Aug 01, 2016 dht22 datasheet pdf sensor module, dht22 datasheet, dht22 pdf, dht22 pinout, dht22 data, circuit, ic, manual, substitute, parts, schematic, reference. Here is a tutorial on how to retrive the sensor measurement with a arduino board. Well cover the lowercost dht11 as well as the dht22 and am2302. When you look at the datasheet of the dhtxx sensors, you will see that they measure the relative humidity rh of the air and not the absolute humidity. Temperature and humidity module dht11 product manual. Dht11 is a digital sensor consisting of two different sensors in a single package. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent longterm stability. Applying the dht11 sensor beyond its working range stated in this datasheet can. The humidity sensing element consists of two electrodes with a moisture holding substrate in between.
Datasheet search engine for electronic components and semiconductors. Dht11 datasheet, dht11 pdf, dht11 pinout, equivalent, replacement humidity and temperature sensor sunrom, schematic, circuit, manual. This module is based on dht11, a high performance temperature and humidity sensor, ensuring high reliability and excellent stability. If you open up a dht11 or dht22am2302 sensor, you will see that it contains two sensing elements. Dht11 digital temperature and humidity sensor is a composite sensor contains a. Were sorry but dcfrontend doesnt work properly without javascript enabled. Its sensing elements is connected with 8bit singlechip computer every sensor of this model is temperature compensatedand calibrated in accurate calibration chamber and the. Dht11 datasheet pdf pinout humidity and temperature. You can do this by reading the temperature property which returns temperature in degrees celsius. Dht22 utilizes exclusive digital signal collecting technique and humidity sensing technology and can ouptut calibrated digital signal. Contribute to adidaxdht11 development by creating an account on github. Temperature and humidity module department of electrical and. Please refer to 3 of conditions minimum typical maximum.
Application of a dedicated digital modules collection technology and the temperature and humidity sensing. Dht11 humidity and temperature sensor the dht11 is a basic, lowcost digital temperature and humidity sensor. Within the warranty period, the product was confirmed that. The dht11 uses an internal thermistor and a capacitive humidity sensor to determine environment conditions, an internal chip is responsible for converting readings to a serial digital signal.
Dht11 is a commonly used temperature and humidity sensor. Feb 19, 2018 the sensor dht11 can measure temperature and humidty in a room. In the case of two ds18b20 sensors they have to be identified in order to assign them. This little sensor looks an awful lot like the popular dht11 dht22 temperature and humidity sensors, but unlike classic. So, while this sensor does seem to work, its not recommended for anything where you care about any. Dht22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. A highperformance 8bit microcontroller is connected. This module consist of a dht11 digital humidity and temperature sensor and a 1 k. In this tutorial, i will show you how to interface dht11 humidity sensor with pic microcontroller and how to measure temperature and humidity with dht11 sensor. Dht11 temperature and humidity module open impulse.
Pdf dht11 datasheet, dht11 fiche technique, microbot humidity and temperature digital sensor, equivalent, fonction. Dht12 digital temperature and humidity sensor is a calibrated digital output record of temperature and humidity, dht11 the upgrade product. The sensor comes with a dedicated ntc to measure temperature and an 8bit microcontroller to output the values of temperature and humidity as serial data. Datasheet sht1x sht10, sht11, sht15 humidity and temperature sensor ic fully calibrated digital output low power consumption excellent long term stability smd type package reflow solderable dimensions figure 1. Those sensing elements are precalibrated and the output is provided as a digital signal. Dht11 datasheet, dht11 pdf, dht11 data sheet, dht11 manual, dht11 pdf, dht11, datenblatt, electronics dht11, alldatasheet, free, datasheet, datasheets, data sheet. The sensor comes with a dedicated ntc to measure temperature and an 8bit microcontroller to. One capacitor valued 100nf can be added between vdd and gnd for wave filtering.
At this point youre all set and ready to start reading the temperature and humidity. Its technology ensures high reliability and excellent longterm stability. Dht11 datasheetpdf list of unclassifed manufacturers. Applicationspecific digital temperature and humidity sensor module and semiconductor, ensure high reliability and excellent longterm stability. These sensors are very basic and slow, but are great for hobbyists who want to do some basic data logging. The datasheet mentions it has 3% humidity accuracy and 0. The dht11 or dht22am2302 sensor is connected in the same way as before.
