We’ve been looking at making PCB motors. So far, we’ve got some promising results, we can make a magnet jump around - and we can even make our motor turn. We can even get our motor up to pretty high speeds - 2700+ RPM - which is pretty bonkers. You can watch a video version of this post here - there are a lot of nice animations in it:
20 November 2022
I’ve been making a KiCad PCBNew action plugin recently for generating coils - you can watch a video of the results below, but I wanted to capture what I had learnt for future reference - mostly so that I have something to refer to, but hopefully this will be useful to others as well.
24 October 2022
I’ve been messing around making PCB coils, but instead of drawing them by hand, which would be pretty frustrating, I’ve automated the entire process.
23 October 2022
We’ve got a few options when developing on the RaspberryPI. We can connect a mouse, keyboard and monitor and treat it like a desktop computer - but it’s not always very convenient.
24 September 2022
1971 was an auspicious year. I was born - and Intel released the first commercially produced microprocessor - the 4004. This would trigger a chain of events that would have a huge impact on the world and on my life.
19 August 2022
It’s getting increasingly difficult on YouTube to reach the audience. Even high-quality content disappears under the weight of videos being published and YouTube is really only interested in keeping viewers on the platform - it’s not interested in showing people what they actually want to see.
06 August 2022
I decided to get one of the TS80P soldering irons that everyones seems to have been raving about for the past year or so.
04 August 2022
So this happened - 1.8 million views. I thought it might be fun to go through a few stats on the video the impact it’s had and of course cover how much money it made.
27 July 2022
As you wonder around town, have a look in the gutters (or if you’re feeling brave rummage around in pub ashtrays), you’ll notice a pretty nasty trend. There are now a large number of disposable vape devices that aren’t getting recycled.
16 July 2022
I finally got the PCBs submitted to PCBWay
for manufacture. You can watch a detailed video of the design process with KiCad here:
06 February 2022
I2S audio and DMA it’s a mysterious world. What are these parameters: dma_buf_count and dma_buf_len?
20 April 2021
What’s the bare minimum you should be doing? Tick all these boxes and you are on you way to being an effective team. If you’re missing any - you probably aren’t.
26 November 2020
All the source code for this tutorial is in GitHub
15 October 2020
There are a few options out there for getting analogue audio data into the ESP32.
12 September 2020
Categorical classification is used where you have data that falls into one of many categories - an example of this would be classifying food - e.g. “hot dog”, “pizza”, “fries” etc…
06 September 2020
Binary classification is used where you have data that falls into two possible classes - a classic example would be “hotdog” or “not hotdog” ((if you don’t get the hot dog reference then watch this).
06 September 2020
This is more of a reminder for myself, but I’m sure it will be useful for someone else.
04 September 2020
Hopefully, everyone agrees that you should have some form of logging in your production systems. I would also hope that nowadays everyone agrees that using some kind of centralised logging system that you can access without SSHing onto production boxes is the right way to do things.
28 August 2020