Do you want to measure high DC current (and 0–26V) using a raspberry pi or similar, inexpensively? 10 amps? 100 amps? Maybe 500A? Enough of the cheesy salesman talk. — My solution is to ‘hack’ an INA219 current sensor by removing (desoldering) the 0.1 Ohm resistor and ‘replacing’ it with a high-current shunt. Don’t worry, it’s not very difficult. The INA219 current sensor is a ‘shunt’ itself, which works by measuring the (minute) voltage drop across the 0.1 Ohm resistor…

Using the Green Software Foundation’s 6 Green Software Principles. Here’s what I’ve learnt… — For some context, I built a website called FoodEmissions.uk to help conveniently measure the environmental impact of food. It’s free to use, open source, and privacy focussed. I wrote an article about it which you can find here: The Only Food Emissions Tracking App You Need — It’s Free! Have I taken this title format a step too far? Are food emissions really as exciting as a free fitness app? Let’s find…medium.com

Have I taken this title format a step too far? Are food emissions really as exciting as a free fitness app? Let’s find out… — As before, I’ll start with a TL;DR: I built a website last summer to help conveniently measure the environmental impact of your food. It’s free to use, open source, and privacy focused. Sounds good, right? With this in mind, we’ll cover the Why, What, and How of this project. Stick…

Here’s how I built it — I’ll get straight to it. Simply navigate to fitness.sebhulse.com, select your workout parameters, click Generate Workout, and away you go! No account required. No data harvesting or trackers. Just free and varied workouts to inspire your fitness journey. It’s open source, too! Tell me more Happily. I’ve designed the app to generate semi-random…

Build a capable battery-solar system with energy flow monitoring for less than £150… Oh, and have fun! — Series This series is organised into four parts. If you’re new here, I suggest starting with Part 1 for some context. Part 1 An introduction to solar power, hardware parts list, and system specification. Part 1 Intro — Build and Monitor an Affordable Battery-Solar System with a Raspberry Pi Build a capable battery-solar system with energy flow monitoring for less than £150… Oh, and have fun!medium.com

Build a capable battery-solar system with energy flow monitoring for less than £150… Oh, and have fun! — Series This series is organised into four parts. If you’re new here, I suggest starting with Part 1 for some context. Part 1 An introduction to solar power, hardware parts list, and system specification. Part 1 Intro — Build and Monitor an Affordable Battery-Solar System with a Raspberry Pi Build a capable battery-solar system with energy flow monitoring for less than £150… Oh, and have fun!medium.com

Build a capable battery-solar system with energy flow monitoring for less than £150… Oh, and have fun! — Series This series is organised into four parts. If you’re new here, I suggest starting with Part 1 for some context. Part 1 An introduction to solar power, hardware parts list, and system specification. Part 1 Intro — Build and Monitor an Affordable Battery-Solar System with a Raspberry Pi Build a capable battery-solar system with energy flow monitoring for less than £150… Oh, and have fun!medium.com

No more faffing about with HTML — write in Markdown, then render the HTML client-side, on the fly, and blazingly fast with Marked.js. Edited 4th Nov 2021 to fix a breaking change introduced by marked.js in the v4.0.0 release on 2nd Nov 2021. The marked() function has been deprecated and…

Hi! So you’ve heard the big news? That’s right — Notion has finally released its long awaited public API into the wild in beta! …