Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | DHT11 |
| Output Signal | Single-bus digital signal |
| Power Supply | 3V to 5.5V DC |
| Temperature Range | 0°C to 50°C |
| Humidity Range | 20% to 90% RH |
| Temperature Accuracy | ±2°C |
| Humidity Accuracy | ±5% RH |
| Sampling Period | 1 second |
| Pin Count | 4 Pins |
| Compatibility | Arduino, Raspberry Pi, ESP8266 |
Anonymous
Mar 30, 2026
Rating: 3/5
Slow response time
The sensor works, but the 1-second sampling rate feels a bit slow if you need rapid changes detected. For standard weather stations, it is perfectly fine.
Anonymous
Mar 27, 2026
Rating: 5/5
Great for school projects
Used this for my final year engineering project. It provided consistent data throughout the testing phase. Highly recommend for students on a budget.
Anonymous
Mar 20, 2026
Rating: 4/5
Good for indoor plants
I used this to monitor humidity in my greenhouse. It seems accurate enough for general monitoring, though I wouldn't rely on it for scientific precision. Solid build quality.
Anonymous
Mar 19, 2026
Rating: 4/5
Standard component
Exactly what you expect from a DHT11. Nothing fancy, just a reliable workhorse for basic temperature and humidity readings. Shipping was fast.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect for beginner projects
This sensor works flawlessly with my Arduino Uno. The library examples made it incredibly easy to get up and running within minutes. Great value for the price.
Anonymous
Mar 09, 2026
Rating: 5/5
Reliable and cheap
Bought a pack of five for various IoT prototypes. All of them worked out of the box. The single-wire interface saves GPIO pins which is a huge plus.
Q: Is a library required for Arduino?
A: While you can write the code from scratch, we highly recommend using the standard DHT sensor library available in the Arduino Library Manager for ease of use.
Q: Does this module come with a pull-up resistor?
A: Yes, most breakout boards include an integrated 10k pull-up resistor on the data line, making it ready to use without extra components.
Q: How many wires do I need to connect?
A: You typically need to connect three wires: VCC (power), GND (ground), and DATA (signal). The fourth pin on the component is usually not connected.
Q: What is the difference between DHT11 and DHT22?
A: The DHT22 offers higher accuracy and a wider range of temperature and humidity measurement compared to the DHT11, but the DHT11 is more affordable and faster.
Q: Can I use this sensor outdoors in the rain?
A: No, the DHT11 is not waterproof or weatherproof. It should only be used indoors or inside a protective enclosure if used outside.
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