Dht11 datasheet pdf pinout humidity and temperature sensor. The lines of the sensor which can transform the analog function to digital that can be use on digital port. The sensor contains an ntc negative temperature coefficient temperature sensor, a resistivetype humidity sensor and an 8bit microcontroller to convert the analog signals from these sensors and produce a digital output. It can be easily interfaced with pic microcontroller by using only one inputoutput pin. Dht11 digital temperature and humidity sensor is a calibrated digital signal output of the temperature and humidity combined sensor. Nov 04, 2016 this module consist of a dht11 digital humidity and temperature sensor and a 1 k. It utilizes exclusive digitalsignalcollectingtechnique and humidity sensing technology, assuring its reliability and stability. This sensor includes a resistivetype humidity measurement. The dht11 uses just one signal wire to transmit data to the arduino. Temperature and humidity measurement with sensor dht11.
The temperature is measured using a negative temperature coefficient thermistor ntc, and the relative humidity is measured using a capacitive sensor. Applying the dht11 sensor beyond its working range stated in this datasheet can result in 3%rh signal shiftdiscrepancy. Dht11, temperature sensor, capacitive sensor manufacturer supplier in china, offering dht11 digital temperature and humidity sensor capacitive sensor, mlx90614esfdci mlx90614esfdci000tu infrared digital temperature sensor, ax3117esa ax3117ab stepdown switching regulator with pwmcontrol and so on. China dht11 digital temperature and humidity sensor. I have a dht11 reading internal humidity which produces a temperature reading simply. Dht11dht22 sensors with arduino tutorial 2 examples. Drawing of sht1x sensor packaging, dimensions in mm 1mm 0. We have two versions of the dht sensor, they look a bit similar and have the.
When power is supplied to sensor, dont send any instruction to the sensor within one second to pass unstable status. How do dht11 and dht22am2302 temperature and humidity sensors work. Dht11, dht22 and am2302 sensors adafruit industries. Pdf dht11 datasheet, dht11 fiche technique, aosong temperature and humidity module, equivalent, fonction. The sensor comes with a dedicated ntc to measure temperature and an 8bit. The dht11 sensor is compatible with most of the popular microcontroller development boards, like arduino.
How to set up the dht11 humidity sensor on an arduino. Raspberry pi dht11 humidity and temperature sensor interface. Thats not impossible but if one sensor fails it is a major task to find the new identity and write it into the code not possible if you dont know code and havent an ide. Dht22 digital temperature and humidity sensor is designed for analog sensor interfaces. Dht11 digital temperature and humidity sensor is a composite sensor contains a calibrated digital signal output of the temperature and humidity. Its fairly simple to use, but requires careful timing to grab data. Publishes the technical specifications of the product data sheet shall prevail. This board is a breakout board for the dht11 sensor and gives a digital output that is. Ks0034 keyestudio dht11 temperature and humidity sensor. So, while this sensor does seem to work, its not recommended for anything where you care. Resisitivetype humidity and temperature modulesensor. Each dht11 sensor is strictly calibrated in the laboratory that is extremely.
Dht11 datasheet, dht11 pdf, dht11 data sheet, dht11 manual, dht11 pdf, dht11. This dht11 temperature and humidity sensor is a composite sensor which contains a calibrated digital signal output of the temperature and humidity. High precision capacitive type full range temperature compensated relative humidity and temperature measurement c alibrated digital signal o utstanding longterm stability e xtra components not needed l ong transmission distance, up to 100 meters. The analog port will be used as the digital which will not occupy the original digital port of the arduino. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin no analog input pins needed. The dht11 sensor can recover to the calibrated status gradually when it gets back to the normal operating condition and works within its range. The sensor dht11 can measure temperature and humidty in a room. Temperature humidity module, dht11 datasheet, dht11 circuit, dht11 data sheet. It uses a dedicated digital modules capture technology and the temperature and humidity sensor technology to ensure that products with high reliability and excellent longterm stability.
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