Using multiple identical I2C devices
In this article we look at the problem of I²C devices that have the same address and how we can still talk to them individually within our circuit by using an additional cheap IC.
DACAudio Version 3 Released
Latest version sporting several additions/changes. Now has basic musical instruments and can play basic musical scores. You can also link sound items together to be played in sequence. Click this article to go to the downloads page or use the menus above.
A thank you to this month’s donators
Another couple of months has passed since I last said thank you to those that donate to this site. This time I’d like to say thank you to the following people (in order of donation date): Torsten D. Sachin S. Gert W. Chris L. Andy B. Really appreciate this, […]
Menus spring clean
The main menu’s have been refreshed with the ones for shopping removed. In the future they may return as I do intend to sell kits of the projects on these pages but the time required to do that is something that I do not have at the moment. Menu names […]
Video : ESP32 Music Synthesizer
This video introduces the latest update to the DACAudio library by demonstrating its synthesis capabilities. It’s at a basic stage at the moment so no release of the code yet, but shows how easy it is to play musical scores with the various instruments available.
Playing Wavs – Updated
The library introduced in the previous article on playing WAV’s using a DAC (on ESP32) has been re-written to allow for more flexibility in the future. The coding change in your code is only minor despite the re-write being large. Click to read full article.
ESP32 Interrupts and OOP programming panics!
The quick read : use only simple globals in ESP32 Interrupts do not use objects! The longer read below… As part of my sound module (to be used first in the Frogger build) I have to use interrupts as a necessity. In addition I like to work in OOP when I […]
Ripple Tank Frequency counter/display
Project to enable small portable Lascells ripple tanks to display the frequency of the wave, supporting the video just below.
Video: Building a wave frequency counter/ strobe counter
Build of a frequency counter for an educational portable ripple tank used to investigate properties of waves. These do not usually come with frequency counters.
Wow, feeling very appreciated – More thank-you’s
When people donate to the site it does make you feel like you’re providing something of interest to viewers. It spurs you on to create more content and yes, makes you feel appreciated in the efforts that you make. As I write this I was just soldering up a mini-project […]