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2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15

2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15

Q: Does this include the resistor you'd normally have to wire in with a standalone DHT22?

Yes, this does actually include the resistor. The DHT22 itself is the white part, and has four pins coming out — one of which is not meant to be used. But in this product, those four pins (including the unused one) are soldered into another board (the black thing you see in the picture coming out of the white thing), which has a couple surface-mounted components, and three open pins for your connections. One of the surface-mounted components is a resistor with code "512" on it, which translates to 5.1kΩ. The other is a capacitor, but I can't see any code on it. The manufacturer of the DHT22 recommends a 100nF capacitor between VDD and GND "for wave filtering". Anyway, I connect these directly to the 3.3V, GND, and GPIO on my raspberry pi, and it works perfectly without any additional resistor.

Q: What would be the maximum length of cable one could use to connect the sensor to a Pi? I imagine that using 5v would produce a better result.

The maximum cable length can be up to 30 meters / 98 feet if you use 5 V power and 1 meter / 3.3 feet if you use 3.3 V power

Q: Does the dht library provided by adafruit work with these sensors?

I don't know about using adafruit dht library. I use the Troyka DHT library which allows to obtain data of relative humidity and temperature in degrees Celsius, Kelvin and Fahrenheit. Supported sensors: DH11, DHT21, DHT22.

Q: When using with a PI2, the sensor became very hot to the touch and had a terrible smell. Is the sensor faulty?

Hi, these sensors often overheat due to misconnections. I suggest you check your connections, including jumper continuity. Our sensor modules have a clear pinout silkscreen on them and you need to follow the silkscreen to connect them. If there is a reverse positive and negative connection, a wrong pinout or if the supply voltage is outside the marked voltage operating range, it can cause such problems as you described. We use original sensors and extremely high quality PCB and components to produce this module, they can only be used by customers if they have passed strict factory tests, and it is the first time we encountered such a problem, no matter what, we will provide you with fast and professional after-sales service. Do you have an Arduino? Then I suggest you try the simple Arduino DHT tutorial. Power up your Arduino from your computer's USB port. Then see if you can get a real value. This way you can find out if your sensor is good or not. If you still don't get any accurate values, contact me for a replacement.

Product ID: 46122350

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Brand
Gowoops
Graphics Card Description
Dedicated
Specific Uses For Product
Business
Personal computer design type
Barebone
Screen Size
2.6
Model Name
Gowoops and

⚡3.3V/5V compatible

📏Temp range: -40 to 80°C

🌡️Humidity range: 0-100%RH

Frequently Bought Together

Gowoops 2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module for Arduino Raspberry Pi, Temp Humidity Gauge Monitor Electronic Practice DIY Replace SHT11 SHT15

ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables

Description

🌍 Elevate Your Projects with Precision Monitoring!

WIDE APPLICATION - Ideal for weather stations, robotics, and home automation.
BEGINNER FRIENDLY - Perfect for students diving into IoT and electronics.
ROBUST PERFORMANCE - Reliable in various environments, from medical to home use.
PRECISION MEASUREMENT - Achieve accuracy with ±0.5°C and ±2%RH.
VERSATILE COMPATIBILITY - Easily connects to Arduino, Raspberry Pi, and more!

The 2pcs DHT22/AM2302 Digital Humidity and Temperature Sensor Module is a versatile and precise sensor designed for use with Arduino, Raspberry Pi, and other microcontrollers. It operates on both 3.3V and 5V, making it ideal for a wide range of applications, including weather stations, robotics, and home automation. With a temperature range of -40°C to 80°C and humidity measuring capabilities from 0% to 100%RH, this sensor is perfect for both beginners and seasoned engineers looking to enhance their projects.

Have a Question? See What Others Asked

Does this include the resistor you'd normally have to wire in with a standalone DHT22?

What would be the maximum length of cable one could use to connect the sensor to a Pi? I imagine that using 5v would produce a better result.

Does the dht library provided by adafruit work with these sensors?

When using with a PI2, the sensor became very hot to the touch and had a terrible smell. Is the sensor faulty?

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