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.

Automated Vertical Farming

“A system using light, soil moisture and humidity sensors to control the water, light and humidity needed by the vertical farm. Introduction In this group project, the design was to introduce an automation to vertical farming. The automation on vertical …

Arduino-controlled 832 MAX7219 Dot Matrix LED Display

“In this comprehensive guide, we will explore how to effectively employ the 8×32 MAX7219 Dot Matrix LED Display with an Arduino. This LED matrix module, equipped with the MAX7129 LED driver, is fully compatible with Arduino boards and other …

SenderReceiver

“Receiver and senders to monitor environmental data like temperature, humidity … window, mailbox and wash machine states. Signals ASK ASK (Amplitude-Shift Keying) is a simple signal modulation, which is used in cheap 433 MHz modules like the FS1000A. LoRa LoRa is …

Human Breathalyzer to monitor ketosis

“It is a tool to monitor the presence of acetone in our breath. It uses gas sensor MQ-135, 1.3inch OLED display, DHT22 & Arduino Uno. Acetone is a volatile organic compound that is produced as a byproduct of the …

Smart Air Quality Monitoring System

“The aim of this project is to design and implement an air quality monitoring system. This project activates actuators to be able to maintain better air quality around us. This project can be used in our houses, warehouses, and greenhouses …

Project  Beep Beep

Beep Beep

“In order to prevent colony collapse syndrome, we have created an autonomous embedded system to help beekeepers During our 4th year at Polytech Sorbonne, we took part in the conception and set-up of a monitoring embedded system applied on hives …

Hive Monitoring

“This project aims to monitor remotely the evolution of a bee colony, thanks to a connected system equipped with sensors of all kind. Story Since the end of the 90’s, a phenomenon known as Colony Collapsse Disorder, among honey …

Automatic FART EXTRACTOR / Bathroom Dehumidifier Fan

“A fan, a bathroom dehumidifier, or, as I like to call it, an AUTOMATIC FART EXTRACTOR. Though I am very aware of the problems caused by excess moisture, like mold, and general degradation and decay, plus the health problems, my …

Environmental Toolkit for an Ecological Area V2.0

“Air pollution has a number of negative impacts on the environment, including damage to human health and natural ecosystems. The World Economic Forum has stated that air pollution is the ‘deadliest form of pollution’, while the World Health Organization claims …

DIY Weather Station With ESP32

“Hello! Today we are going to look at this smart weather station I built. The weather station I built measures temperature, humidity, air pressure, wind speed and direction, and the amount of rain that falls. All the data is collected …