If you get an error message in your serial Monitor while reading the temperature and humidity from the DHT11, DHT22, AM2302 or AM2301 sensor, follow the next steps to see if you can make it work. “Failed to read from DHT sensor!” or Nan readings If yourDHT11/DHT22sensor returns t...
开发者ID:jeffegg,项目名称:libsigrok,代码行数:35,代码来源:protocol.c 示例10: get_dht11 ▲点赞 1▼ intget_dht11(serial *s,struct DHT11* data){intstate=0;// static int count_err=0; //连续错误次数charbuffer[128]; serial_write(s,"DHT11"); usleep(90000);serial_read(s, buffer,'\n...
If you’re trying to read the temperature and humidity from the DHT11, DHT22, AM2302 or AM2301 sensor and you get an error message in your Serial Monitor, follow the next steps to see if you can make your sensor work. Learn how to fix the Failed to read from DHT sensor error. If...
# 需要導入模塊: import Adafruit_DHT [as 別名]# 或者: from Adafruit_DHT importread_retry[as 別名]defread_handler(vpin):# DHT22dht22_sensor = Adafruit_DHT.DHT22# possible sensor modifications .DHT11 .DHT22 .AM2302. Also DHT21 === DHT22humidity, temperature = Adafruit_DHT.read_retry(dht...
DHT11 数字温湿度传感器是一款含有已校准数字信号输出的温湿度复合传感器,内部由一个 8 位单片机控制一个电阻式感湿元件和一个 NTC 测温元件。DHT11 虽然也是采用单总线协议,但是该协议与 DS18B20 的单总线协议稍微有些不同之处。 相比于 DS18B20 只能测量温度,DHT11 既能检测温度又能检测湿度,不过 DHT11 的精度...