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**Humidity and temperature sensor**\\
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**SHT15**\\
This is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and\\ temperature sensor is fully calibrated and offers high precision and excellent long-term stability at low cost.\\ The digital CMOSens Technology integrates two sensors and readout circuitry on one single chip.\\
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{{:sfe-sht15-humidity-temperature-sensor.jpg::?&300 | SHT15}}\\
{{:datasheet-humidity-sensor-sht1x.pdf:| datasheet}}\\
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{{:sht15-arduino-hookup.png?&300 :| SHT15 hookup}}\\
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{{:sht15_arduino_hookup_code_.zip| sht15 arduino hookup code}}\\
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**DHT11**\\
Another humidity and temperature sensor is the DHT11\\
{{ :dht11.jpg?300|DHT11}}\\
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Here is an example how to read this sensor with an arduino\\
{{ :read_dht11.zip |read_dht11.zip }}\\
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This is the library you need. In the Arduino programming environment go to sketch/include library/Add .ZIP library to include this library.\\
{{ ::dht11.zip | DHT11 Arduino library}}\\
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And how to connect it to an arduino:\\
{{ ::arduino-and-dht11_bb1_3vsonloxcb.png?400|}}\\
**Do not swap + and - because this will destroy the sensor!**\\ 
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{{ ::dht11-technical-data-sheet-translated-version-1143054.pdf |DHT11 datasheet}}\\