Sensor Humidity and temperature DT11

See photos at right: Connections are (V)oltage, (S)ignal, (G)round. On the Electronic Brick: (S)Signal, (V)Voltage,(G)Ground

NOTE: Needs 4.7K to 10K pullup resistor from +5 to Signal pin (Electronic Brick version has it built-in). Connect to Arduino Digital pin, not Analog pin. (Manufacturer says this about distance/pullup): When the connecting cable is shorter than 20 metres, a 5K pull-up resistor is recommended; when the connecting cable is longer than 20 metres, choose a appropriate pull-up resistor as needed.
 

Specifications:

- Humidity measuring range: 20% ~ 9 0% RH (0-50 ? temperature compensation)
- Temperature measuring range: 0 ~ +50 ?C ;

DTH-11 BRICK

- Humidity measuring accuracy: 5.0% RH
- Temperature measurement accuracy: 2.0 C
- Response time: (Updated by Rob Tillaart: now < 50 ms)
- Low power consumption
Features
.. single wire digital interface ( the most simple system integration, ultra-low prices )
.. ultra-small size ( 12X15.5X5.5 mm )
.. high reliability
.. optimized long-term stability
 

Test Software Sketch for DHT11 (Credits: THANKS to Rob Tillaart)

DETAILS: Before you can use an "Arduino Software Library", you must make it available by copying it into the correct "libraries" folder. See Libraries HowTo HERE
Here is a .ZIP file available with the DHT sensor library for easier installation:

NOTE: Lots of good information about the DHT software library on the Arduino "Playground" site HERE.
NOTE: After you install the DHTLIB Library, look in EXAMPLES for similar test sketches for DHT21, DHT22
NOTE: Set your Serial Monitor (click for Info) to 115200 (Lower right of window)

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