Content for DHT22

DHT22

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). It's 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 when using our library, sensor readings can be up to 2 seconds old.

How to monitor a beehive with Arduino Nano 33BLE (bluetooth)

“You have a beehive and you want to optimise your interventions ? Checkout our project where we embed sensors in the beehive. Our team was led to rub shoulders with beekeepers and after few exchanges some issues appeared. Indeed, beekeepers do …

NodeMcu Solar Weather Station

“Let’s Go Make Deep Sleep Mode ThingSpeak Solar Weather Station What is Personal WeatherStation A personal weather station is a set of weather measuring instruments operated by a private individual, club, association, or business (where obtaining and distributing weather …

Sensor comparison: temperature, humidity and air pressure

“How well, or how differently, do different sensors measure environmental data? A comparison of two units under different conditions. Reliable data for temperature and humidity Environmental data can be very helpful, but for that they should also be reliable. Room …

DIY 3D Resin Curing Station with Wio Terminal

“I decided to venture into the world of 3D resin printing after years of immersion using FDM (fused deposition modeling) printing. For those who are unfamiliar with this, it’s like squeezing toothpaste onto a surface. I have a Lulzbot …

IoT based Air Quality Index Monitoring System

“This small circuit board helps AQI Monitoring through an interactive dashboard showing data of Ozone, CO2, Temperature and Humidity. Life is very precious and we have only one chance to live it. In daily life routine, we do many activities …

Raspberry Pi Temperature and CO2 Monitor

“Measure and display air quality with the Raspberry Pi. This project is ideal if you already have a Raspberry Pi running 24/7, e.g., as web server, printer server, pi-hole etc. Then you can easily add extra functionality like …

All in one clock

“Clock alarm temprture senseor and timer, all in one device using an arduino uno and RTC In this project we will make an arduino clock alarm with timer and a temperature sensor.”

Home Security Smart Clock IoT Emergency App Notification

“I made a Clock that not only display Time,Date, Temp & Hum but you can send message to the clock via Mobile App (Blynk) from anywhere in the World as long as you are connected to internet. And you can …

DHT22 Data to Google sheet Using ESP8266 without credential

“Here the DHT22 sensor is connected to ESP8266 NodeMCU and ESP8266 NodeMCU is connected to Internet through WiFi to send the DHT22. Here the DHT sensor is connected to ESP8266 NodeMCU and ESP8266 NodeMCU is connected to the Internet through …

Internet of things (IoT)-based solar tracker

“The proposed IoT solution can be employed in various fields to connect devices or things to the internet. This project presents a simple and low-cost IoT solution to monitor and control a smart dual-axis solar tracker system for performance evaluation …