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
Button Clash is an exciting two-player game where the person who pushes their button faster wins! Built it with the Arduino Plug and Make kit.
The Arduino Plug and Make Kit was designed to open up infinite possibilities, breaking down the idea that technology is a “black box” reserved for experts. With its snap-together system, this kit gives everyone – beginners and seasoned makers alike – the power to create and innovate without barriers. Forget being a passive user! With the Plug and Make Kit, technology is accessible and ready to bring your ideas to life. Meet Giulio Pilotto, Plug and Make Kit Star Giulio Pilotto is one of Arduino’s senior software engineers and works closely on Arduino Cloud projects. When we held a “Make Tank” workshop at our Turin office to showcase the potential of the Plug and Make Kit, he joined in with inspiration from a recent escape room experience. The result was Riddle Treasure, a puzzle-based game that allows you to recreate the excitement of an escape room anywhere you are. At this year’s Maker Faire, Pilotto had the opportunity to present Riddle Treasure at the Arduino booth. While he had showcased his own creations at previous Maker Faire editions, this time felt special: “The Maker Faire is always a wonderful high-energy event,” he says. “I was happy to represent the Arduino team as we focus more than ever on the community: all our products were presented in the light of what people can do with them.” Riddle Treasure To be honest, this is probably the most advanced project our in-house “Make Tank” came up with (so far!). After all, it has to be somewhat complicated to emulate intricate escape room puzzles! However, following Pilotto’s step-by-step instructions on Project Hub and leveraging the easy snap-together mechanism of Modulino nodes, anyone can recreate Riddle Treasure – or even invent a personal, unique variation. The goal of the game is to unlock a safe. But to get there, you need to complete three steps in order. 1. Combination Lock: First, you must rotate the encoder in Modulino Knob like a