humidity sensor – RoboIndia

Roinco DHT22 (AM2302) Temperature & Humidity digital sensor with 3 Pin out

admin — Wed, 27 Mar 2024 08:55:58 +0000

DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability. The sensor includes a capacitive sensor wet components and a high-precision temperature measurement devices, and connected with a high-performance 8-bit microcontroller. The product has excellent quality, fast response, strong anti-jamming capability, and high cost. Standard single-bus interface, system integration quick and easy. Small size, low power consumption, signal transmission distance up to 20 meters, making it the best choice of all kinds of applications and even the most demanding applications. DHT22 has higher precision and can replace the expensive imported SHT10 temperature and humidity sensor. It can measure the environment temperature and humidity to meet the high demand.The product has high reliability and good stability.If it’s used and combined with special sensor Arduino expansion board,it will be easily implemented the interactive effect which related to the temperature and humidity perception. Caution: DHT22 digital temperature and humidity sensor is designed for analog sensor interfaces. The analog port will be used as the digital which will not occupy the original digital port of the Arduino.The lines of the sensor which can transform the analog function to digital that can be use on digital port.

Pin Description:-

Pin 1: Power +Ve (5V Max wrt. GND)

Pin 2: Digital I/O interface connected to microcontroller

Pin 3: Power Ground or Power -Ve

Roinco DHT22 (AM2302) Temperature & Humidity digital sensor

admin — Wed, 27 Mar 2024 08:55:52 +0000

The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so sensor readings can be up to 2 seconds old. Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the right most pin to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!

Items Included:

1. DHT22 Sensor – 1 Nos.

SI7021 – Temperature and Humidity Sensor (Industrial Grade)

admin — Wed, 27 Mar 2024 08:55:48 +0000

Roinco Temperature and Humidity Sensor is SI7021 based sensor. It is an Industrial Grade Sensor with high accuracy. The Si7021 offers an accurate, low-power, factory-calibrated digital solution ideal for measuring humidity, dew-point, and temperature, in applications ranging from HVAC/R and asset tracking to industrial and consumer platforms.

Items Included:

1. SI7021 Temperature & Humidity – 1 Nos.

Tutorial and Resources: Click here