1. can detect ambient humidity and temperature
2. sensor DHT11
3. humidity measuring range: 20% -95% (range 0 degrees -50 degrees) and humidity measurement error: + – 5%
4. temperature measuring range: 0 degrees -50 degrees temperature measurement error: + – 2 degrees
4. Operating Voltage 3.3V-5V
5. Output Type Digital Output
6. has a fixed bolt hole for easy installation
7. small plates PCB size: 3.2cm * 1.4cm
8. Power indicator (red)
9. Each weighs about 8g
Two module interface specification (3-wire)
1. VCC 3.3V-5V external
2. GND External GND
3. DO small board switch digital output interface connected to the microcontroller IO port
