1. Introduction
The Keyes 2021 new DIY electronic building block DHT11 temperature and humidity sensor module is a high-precision digital temperature and humidity sensor capable of measuring ambient temperature and humidity in real time. This device is widely used in weather stations, home environmental monitoring, and smartphones.
2. Features
- Environmentally friendly materials : Made of black environmentally friendly materials that meet modern safety standards.
- High-precision measurement : Provides reliable temperature and humidity data, suitable for monitoring various environments.
- Anti-reverse insertion interface : Equipped with blue anti-reverse insertion terminals to ensure safe and stable connection.
- Wide compatibility : Compatible with various control boards such as Arduino and Raspberry Pi, facilitating project development.
Easy to use : Simple wiring method, suitable for beginners and hobbyists.
3. Specifications
|
parameter |
describe |
|---|---|
|
model |
KE4033 |
|
Sensor type |
DHT11 |
|
Wire length |
200mm |
|
Operating voltage |
DC 5V |
|
Interface type |
Anti-reverse interface with a spacing of 2.54mm |
|
Temperature range |
0-50°C |
|
Humidity range |
20-90% RH |
|
Power consumption |
Approximately 20mA (when operating at 5V) |
4. Working Principle
The DHT11 temperature and humidity sensor senses temperature and humidity in real time through its internal circuitry and outputs digital signals. Its operation is as follows:
- Power connection : Connect to the power supply via VCC and GND. The module supports DC 5V operation.
- Signal output : The module periodically outputs the currently measured temperature and humidity data in the form of electrical signals.
5. Foot position description
|
Pin Name |
describe |
|---|---|
|
VCC |
Connect the positive power supply terminal; supports DC 5V input. |
|
GND |
negative power connection |
|
S |
Digital output signal representing temperature and humidity data |