Download address: http://pan.baidu.com/share/link?shareid=459215&uk=2302102993

Description of one baby
It can detect the humidity and temperature of the surrounding environment
DHT11 was used as the sensor
3 humidity measurement range: 20% - 95% (0-50 ℃) humidity measurement error: + - 5%
4 temperature measurement range: 0-50 ℃, temperature measurement error: + - 2 ℃
4 working voltage 3.3v-5v
5 output form digital output
6 with fixing bolt hole, easy to install
7 small PCB size: 3.2cm * 1.4cm
8 power indicator (red)
Each set weighs about 8g

Two module interface description (3-wire system)
1 VCC external connection 3.3v-5v
2 GND external GND
3 do small board switch digital output interface connected with IO port of single chip microcomputer

3. Delivery list

Three delivery list 1 as shown in the figure, one DHT11 module (passed the test)
3 pieces of 2 20cm DuPont wire