sighmon likes...

SpaceX TVJune 8, 2026
I honestly thought my obsession with Starship was easing… turns out all it took was flight 12 (the first flight of version…
Solar air quality sensorsMay 15, 2025
A few moons ago I built a BalenaOS deployed set of Enviro+ air quality sensors for my Raspberry Pi Zero. It’s been…
ChatGPT with your voiceApril 30, 2023
From S.A.M. on the Commodore 64 to a SwiftUI iOS app that simulates Samantha from Her.
CO2 sensor and iOS/macOS appSeptember 23, 2022
Building a portable CO2 sensor with data logging, Apple Siri/HomeKit integration, and an iOS/macOS app.
CO2 x COVID-19 x live musicJuly 24, 2022
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.
Low flow shower headOctober 17, 2021
We replaced our 90s shower head with a low flow 5 L/min shower head
Sending data over LTEMay 4, 2020
Sending air quality sensor data over a mobile LTE network with a Blues Notecard.
Storing sensor dataApril 4, 2020
Choosing a timeseries database to store lots of air quality sensor data.
Enviro+ air quality sensorsMarch 29, 2020
Pimoroni Enviro+ air quality sensors exporting their data to Prometheus and graphed by Grafana.
Air quality sensor networkJanuary 15, 2020
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.

sighmon likes…