DHT22 Pinout – Sensor Module ( Datasheet PDF )

Part Number : DHT22

Function : Digital-output relative humidity & temperature sensor/module

Manufacturers : Aosong Electronics

Image : DHT22 Image
AM2302 Image : AM2302 Image
DHT22 also named as AM2302

DHT22 output calibrated digital signal. It utilizes exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability.Its sensing elements is connected with 8-bit single-chip computer.

Every sensor of this model is temperature compensatedand  calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of programme in OTP memory, when the sensor is detecting, it will cite coefficient from memory. Small size & low consumption & long transmission distance(20m) enable DHT22 to be suited in all kinds of harsh application occasions.

Single-row packaged with four pins, making the connection very convenient.

The DHT22 is a basic, low-cost digital temperature and humidity sensor. 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). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.

Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the right most pin to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!


DHT22 Pinout

DHT22 Datasheet

DHT22 Datasheet PDF

DHT22 pdf

Reference AM2302 PDF


Thanks for Mark Seiffert


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GST5009LF Datasheet PDF – 1000 Base-T Magnetics Module

Part Number : GST5009LF

Function : 1000 Base-T Magnetics Module

Package : SOP 24 Pin type

Manufactures : Bothhand USA ( http://www.bothhandusa.com/ )

Images :
GST5009LF datasheet

Description :

This is 1000 Base-T Magnetics Module.


Features :

1. Designed for long haul gigabit Ethernet 1000 BASE-T, full duplex applications.

2. Supports 4 pairs of category 5 UTP cable.

3. Cable interface for isolation and low common mode emissions.

4. Compliant with IEEE 802.3ab standard for 1000 BASE-T.

5. Comply with RoHS requirements-whole part No Cd, No Hg, No Cr6+, No PBB and PBDE and No Pb
on external pins.

6. Operating temperature range: 0℃ to +70℃.

7. Storage temperature range: -25℃ to +125℃.


GST5009LF pinout schematic


GST5009LF Datasheet


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