Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Chips | AHT20 and BMP280 |
| Communication Interface | I2C |
| Operating Voltage | 3.3V - 5V DC |
| Temperature Range | -40°C to +85°C |
| Humidity Range | 0% to 100% RH |
| Pressure Range | 300 hPa to 1100 hPa |
| Temperature Accuracy | ±0.5°C |
| Humidity Accuracy | ±2% RH |
| PCB Dimensions | 24mm x 16mm |
| Mounting Holes | 3mm diameter |
Anonymous
Mar 29, 2026
Rating: 4/5
Good value, clear documentation
The sensor readings seem accurate when compared to my professional hygrometer. The only minor issue was that the pin headers were not included, so I had to solder them myself. Otherwise, great product.
Anonymous
Mar 25, 2026
Rating: 4/5
Works well after initial confusion
I initially struggled with the wiring, but once I checked the schematic provided by the seller, it worked immediately. The data output is consistent. Just make sure you have a logic level converter if using 5V boards.
Anonymous
Mar 24, 2026
Rating: 5/5
Compact and precise
Small footprint makes it easy to fit into tight enclosures. The calibration data seems pre-loaded correctly as the values matched my reference instruments right out of the box.
Anonymous
Mar 23, 2026
Rating: 5/5
Easy to integrate
Plug and play with standard libraries. The BMP280 pressure readings are stable, and the AHT20 responds quickly to changes in humidity. Very satisfied with the build quality.
Anonymous
Mar 19, 2026
Rating: 5/5
Perfect for Weather Stations
This module works flawlessly with my ESP32 project. The I2C addresses are distinct, so there were no conflicts reading data from both sensors simultaneously. Highly recommended for DIY weather stations.
Anonymous
Mar 07, 2026
Rating: 5/5
Reliable for plant monitoring
I bought five of these for my automated greenhouse system. They have been running 24/7 for a month without any drift or failures. The precision is more than enough for agricultural monitoring.
Q: What library do you recommend for Arduino?
A: For the AHT20, the 'AHT20' library by Rob Tillaart works well. For the BMP280, the Adafruit BMP280 library is the industry standard. Both are available in the Arduino Library Manager.
Q: Does this module come with pin headers soldered?
A: No, the module is shipped without pin headers to allow for flexible mounting options. You will need to solder your own headers or wires.
Q: What are the default I2C addresses for these sensors?
A: The AHT20 typically uses address 0x38, and the BMP280 usually uses 0x76 or 0x77 depending on the specific batch. Both can be detected using an I2C scanner sketch.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, it is fully compatible with Raspberry Pi models via the I2C interface. Ensure you enable I2C in the raspi-config settings and connect the VCC to 3.3V.
Q: Can this sensor be used outdoors directly?
A: The PCB itself is not waterproof. For outdoor use, you must place the module inside a ventilated, weatherproof enclosure to protect it from rain and direct sunlight while allowing air flow.
Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box
$18.50
Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management
$7.36
Finished Seal Calligraphy Finished Stone Stamp Sellos Chines
$108.58
Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings
$2,247.00
6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap
$4.93
Home Balcony Vegetable Planter - Self-Watering Plastic Pot for Strawberries and Succulents
$28.00
Pressure Swing Adsorption Nitrogen Generator - High-Purity Nitrogen Device for Heat Treatment
$36,456.00
6-Cavity 3D Rose Silicone Mold for DIY Soap Making Heat-Resistant Non-Stick Large Size for Milk Soap and Essential Oil Soap
$5.80
Traditional Handmade Baby Teething Rattle Sheepskin Wooden Clapper Newborn Toy Intangible Cultural Heritage
$29.85
Manufacturer Supply ZSJC02 Film Splicing Table, Alignment Table, Film Inspection Table
$4,484.00
Box-Type Oxygen Generator Export Equipment - Stable Nitrogen and Oxygen Production for Wastewater Treatment
$25,000.00
Wholesale Acrylic Paint Stick Set, 3ml x 12 Colors, Non-Toxic for Children's DIY and Street Art
$2.01
Cheese Processing Equipment - Small Pasteurized Fresh Milk Production Line, Fully Automatic Cheese Making Machine
$66,500.00
Household Mini Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot & BBQ Odor Removal
$41.00
Sanitary Grade Stainless Steel Low-Temperature Vacuum Single-Effect Falling Film Evaporator for Milk Powder and Juice Processing
$4,158.00
Chain Shortener & Lifting Rigging - Double Chain Hook Assembly for Overhead Cranes and Hoists
$130.00
Youlian Toast Shaping Machine Dough Molder Square Bread Shaper Bakery Equipment YSN-T380
$9,695.20
Michelin Tire 255/50R20 109V - Compatible with VW Teramont, Trumpchi GS8, AITO M7, Li Auto L7/L8/L9, and NIO ES6
$550.00
Traditional Wooden Rattle with Sheepskin Head for Early Education Newborns Boys and Girls Visual Tracking Grip and Hearing Training
$11.88
French Canson Classic Printmaking Paper 100% Cotton 320g for Screen Printing, Woodcut, Copperplate, Lithography; 250g Cotton Pulp 60*76cm Half Sheet 8K Quarter Sheet A4 Printmaking Painting Tool Set Ink Roll Rubbing Paper
$7.65
Fan Start Capacitor 8uF for ABB ACS800 VFD
$350.00
babycare Baby Rattle with Teether for Newborns, Silicone Shaker Bell Educational Toy for Infants and Toddlers
$39.90
Class 100 Clean Workbench and Laminar Flow Hood, Negative Pressure Weighing Booth, Direct from Manufacturer
$2,475.00
1.9m 4-Printhead Digital Sublimation Printer for Diatom Mud, Polyester Fabric, and Garment Heat Transfer Printing
$600.00
ergo5950 Acrylic Specialty Adhesive - High-Strength Bond for Acrylic Sheets, PMMA, Glass, Fish Tanks, PLA, and PC Boards
$57.84
Invisalign Orthodontic Retainer Storage Box - Compact Portable Cleaning Case for Teeth Aligners and Dentures
$12.30
![[Camizong] Lilith's Claw – Gothic-Style Fork Acrylic Check-In Stick for Badge Display with Magnetic Backing](https://www.gosteppe.com/cache/small/product/269664/legacy-main-61a7c901e7dad39a31ac652a.png)
[Camizong] Lilith's Claw – Gothic-Style Fork Acrylic Check-In Stick for Badge Display with Magnetic Backing
$11.70
PELICAN 1010 Outdoor Waterproof Micro Case for Earphones and Cable Storage
$25.00
Korea Hwahong Model 345 Detail Liner Brush for Painting - Recommended by Xijiu 011
$12.52
Stainless Steel Oil Painting Medium Dispenser and Brush Washer Cup for Students, Diluent and Watercolor Paint Supplies
$3.80
![[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)
