Be James Bond with ESP32 Cam / Spy Camera

December 7, 2020 XTronical 0

An intro to using the ESP32 Camera module. Very simple to set up and use, this example uses the is the AI Thinker Module. Camera’s are ridiculously cheap and small nowadays and with small power consumption you could use them from battery power for many hours. The video below takes […]

I2S Player (Part 4) : Adding volume control

August 25, 2020 XTronical 3

In this article we add in volume control and go through the principles of changing the volume of digital samples. Video covering everything just below, source code/circuit even further below! If you’ve not seen the previous episodes then these are essential reading/watching. This was the last one – or use […]

ESP32 I2S Part 3 – Playing Wavs from SD Cards

August 21, 2020 XTronical 9

A detailed look at how to play WAV’s from SD without using 3rd party libraries for transfer of WAV’s to I2S. It should give you enough detail to add this into your own code/wav players. Video Below which goes through everything and sources code/diagrams afterwards. INTROAs always time-codes are available […]

I2S on ESP3 – Part 2, WAV’s

August 11, 2020 XTronical 0

In this article/episode we are going to follow on from the last one on I2S and get our software to play back some music. We’ll look at the WAV file format and how we can get the data out and send it over I2S. If you haven’t read/watched the previous […]

ESP32 – Intro to I2S Part 1

August 1, 2020 XTronical 17

This is the first in a series of videos and articles explaining I2S and how to use with the ESP32. This opening episode keeps it very simple just using the included standard Espressiv libraries. In the video there is a full explanation of how I2S is implemented followed by a […]

Improving our ESP32 MP3 Player

June 17, 2020 XTronical 1

We saw in the last instalment (here) how to simply play an MP3 on our ESP32. In this article/video we look at how to add volume control and to play all the MP3’s that we put on the root directory of our SD card (ignoring anything else). The video below […]

ILI9341 SD card or other problems with ESP32? Try this.

June 10, 2020 XTronical 0

A quick rough and ready one take video of a solution to a problem I had when I had several components on my board and a “as delivered” ILI9341. Until the extra components went on everything was fine, then it wasn’t…. Here’s my solution to the problem.