Content for DHT22

A Sensor Network Controlled by Arduino Within a Wooden House Model

“In this Instructable I will show you my first electronic and IT project that I have made during my studies at the Moroccan School of Engineering Sciences (EMSI). As an IT engineer I learned on my own how to use …

Node-RED Console for Teaching Physical Computing / AI / IoT

“Through Code Club I have come to appreciate the value of visual, no-code approaches to teaching computational thinking. I wanted to expand upon the physical computing education possible with a Micro:Bit and also to introduce IoT and AI to …

DIY Air Quality Monitor – PM2.5, CO2, VOC, Ozone, Temp & Hum Arduino Meter

“Have you ever wondered about the quality of the air you are breathing, or maybe, why you sometimes feel sleepy in the office or tired in the morning even after sleeping all night? Poor air quality can lead to many …

WiFi NodeMCU ESP8266 Google Clock

“A simple easy WiFi clock using “Google” timestamp, with temperature and humidity. Oct2020 update: bug fixing and automatic brightness I made several clock with arduino but was looking simple, easy, light, synchronized in real time with internet clock different than …

Honda Motorcycle Dash

“This is my attempt to build an information display / dashboard replacement (or additon) for modern Honda motorcycles. It connects to the bike via its diagnostic port and reads information directly from the ECU It also contains a GPS module and …

Yet another dot matrix clock

“NTP synchronized dot matrix clock showing temperatures and humidity.. Optionally the time source can be GPS. That is what some readers may think, what? Another dot matrix clock? In order to combine inside/outside thermometers with a nice and precise …

COVID-19 and PM10 Levels!

“Experimental studies would assert the possibility that PM10 may act as a “carrier” for the spreading of the viral infection of COVID-19. Experimental studies would assert the possibility that particulate matter may act as a “carrier” for the spreading …

Freezer Failure Alarm

“The other day I started thinking about our chest freezer and all of the hundreds of dollars worth of food that we have in there. What if it fails and goes unnoticed for a while? The freezer is getting older …

An ESP8266-based Temperature, Humidity and Line Voltage monitor

“As anyone who reads this blog probably knows, I have a bit to do with the operation and maintenance of the Northern Utah WebSDR - a remote receiver system that allows anyone with Internet access and a web browser to listen …

Pandemic Dayclock with Indoor Air Quality Sensors

“Pandemic DayClock, with temperature, humidity, and CO2 sensors. With web interfaces to access the data (HTML/XML/JSON). Also OTA update capability. I saw https://hackaday.com/2020/04/08/what-day-is-it/ and printed both the hemisphere clock and pointer. I …