LoRa Air Quality Monitoring System
05/06/2021
IoT Tech Put to Good Use
The degrading quality of air around us remains one of the most serious issues of the 21st century. In this project article, Dhairya designs and builds a long-range and low-power system for monitoring air quality, using various sensors and the popular LoRaWAN communication protocol.
Topics Discussed
What is the system workflow?
How to interface the sensors
How to set up the LoRa network
How to set up the dashboard
Tech Used
Dragino’s LoRa shield for Arduino v1.4 (EU868)
CCS811 gas sensor
DSM501A PM2.5 dust sensor module
Raspberry Pi SBC
La version 3 6b d ARM uLisp, une variante du langage de programmation Lisp conçue pour microcontrôleurs, est disponible, elle prend en charge la sauvegarde d images sur toutes les cartes ATSAMD21
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La version 3 6b d ARM uLisp est annoncée, elle prend en charge la sauvegarde d images sur les cartes ATSAMD21, Adafruit Neo Trinkey, Adafruit Gemma M0, Adafruit Feather M0 et Arduino Zero
developpez.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from developpez.com Daily Mail and Mail on Sunday newspapers.
Build a giant live scrolling tickertape display from WS2812B Neopixels and an Arduino Uno
Display live scrolling sports scores, crypto prices, or hot tweets on the side of your favorite newspaper building. All you need are some cheap pixel strips, an Uno, and a 5 volt power supply (I used a USB charger with the connector cut off).
Demo video and easy instructions below!
Introduction
This ultimate update adds the #1 most requested feature – the ability to update the display in real time with live data over either USB or Bluetooth. That’s right – you can now have a Python program running on a Raspberry Pi that pulls bitcoin prices from the internet and displays them on the sign in real time. Happy now?
by Max Maxfield
The funny thing about knowing something yourself is that you tend to assume everyone else knows it also. This is especially true on a site like EEJournal that attracts electronic engineers and embedded systems developers from all walks of life. But the funny thing is when you actually get to sit down and chat with people you begin to realize how little they typically know outside their own area of expertise.
The same is true the other way round of course. In fact, although I don’t like to boast, I think it’s fair to say that people are often amazed to discover how little I know about almost any topic they care to mention. Not that this stops me from talking about those subjects, you understand; as I’ve said on many an occasion, much like my dear old mother, the real trick is to get us to