gpio_set_level(GPIO_MOSI, value); } voidvSetSCK(intvalue) { //gpio_set_direction(GPIO_SCLK, GPIO_MODE_INPUT); //写这个或下一个 // 1为高电平,0为低电平 //gpio_set_level(GPIO_SCLK, value); gpio_reset_pin(GPIO_SCLK); gpio_set_direction(GPIO_SCLK, GPIO_MODE_INPUT); gpio_set_le...
esp_err_t gpio_reset_pin(gpio_num_t gpio_num)设置为上拉、禁用输入、禁用输出参数： gpio口号返回： ESP_OK 3. 设置 gpio 方向 gpio_set_direction(gpio_num_tgpio_num, gpio_mode_tmode)gpio_mode_tmode值：GPIO_MODE_DISABLEGPIO_MODE_INPUTGPIO_MODE_OUTPUTGPIO_MODE_OUTPUT_ODGPIO_MODE_INPUT_OUTP...
ESP32-IDF编程中,通过gpio_config初始化 GPIO,该函数需要传入一个gpio_config_t类型的结构体,该结构体在driver/gpio.h中定义,原型如下: typedef struct { uint64_t pin_bit_mask; /* GPIO引脚的位掩码 */ gpio_mode_t mode; /* GPIO引脚的工作模式 */ gpio_pull_mode_t pull_up_en; /* GPIO引脚的...
esp32定时器计时 esp32 定时器中断,一、GPIO常用函数esp_err_tgpio_reset_pin(gpio_num_tgpio_num)将gpio重置为默认状态(选择gpio功能、启用上拉并禁用输入和输出)。备注此功能还将此引脚的IOMUX配置为GPIO功能,并断开通过GPIO矩阵配置的任何其他外设输出。参数gpio_nu
*/gpio_reset_pin(BLINK_GPIO);/* Set the GPIO as a push/pull output */gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);while(1) {/* Blink off (output low) */printf("Turning off the LED\n");gpio_set_level(BLINK_GPIO,0);vTaskDelay(1000/ portTICK_PERIOD_MS);/* Blink on (outp...
#define Key2_GPIO GPIO_NUM_19//Deep_sleepstatic TaskHandle_t Deep_Sleep_Task_Handle=NULL;//深度睡眠句柄static TaskHandle_t APPTaskCreat_Handle=NULL;//任务句柄//GPIO初始化voidGPIO_init(){gpio_reset_pin(BLINK_GPIO);gpio_reset_pin(BLINK_GPIO22);gpio_reset_pin(GPIO_NUM_23);gpio_reset_pin...
#define NRF_PIN_NUM_CS 10 SPI2初始化代码如下: static void NrfSpiInit(void) { esp_err_t ret; gpio_reset_pin(NRF_PIN_NUM_CS); gpio_set_direction(NRF_PIN_NUM_CS, GPIO_MODE_OUTPUT); gpio_set_level(NRF_PIN_NUM_CS, 1); spi_bus_config_t spi_bus_config = {.sclk_io_num = NRF...
gpio_reset_pin函数将gpio引脚重置为默认状态(选择gpio功能,启用上拉并禁用输入和输出)。 重新编译、烧写、执行。 唤醒电流(并联mA表) deep sleep电流(断开mA表) 电流小于10uA。 6. 添加一个LED作为gpio的负载 6.1 添加gpio负载 添加对电源的负载(灌电流 sink current) GPIO_NUM_2,GPIO_NUM_4和GPIO_NUM_15...
Another pin is GPIO0, one of the strapping pins. If IO0 is held low during power-up or reset, the ESP32 goes into bootloader mode, which is useful for flashing new firmware. Here’s an example Arduino code that resets the ESP32 every 5 seconds: void setup() { // Your setup code...
Which GPIO pin can be used as a digital input-output pin? Which GPIO pin can be used as an analog pin? And which pin should not be used to use this board safely? You will get the answer to these questions in this article. So now let’s begin with the introduction of GPIO pins ...