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ESP32-S3 Dev Board Assembly
And it blinks...
Nov 13
•
Chris Greening
1
I Built a 27V PCB to Fix This $3 Display...
Was it really worth it?
Nov 7
•
Chris Greening
1
October 2025
I made a 10¢ MCU Talk
TLDR: Yes, you can fit about 7 seconds of audio into 16K of flash and still have room for code. And you can even play LPC encoded audio on a 10¢ MCU.
Oct 29
•
Chris Greening
1
Brain Surgery
I got one of these silly Halloween toys - they are kind of fun - but it feels like we can make them even more fun/annoying...
Oct 24
•
Chris Greening
1
10 Cent Music Machine
These super cheap MCUs have been around for a while - let's see if we can get some tunes out of the cheapest one!
Oct 17
•
Chris Greening
1
PDM Microphone Mystery
There's no LR pin in the code - what are we supposed to do with it?
Oct 10
•
Chris Greening
1
ESP32-S3 as a USB Audio Device
Testing the ESP32-S3 board as a USB audio device. The microphone performs brilliantly over USB, but the speaker is still crackly. Here’s what worked…
Oct 3
•
Chris Greening
2
September 2025
High Voltage Coin Cell
27 volts from a 3 volt coin cell? Are we breaking the laws of phyics?
Sep 26
•
Chris Greening
2
Easy ESP32-S3 Dev Board
You don't need much to make a dev board...
Sep 20
•
Chris Greening
6
Red Arcade Thing Repair
Fixing the Arcade Handheld – Voltage Regulators, Dead Batteries, and a Bit of Soldering...
Sep 14
•
Chris Greening
4
1
This could have caught fire!
I've been thinking about this a bit more - I probably had a lucky escape here - this could have actually caught fire...
Sep 7
•
Chris Greening
3
1
A better serial plotter
I got tired of the Arduino Serial Plotter - surely we can do better!
Sep 3
•
Chris Greening
2
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