Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | AHT20 |
| Interface Type | I2C Digital Signal |
| Temperature Range | -40°C to +85°C |
| Humidity Range | 0% to 100% RH |
| Accuracy (Humidity) | ±2% RH |
| Accuracy (Temperature) | ±0.3°C |
| Supply Voltage | 2.4V to 5.5V DC |
| Response Time | < 5 Seconds |
| Package Type | SMD Module with Pins |
| Application | IoT, HVAC, Smart Home |
Anonymous
Mar 31, 2026
Rating: 4/5
Good sensor, careful with wiring
Works well once connected properly. Make sure you have pull-up resistors on the SDA and SCL lines. The humidity data updates quickly.
Anonymous
Mar 21, 2026
Rating: 4/5
Great module for beginners
Easy to interface with Arduino. Libraries are readily available. Only wish the pins were pre-soldered, but that's a minor inconvenience.
Anonymous
Mar 13, 2026
Rating: 5/5
Consistent performance
Bought five units for a multi-point monitoring system. All five performed identically right out of the box. Excellent consistency.
Anonymous
Mar 12, 2026
Rating: 5/5
Perfect for my weather station project
The I2C communication was seamless with my ESP32. Readings are stable and match my reference meter closely. Great value for the precision offered.
Anonymous
Mar 09, 2026
Rating: 5/5
Highly accurate and reliable
I tested this against a professional grade sensor and the deviation was negligible. The anti-interference feature seems to work well in noisy environments.
Anonymous
Mar 08, 2026
Rating: 5/5
Essential for automation
Using these in my automated greenhouse setup. They have been running 24/7 for two months without drifting. Very satisfied with the build quality.
Q: What is the default I2C address for this sensor?
A: The default I2C address for the AHT20 is usually 0x38. Please refer to the datasheet for confirmation if you are using a specific batch.
Q: Can this operate at 3.3V logic levels?
A: Absolutely. The AHT20 supports a voltage range of 2.4V to 5.5V, so it is fully compatible with both 3.3V and 5V microcontrollers.
Q: Does this module come with pull-up resistors built-in?
A: Yes, the AHT20 module typically includes onboard pull-up resistors for the I2C lines, making it ready to use without extra components.
Q: Is there a library available for Python?
A: Yes, there are several open-source Python libraries available for Raspberry Pi and other platforms that support the AHT20 via the I2C bus.
Q: How often should I calibrate this sensor?
A: The AHT20 is factory calibrated and generally does not require user calibration under normal operating conditions. It maintains stability over time.
Chunfei Grocery Store Yunan GR02 Gravel Bike, Thru-Axle, Mechanical Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts
$6,441.00
Electric Guitar Tutorial for Beginners - 7-Week Self-Study Plan with Exercises, Corrections, and Materials
$219.00
Professional Bathtub-Style Brush Washing Set - Cute 3-Piece Watercolor and Chinese Painting Brush Cleaner with Palette
$11.80
![[Sold Out & Discontinued - Display Only] Radish Defense ABO20.0 Spring Tour Series Blind Box Figure](https://www.gosteppe.com/cache/small/product/269201/legacy-main-5af4651a8d30dc42d9412600.png)
[Sold Out & Discontinued - Display Only] Radish Defense ABO20.0 Spring Tour Series Blind Box Figure
$16.90
Ebru Marbling Plastic Tool Kit – Needles, 3-Prong Combs, Cones, Straws, and Droppers for Peacock Patterns
$1.28
CANDLE.LAB | Silicone Border Mat for DIY Scented Candles and Soap Making Tray Mold
$32.00
Shiji Runde Coal Shed Mine Dust Removal Explosion-Proof Anti-Freezing Fog Cannon Port Dust Suppression 80m Ultra-Fine Industrial Fog Machine
$4,180.00
Mobile Retractable Spray Booth for Furniture - Foldable Track-Mounted Painting Room
$6,240.00
Long Handle Bristle Paint Brush - Hog Hair Brush for Oil Painting, Acrylic Wall Art, and Children's Drawing
$1.80
Electrostatic Powder Coating Equipment and Electronic Powder Dispenser Supply
$17,250.00
DIY Toast-Shaped Silicone Mold for Handmade Soap - Square Soap Making Mold
$105.00
Kindergarten Sponge Stamp Set – Mushroom-Head Circular Printing Tools for Kids' DIY Art and Painting Kits
$3.50
Heavy-Duty Lifting Chain Set – Manganese Steel Chains with Hooks, Rings, and Hoist Accessories
$198.00
Car Tire Stone Removal Tool, Multi-Function Groove Hook for Portable Tire Picking and Cleaning
$11.50
m Dogs Strap Auto Retractable Dual Dog Leash With
$199.92
Traditional Wooden Sheepskin Rattle Toy – Safe for Teething Newborns, Handcrafted Baby Bell Shaker
$17.80
Soilless Cultivation Equipment Plant Factory Display Rooftop Hydroponic Pipe System for Leafy Vegetables and Fruits, Type A Planting Rack
$2,620.16
Premium Ceramic Tea Canister and Gift Box Set - Empty Packaging for Black Tea, Pu'er, White Tea, and Biluochun
$121.00
Posture-Correcting Hole-Grip Pencils for Grade 1 - Triangular Barrel, Break-Resistant, Non-Toxic HB for Daily Writing and 2B for Exams
$3.02
Genuine OEM AC Blower Motor Heater Fan for Buick Excelle GT, Cavalier, and Monza
$255.00
TA1 TA2 Titanium Capillary Tubes - Small Diameter Titanium Pipes - GR5 Titanium Alloy Tubes
$240.00
Industrial Spray Painting Wipe Cloth Auto Bake Finish Film Application Degreasing Cloth Non-Woven Absorbent Paper Lint-Free Paper Electrostatic Dust Removal Paper
$75.66
US Standard Buttress Thread Inserts 22ER 16ER 11NR 16 10 12 8ABUT Internal 7 External 45 Degree
$43.20
Coating Workshop Cleaning Rags GAE Industry White Scrap Cloth Nylon Machine Cloth Blocks Industrial Glue Removal Furniture Cleaning
$96.31
Natural 8A Yellow Tiger Eye Loose Beads - Round Cat's Eye Bracelet for DIY Jewelry Making
$17.28
Paper Blending Stumps Art Set for Highlighting, Sketching, and Smudging - Professional Drawing Tools for Artists and Beginners with Rice Paper Details and Oil Pastels
$6.80
Rubber Speed Bump 1000x350x40mm Herringbone Pattern
$96.89
![Xian Kan Yun Shu [Cloud Lark] Elegant Brush Washer, Hand-Painted Orchid and Sparrow Design under Glaze, Ceramic Water Pot](https://www.gosteppe.com/cache/small/product/269176/legacy-main-b83d0e5d0aba33de561a2b48.webp)
Xian Kan Yun Shu [Cloud Lark] Elegant Brush Washer, Hand-Painted Orchid and Sparrow Design under Glaze, Ceramic Water Pot
$21.20
Cable Organizer Hook-and-Loop Straps for Data/Charging Cables, Laptop Power, Mouse, Headphones, and Under-Desk Network Wiring
$7.48
Power Strip Organizer Box, Desktop Socket Concealment Case for Charging Cables and Power Cords, Hidden Storage Shelf
$21.93
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[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)
