdirection 获取GPIO电平状态 int gpio_get_level(gpio_num_t gpio_num) GPIO get input level.
gpio_num: Configure GPIO pins number, it should be GPIO number. If you want to set direction of e.g. GPIO16, gpio_num should be GPIO_NUM_16 (16); mode: GPIO direction 获取GPIO电平状态 int gpio_get_level(gpio_num_t gpio_num) ...
[256];//register array available to masterbooldebug_read_esp =false;booldebug_read_all =false;// only will read data coming to ESP32, good to determine if communication existsbooldebug_write =false;constunsignedintnumSamples =40;// number of samples to take for each channelvoidsetup(){ ...
static const i2s_port_t i2s_num = I2S_NUM_1; // i2s port number,注意,如果是用内部DAC必须用I2S_NUM_0 unsigned const char* TheData; uint32_t DataIdx=0; // index offset into "TheData" for current data t send to I2S struct WavHeader_Struct ...