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结果页火焰传感器(3针) ADC采样与火焰检测代码例程
在 知识库 中找到 8 个匹配结果。
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8 个 树莓派 Pico 代码例程 — MicroPython + C SDK + PIO gpio_init(LED_PIN);
gpio_set_dir(LED_PIN, GPIO_OUT);
gpio_init(BTN_PIN);
gpio_set_dir(BTN_PIN, GPIO_IN);
gpio_pull_up(BTN_PIN);
gpio_set_irq_enabled_with_callback(BTN_PIN, GPIO_IR… 3% 火焰传感器(3针) ADC采样与火焰检测代码例程 void flame_task(void *pvParameters) {
flame_sensor_init();
// 建立基线
int64_t baseline_sum = 0;
for (int i = 0; i < 100; i++) {
int raw;
adc_oneshot_read(adc_handle,… 3% 进阶：DMA + ADC 多通道连续采集 /* ══════════════════════════════════════
* 打印采样结果
* ══════════════════════════════════════ */
static void print_results(void) {
char msg[256];
int len = snprintf(msg, sizeof(msg),
"… 3% 光敏电阻传感器模块代码例程 # 光敏电阻传感器模块代码例程
## 1. STM32 HAL 库驱动
```c
// ldr_sensor.h
#ifndef __LDR_SENSOR_H
#define __LDR_SENSOR_H
#include "main.h"
/* 按实际接线修改 */
#define LDR_DO_PORT GPIOB
#define LDR_DO_PIN GPIO_PI… 3% STM32F103C8T6 Blue Pill 代码例程 static void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;… 3% NTC热敏电阻测温模块 — 代码例程 void loop() {
int adc = analogRead(A0);
int16_t tempTimes10 = getTempFromTable(adc);
Serial.print("ADC: "); Serial.print(adc);
Serial.print(" → 温度: ");
Serial.print(tempTimes10 / 10.0, 1);… 3% MicroPython 代码例程 ```python
from machine import Pin, PWM, ADC
import time
# --- 输出测试：闪烁 LED ---
led = Pin(2, Pin.OUT)
for i in range(5):
led.toggle()
time.sleep(0.3)
# --- PWM 呼吸灯 ---
pwm = PWM(Pin(2), freq=1… 2% 火焰传感器(4针) 双模式检测与中断触发代码例程 ## 四、ESP-IDF - 双路检测+FreeRTOS任务通知
```c
// esp32_flame_4pin.c
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_adc/adc_oneshot.h"
#define FLAME_DO_GPIO… 2%