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
Display real-time meeting room availability, synchronized with Google Calendar through Arduino IoT Cloud.
We’re excited to announce the launch of the new Arduino IoT Bundle. This is built to help you dive into the complex and fascinating world of the Internet of Things with even more confidence and possibility — giving you the hardware, software, and components you need to create your own connected IoT projects. So how does it all work? Let’s find out more. What is the Arduino IoT Bundle? Getting started with the IoT can be a daunting process. It requires a certain set of tools and a level of knowledge to take those first steps, but building your own connected IoT devices can be an incredibly rewarding process once you figure out the basics. The Arduino IoT Bundle is designed to bring together all the tools and knowledge you’ll need to get started with your first connected IoT devices. It’s built around the Arduino Nano RP2040 Connect, and the bundle also contains electronic components and a series of step-by-step tutorials to help you get started quickly and confidently. How it works — some examples The IoT is an incredibly rich area when it comes to building your own connected projects. There are a ton of exciting opportunities here that don’t require an enormous amount of knowledge or resources to get started with. Let’s take a look at some examples of IoT projects, you’ll find more in the bundle: Pavlov’s Cat Training a cat is a tricky business, as any feline owner will know all too well. However, you can now use technology to make this task easier, using an IoT-enabled device you build at home to keep your cats in line. This project — using only components found in the Arduino IoT Bundle and some cardboard — allows you to build a device that plays a certain melody whenever it dispenses food for your cat. At other times, it will play a different tune and your furry friend gets nothing. Just like Pavlov and his famous dogs, you’ll be able to train your cat to associate certain sounds with a reward
