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Dimensions 40mm x 20mm x 8mm
Weight G.W 8g
Battery Exclude
Part List
Grove - Temperature & Humidity Sensor 1
Description
This temperature & humidity sensor provides a pre-calibrated digital output. A unique
capacitive sensor element measures relative humidity and the temperature is measured by a
negative temperature coefficient (NTC) thermistor. It has excellent reliability and long term
stability. Please note that this sensor will not work for temperatures below 0 degree.
Features
Relative Humidity and temperature measurement
Full range temperature compensation Calibrated
Digital signal Long term stability
Long transmission distance
Low power consumption
Documents
For all Grove users (especially beginners), we provide you guidance PDF documents. Please
download and read through Preface - Getting Started and Introduction to Grove before your
using of the product.
Please visit our wiki page for more info about this product. It will be appreciated if you can
help us improve the documents, add more demo code or tutorials. For technical support,
please post your questions to our forum
Grove - Temperature & Humidity
Sensor
SKU 101020011
IN STOCK 42 Available
1
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USD
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Documents
WIKI
DHT11 datasheet
Temperature Humidity Eagle File
Library
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arpita on Mar 21,2017
Can I use this for monitoring soil moisture for plants?
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ASHWIN PAJANKAR on Oct 19,2016
I am using the DHT11 sensor. However it only reads the integer temperature values with Python and
Raspberry Pi. Please do let me know how to retrieve fractional value.
0
I'm curious to know how it collects the data for two sensors on one analog pin? I can see that it works but
Questions and Answers
Have a question about this? Ask people who own it.
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ae on Apr 14,2017 15:15 PM
Hello, this sensor is used for get temp&humi of the air. Thanks.
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Jacket Chen on Oct 20,2016 10:44 AM
Alex Satrapa on Oct 20,2016 10:50 AM
A Wajih on Nov 14,2016 22:32 PM
Hi,you can't program it.This product is just a charger.
The USB data is passed through, you can program your USB-connected device by plugging the Rider into your
programmer's USB port. So the Teensy/whatever stays permanently connected to the Rider.
The DHT11 does not provide any data for the "fractional" parts of the stream for both properties - temperature
and humidity.
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Joshua Pritt on Oct 19,2016
just want to know how.
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on Oct 19,2016
Hello, I would like to ask, if it is possible to measure decimal value of temperature, or only entire value?
Thank you for answer.
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Dineshkumar Balasubramanian on Oct 19,2016
Can i know what is the max temp it can hold up. Or at wat temp this sensors melts
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Mike Brady on Oct 19,2016
Can you provide more details on the timing intervals used by the sensor to a) set up the communicationb)
send each bit of dataThe only 'spec' I can find is the statement 'It costs 5mS for single time
communication'.Do you have a more de
0
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Deray Wu on Oct 20,2016 10:42 AM
A Wajih on Nov 15,2016 01:30 AM
Hello,sorry for the late reply . Both the top layer and bottom layer copper fill connected to GND. We are sorry we
didn't test like this before , thanks for you understanding.
The datasheet at http://www.micropik.com/PDF/dht11.pdf explains it all. The analog pin is used to return the
return the data from the sensors (a little bit of nit-picking on my part, please do not mind). The measurements are
done further upstream in the circuit.
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Deray Wu on Oct 20,2016 10:42 AM
A Wajih on Nov 14,2016 22:34 PM
The way to use it is to pick off the plastic connector of solar panel.Very sorry about this .
There is no "decimal" value being returned by the sensor (for DHT11 devices). It will always be zero.
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Deray Wu on Oct 20,2016 10:42 AM
Jacket Chen on Oct 20,2016 10:47 AM
A Wajih on Nov 15,2016 01:31 AM
yes,it compatible.
Hey Dineshkumar,you can refer to the wiki of this module, and you can see the maximum temp is 50 °C.
Also, keep the lower limit for the temperature, 0 degrees C, in perspective too (if applicable to your tests).
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Yuri Qiu on Oct 20,2016 10:41 AM
Jacket Chen on Oct 20,2016 10:42 AM
A Wajih on Nov 15,2016 01:32 AM
Yes??? you are totally right.
hi,the Sensitivity of Temperature is 1?°C ,so we can't get the decimal part of temperature.And the Sensitivity of
Humidity is ?±1% .More detail ,watching wiki please.
http://www.micropik.com/PDF/dht11.pdf for your reading pleasure. Regards.
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Iqbal on Oct 19,2016
I've used sketch from adafruit, etc. also as in the wiki but didn't work, someone said those sketches don't
match for my circuit, the sketches match for simple circuit like Uno, Mega, etc. VCC is 3.8V so the power is
fine. I can read analog data from s
0
Dhammika Kariyawasam on Oct 19,2016
I need to interface this with 430 launchpad. Can you please let me know how to do this. I do not see any
generic way of reading the output signal other than Arduino based library.
0
Woo Seok Ko on Oct 19,2016
I'm wondering if I can use this with arduino Uno, if I can how can i connect this with arduino uno
0
Mike Brady on Oct 19,2016
Runs ok when powered by USB but doesn't work when board is powered by lithium battery.It then always
fails on 'start condition 2'.Ideas?
12
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Deray Wu on Oct 20,2016 10:42 AM
Yes,it is.
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Nir Azuelos on Oct 20,2016 10:41 AM
Dhammika Kariyawasam on Oct 20,2016 10:44 AM
Thanks, I posted a more elaborate question on the forums: http://www.seeedstudio.com/for...
I do not want to transplant the code, but need a generic way of communicate with the sensor irrespective of the
controller I'm going to use. Datasheet would be very useful
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Yuri Qiu on Oct 20,2016 10:41 AM
Jacket Chen on Oct 20,2016 10:43 AM
Hi there, correct. But down to 3.3v it can't do that.
Yes, you can.you can use jumper wire to connect them together.GND--GND,VCC--VCC,NC--No connection,SIG--A0.
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Yuri Qiu on Oct 20,2016 10:41 AM
Jacket Chen on Oct 20,2016 10:43 AM
Hi there, yes it is ok.If you use input with 5v.And about output it will change to 5V from battery.
Hi,Dear.This battery provides power supply for RTC, but can't act as the power source of stalker.
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