Overview
Grove-Temperature & Humidity Sensor Pro is a high accuracy temperature and humidity sensor based on the DHT22 module (also known as AM2302 or RHT03). High-cost performance and high precision make it ideal for temperature and humidity monitoring of Arduino and Raspberry Pi, you can also use it to make a thermometer and hygrometer.
The DHT22 includes a capacitive humidity sensor and a high precision temperature sensor. The range of humidity sensor is 0 to 99.9 %RH with ±2% accuracy while the temperature sensor ranges from -40 to 80℃ with ±0.5℃ accuracy. With the help of a built-in 8-bit microcontroller, the DHT22 converts the analog output of those two sensors to the digital signal, and output both temperature and humidity data via a single pin.
Compared with the DHT11, this product has higher precision and wider measurement range, but the usage and code are almost the same. Simply put, if you need higher measurement accuracy, this product will be a better choice.
Tech specs
|
Item |
Min |
Norm |
Max |
Unit |
|
VCC |
3.3 |
- |
6 |
V |
|
Measuring Current Supply |
1 |
- |
1.5 |
mA |
|
Standby Current Supply |
40 |
- |
50 |
uA |
|
Measuring range (Humidity) |
5% |
- |
99% |
RH |
|
Measuring range (Temperature) |
-40 |
- |
80 |
°C |
|
Accuracy(Humidity) |
- |
- |
±2% |
RH |
|
Accuracy (Temperature) |
- |
- |
±0.5 |
°C |
|
Resolution (Humidity) |
- |
- |
0.1% |
RH |
|
Resolution (Temperature) |
- |
- |
0.1 |
°C |
|
Repeatability(Humidity) |
- |
- |
±0.3% |
RH |
|
Repeatability (Temperature) |
- |
- |
±0.2 |
°C |
|
Long-term Stability |
- |
- |
±0.5% |
RH/year |
|
Signal Collecting Period |
- |
2 |
- |
S |
|
Respond Time 1/e(63%) |
6 |
- |
20 |
S |
Get Inspired
We are excited to announce our team will be traveling to Amsterdam for The Things Conference on September 22nd-23rd, where Arduino will be among select exhibitors. The Things Conference is the world’s largest conference about LoRaWAN®, bringing together the industry’s major players contributing to this technology’s development in a two-day deep dive dedicated to making business operations smarter. This year’s edition will focus on the main topic of digital transformation – as seen through the lens of LoRaWAN®, of course! Connect with us at The Things Conference Don’t miss your chance to meet our experts in person at Amsterdam’s The Kromhouthal – a former marine engine factory now turned into a unique event venue. We’ll be showcasing some of our best LoRaWAN® products and solutions: The Portenta Vision Shield LoRa®, designed to boost Arduino Pro’s H7 module with the capability to run embedded computer vision applications, connect wirelessly via LoRa® to the Arduino Cloud (or third-party infrastructure), and activate systems upon the detection of sound events; The Portenta Max Carrier, which can augment Portenta H7 or X8 with LoRa® connectivity and transform existing Arduino Pro modules into single-board computers or reference designs that enable edge AI for high-performance industrial, building automation and robotics applications;The Arduino MKR WAN 1310, an entry-level option featuring the renowned versatility of the MKR family: a practical and cost-effective solution to add LoRa® connectivity to projects requiring low power;Last but not least, the newly launched WisGate Edge Lite 2 and WisGate Edge Pro: ready-to-use, industrial-grade gateways for LoRaWAN® connectivity powered by RAKwireless™. On September 22nd, the packed schedule of The Things Conference also includes a keynote by Sebastian Romero, Lead Interaction Designer & Creative Technologist at Arduino: “Predictive Maintenance with an Arduino-based
