Building a portable CO2 sensor with data logging, Apple Siri/HomeKit integration, and an iOS/macOS app.
Tag Archives: sensors
CO2 x COVID-19 x live music
While planning on attending a live music venue for the first time in ~2 years, I decided the only way I’d feel safe doing so was being able to calculate the CO2 ppm live.
Sending data over LTE
Sending air quality sensor data over a mobile LTE network with a Blues Notecard.
Enviro+ air quality sensors
Pimoroni Enviro+ air quality sensors exporting their data to Prometheus and graphed by Grafana.
Air quality sensor network
Learning from the previous air quality sensors we built, I’m keen to provide some time to plan and deploy a prototype of some new hardware, and here’s where I need your help to fund the initial build.
Power & battery management
Until now I’ve been powering the water quality sensors via a USB cable either to an external power supply, or directly to my laptop for debugging. For the sensors to work in the real world they’ll need to have at least a day’s battery life if not a week to be useable. I can imagine …
Atlas Conductivity K 1.0 to TTN Uno
Now that I know the sensor works with a standard Arduino Mega, it’s time to try and get it running on The Things Uno. My first attempts getting the Atlas Scientific Uno code running on The Things Uno didn’t get very far. It seemed to be a problem running SoftwareSerial on the default pins 2 …
Water quality monitor
Six months ago I moved to Williamstown Beach just outside of Melbourne. It’s a nice beachside town about 15km from the centre of the city. The beach is a couple of blocks away via a walk through the botanic gardens – a pretty ideal place to replenish after long days in front of computers (my …