Dht22 dht11 difference

The DHToutshines the DHTin every aspect from temperature range, temperature accuracy, humidity range to humidity accuracy. The only downside of the DHTis, of course, the slightly higher price but you are paying for the better specs. Both sensors are easy to hook up, but collecting the data can require some careful timing. Hopefully this proves useful for anyone else wondering about the difference.

I’m looking to monitor air quality in my home. Ideally each room so my goal is to keep the cost of each monitor as low as possible. I bought one of each of the DHTand DHTto compare hoping the DHTwould be good enough because it’s only $5. We have two versions of the DHT sensor, they look a bit similar and have the same pinout, but have different characteristics.

Here are the specs: DHT11. The DHTsensor has a better resolution and a wider temperature and humidity measurement range. But you can get sensor readings every second.

The SHTconsistently responded to changes the fastest, registering a change in a few seconds. I must admit, in my opinion, I go for the DHTas it simply looks better. Combine DHTand SI114X.

Find this and other hardware projects on Hackster. The main difference is that the DHTis more accurate and has a larger measuring range. The nice thing about these sensors is that they are interchangeable, meaning that you can just replace the DHTwith a DHTor vice versa, the wiring is exactly the same. Regarding performance there is no difference if you buy the sensor itself or the module. There are only differences between the sensor or the module.

The only difference between the sensor and module is that the module will have a filtering capacitor and pull-up resistor inbuilt, and for the sensor, you have to use them externally if required. DHTand DHTTemperature and Humidity Sensor. The smaller, round data points are the published reference values.

HZ (One reading per second) Operating voltage: – 5V. The DHThas a blue colored case while the DHThas a white colored case. The DHTis cheaper, however, at the expense of less precision and less resistance.

These sensors are small, cheap and easy to use. They use only one wire to communicate with mcu. We’ll explain how it works, show some of its features and share an Arduino project example that you can modify to use in your own projects. We recommend to use the DHTfor HoneyPi, because it can also measure negative temperature values. In addition, it is more accurate than the DHT, which is why it costs a little more than the DHT, but is still very cheap.

Often DHTis available in Blue coloured housing and DHTis available in White coloured housing. As you can see, the DHTis a little more accurate, larger range but more expensive than DHT11. Furthermore the DHTis more precise than the DHT, it has some decimal places.

It is able to detect temperature and also relative humidity which is the amount of water vapor in the air vs the saturation point of water vapor in the air. DHTis the most common temperature and humidity module for Arduino and Raspberry Pi. It’s also a bit cheaper. Connecting the DHTSensor to the Arduino Uno and Mega.

However, you can request sensor readings every second. The DHTis the more expensive version which obviously has better specifications. The different versions of the DHTtemperature and humidity sensor, they are similar in look and have the same pinout configuration, but have different characteristics and specifications: DHT11.

As a result, the DHT(blue) is cheaper, but the DHT(white) is more precise and lasts longer. By this video, you will learn actual working of DHT sensors, how they will communicate with Micro controller and Difference between DHTvs DHT22. Our main aim is to fill the bridge between.

For a more in-depth analysis of these sensors, please check the sensors’ datasheet. Stopshinal, in my experience the DHTcan be quite finicky. Not sure what you mean but you can try putting a pull-up to see if that makes a difference.

Normally when a DHTis not working you won’t get any reading so in your case, it could also be ambient affect from the heat of the Spark. Interfacing DHTxx sensors with PIC microcontroller is so easy as what was done in the last project where PIC16F8is used to read relative humidity and temperature data from DHTsensor.