Aosong DHT11
Temperature and humidity Sensor
| Part No. | DHT11 |
|---|---|
| Datasheet | DHT11 Download |
| Manufacturer |  Aosong |
| Description | Temperature and humidity Sensor |
| Buy | Stock & Price |
ELECTRICAL CHARACTERISTICS
Power supply: DC 3.5～5.5V Supply Current: measurement 0.3mA standby 60μ A Sampling period: more than 2 seconds PinDESCRIPTION
1, the VDD power supply 3.5～5.5V DC 2 DATA serial data, a single bus 3, NC, empty pin 4, GND ground, the negative power Aosong(Guangzhou) Electronics Co.,Ltd. TEL：020-36042809 / 36380552 -2- 6、Typical circuit Microprocessor and DHT11 of connection typical application circuit as shown above, DATA pull the microprocessor I / O ports are connected. 1. Typical application circuit recommended in the short cable length of 20 meters on the 5.1K pull-up resistor, the resistance of greater than 20 meters under the pull-up resistor on the lower of the actual situation. 2. When using a 3.5V voltage supply cable length shall not be greater than 20cm. Otherwise, the line voltage drop will cause the sensor power supply shortage, caused by measurement error. 3. Each read out the temperature and humidity values are the results of the last measurement...
