Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | DHT22 (AM2302) |
| Interface | Single-Bus Digital |
| Temperature Range | -40°C to +80°C |
| Temperature Accuracy | ±0.5°C |
| Humidity Range | 0% to 100% RH |
| Humidity Accuracy | ±2% RH |
| Operating Voltage | 3.3V - 6V DC |
| Sampling Period | 2 Seconds |
| Pin Count | 4 Pins |
| Application | Arduino, Raspberry Pi, IoT Projects |
Anonymous
Mar 22, 2026
Rating: 5/5
Essential for electronics class
Bought this for a university project. It arrived quickly and the module version makes it much easier to breadboard than the bare component. Highly recommended for beginners.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for my weather station
This sensor works flawlessly with my Arduino Uno. The readings are consistent and match my professional hygrometer closely. Easy to wire up using the standard library.
Anonymous
Mar 08, 2026
Rating: 4/5
Good accuracy, slow sampling
Great for monitoring my greenhouse humidity. Just remember it only updates every 2 seconds, so don't expect real-time rapid changes. Otherwise, very reliable.
Anonymous
Mar 07, 2026
Rating: 5/5
Better than the DHT11
Upgraded from the blue DHT11 sensor and the difference in precision is noticeable immediately. Worth the extra cost for any serious environmental monitoring project.
Anonymous
Mar 03, 2026
Rating: 4/5
Works well with ESP32
Connected easily to my ESP32 board. Had to ensure I used a pull-up resistor, but the module often has one built-in. Readings are accurate enough for home automation triggers.
Anonymous
Mar 01, 2026
Rating: 5/5
Stable readings over time
I have had this running in my living room for three months now. No drift in values and it hasn't failed once. The build quality of the PCB looks solid.
Q: Is this compatible with the Raspberry Pi GPIO pins?
A: Yes, it is compatible. However, since Raspberry Pi GPIOs are 3.3V logic, ensure your specific module supports 3.3V logic levels or use a level shifter if necessary.
Q: What is the maximum cable length recommended for accurate readings?
A: For best results, keep the cable between the microcontroller and the sensor under 20 meters. Longer distances may require signal buffering or shielding.
Q: Does this module come with a pull-up resistor installed?
A: Yes, most DHT22 modules include a 10k ohm pull-up resistor on the data line, making it ready to use without additional components.
Q: Can I power this directly from a 5V USB source?
A: Absolutely. The DHT22 operates within a voltage range of 3.3V to 6V, so a standard 5V USB connection is perfectly safe and ideal.
Q: How do I calibrate the sensor if the readings seem off?
A: The DHT22 is factory calibrated and generally does not require user calibration. If readings are significantly off, check your wiring, power supply stability, or try a different code library.
Commercial Food Warmer Cabinet for Milk, Soy Milk, Burgers, Egg Tarts, Fried Chicken, Pies, Youtiao, and Bread Display
$1,355.00
PJ0040 Rose Embossed Cross Silicone Mold - For Candles, Aromatherapy, Soap, Plaster, and DIY Crafts
$11.20
Yuwell Oxygen Concentrator Control Board Motherboard 8F-3AW/8F-5AW/9F-5BW
$120.00
Leyingfang Floating Pen for Kids and Students - Water-Based Non-Toxic Erasable Whiteboard Pen for Drawing in Water, Large Capacity Suspension Pen
$18.00
Car Wheel Lug Nut Covers - Colorful Silicone Dust-Proof and Rust-Proof Caps for Tire Bolt Protection and Exterior Styling
$8.80
Automatic Stainless Steel Vegetable Slicer for Ginger, Potatoes, Carrots, Onions, and Cabbage - Commercial Dicing Machine
$3,951.36
![[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)](https://www.gosteppe.com/cache/small/product/270156/legacy-main-525bdaff56f89ee94752ef9c.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)
$7,000.00
Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery
$1.00
Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack
$3.80
Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair
$66.00
Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container
$159,443.00
Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study
$16.80
Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition
$29.90
Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink
$3.51
Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22
$357.00
Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag
$11.70
Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion
$231,249.00
Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box
$11.85
Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice
$28.00
Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case
$977.00
Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe
$1.00
Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes
$2.50
Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials
$36.00
Color Proofing Instrument Ink Mixing Tool Sample Making Machine
$1,860.00
Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V
$1,430.00
2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids
$11.30
Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line
$113,050.00
Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy
$49.50
![[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting](https://www.gosteppe.com/cache/small/product/270133/legacy-main-a12ad5b62abb27a9a45afaf4.png)
[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting
$7.48
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
