Gravity: DHT22 Temperature & Humidity Sensor
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Project 1: Environmental Monitoring System Based on OBLOQ-IoT Module
This product is mainly applied in electronic laboratory to monitor and control indicators such as temperature, humidity, light and dust, and timely upload them to the cloud data space to achieve remote monitoring and control of dehumidifier, air purifier, exhaust fan and dimmable light, etc. in the laboratory.
Project 2: The Ultimate IoT Sensor Box for Smart Offices and Buildings
Introduction: Improve your flex desk office experience with this innovative IoT sensor box
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IntroductionDHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound that has been calibrated digital signal output of the temperature and humidity sensors. Application of dedicated digital modules collection technology and temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability.
The sensor includes capacitive sensor wet components and high-precision temperature measurement devices and is connected to a high-performance 8-bit microcontroller. The product has excellent quality, fast response, strong anti-jamming capability, and cost-effectiveness.
Standard single-bus interface, system integration quick and easy. Its small size, low power consumption, and signal transmission distance of up to 20 meters make it the best choice of all kinds of applications and even the most demanding applications.
DHT22 has higher precision and can replace the expensive imported SHT10 temperature and humidity sensor.
It can measure the environment's temperature and humidity to meet high demand.
The product has high reliability and good stability. If it's used and combined with a special sensor Arduino expansion board, it will be easily implemented the interactive effect related to the temperature and humidity perception.
Note: DHT22 digital temperature and humidity sensor is designed for analog sensor interfaces. The analog port will be used as the digital which will not occupy the original digital port of the Arduino. The lines of the sensor can transform the analog function to digital that can be used on the digital port.
DHT22 temperature sensor tutorial:
|Name||Gravity: I2C Non-contact IR Temperature Sensor For Arduino||Gravity: Analog LM35 Temperature Sensor For Arduino||Gravity: Waterproof DS18B20 Sensor Kit||Gravity: Analog High Temperature Sensor|
|Range of temperature measurement||0℃～65℃||0℃～100℃||-55℃～125℃||-55℃～125℃||-55℃～125℃|
|Precision of temperature measurement||0.01℃||0.5℃||0.5℃||0.5℃||0.5℃|
|Data type||Digit||Digit||Digit (unibus)||Digit (unibus)||analog|
BMP280 Barometer sensor supports Arduino and can measure both temperature and atmospheric pressure.
It can be applied to enhance GPS navigation & coordinate with IMU sensor to realize indoor and outdoor navigation. Compared to the last generation BMP180 barometer sensor, it has a lower power consumption, higher resolution and higher sampling frequency.
Application: Enahnced GPS navigation (e.g. time-to-first-fix improvement, dead-reckoning, slope detection) Indoor navigation (floor detection, elevator detection) Outdoor navigation, leisure and sports applications Weather forecast Health care applications (e.g. spirometry) Vertical velocity indication (e.g. rise/sink speed)
$A Temperature Sensor can be used to detect ambient air temperature, the output voltage is proportional to temperature. It has good linearity and high sensitivity.
Application:Medical treatments Personal controls Industrial controls Aeronautics and astronautics.
Waterproof temperature sensor DS18B20 is widely used in many fields, such as soil temperature measurement, hot tank temperature control etc. It supports multipoint measurement.
Constant temperature control Industrial system Consumer electronics Thermistors Refrigerators Barns Tanks Telecommunication rooms Power communication rooms
A Temperature Sensor can be used to detect ambient air temperature. It can be connect to three-wire in parallel to achieve multipoint temperature measurement.
Application: Constant temperature control Industrial system Consumer electronics Thermistors Refrigerators Barns Tanks Telecommunication rooms Power communication rooms Cables etc.
It used a PT100 resistance type high temperature probe to measure a temperature range between 30-350°C.
Application: Especially for high precision of temperature measurements. Medical treatments Motors Industrials Temperature counts Resistance counts
|Name||Gravity: i2C BMP280 Barometer Sensor||Infrared Thermometer Module||Gravity:SHT1x Humidity and Temperature Sensor||DHT22 Temperature and Humidity Sensor|
|Operating Temperature||-40℃～125 ℃||-10℃~50℃||-40℃~128.8℃||0℃～50℃||-20℃-80℃|
|Range of temperature measurement||-70.01℃～382.19℃||-33℃～220℃||-40℃~128.8℃||0℃～50℃||-40℃-80℃|
|Precision of temperature measurement||0.5℃||2℃(full range)||0.5℃||2℃|
|Data type||Digit||Digit||Digit (unibus)||Digit (unibus)||Digit (unibus)|
|Range of humidity measurement||NA||NA||0-100%RH||20-90%RH||0-100%RH|
non-contact measurement uses infra-red radiation to measure the temperature and does not require a direct touch. Additionally, this method of measurement can be read quickly and accurately. This module has a FOV of 35° Wave length 5.5um-14um
Application: Environmental monitor
Home automation Automobile electronics
It is a long-distance thermometer specially designed for a high sensitivity, high accuracy, low noise, and low power consumption. Wave length:5um-14um This module has a FOV of 26.6°x 2 = 53.2°
Medical equipment Fire alarm systems telecommunications
It consists of 1 capacitive humidity module and 1 energy gap temperature module, perfect integration of 1 14bit A/D converter and 1 2-wire digital interface.
CMOSens technology makes it of advantages such as low power consumption, fast response, strong anti-jamming capacity etc.
Humidity regulator Dehumidifier
Tests and measurements
This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages. Its signal transmission distance up to 20 meters. These features make it a variety of applications and even the most demanding applications.
It contains a resistive element and a sense of wet NTC temperature module. Compared to DHT11, it has smaller humidity deviation, faster response, stronger anti-interference ability and higher cost performance
Medical equipment HVAC
Meteorology Humidity regulator Dehumidifier
Tests and measurements