Up-cycling a cheap Christmas tree’s lights
Video on upgrading some cheap battery powered lights on a Christmas tree. Source code further down. Source code
Be James Bond with ESP32 Cam / Spy Camera
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 […]
Gyro (Position) sensors (MPU6050) with Arduino – How to access Pitch, Roll and Yaw angles
The video below goes through the details, underneath the video you will find the sample code, a circuit diagram and an affiliate parts list. The MPU6050 is a versatile unit that can measure its orientation and it’s acceleration in all three dimensions. However did have difficulty in finding a user […]
Writing your own ESP32 I2S WAV Player – Part 5 – Mixing sounds
In this, the last episode on making our own wav player we are going to look at how we can mix multiple sounds together. If you haven’t seen the previous articles in this series then this is highly recommened as they contain circuit digrams and show the other aspects of […]
I2S Player (Part 4) : Adding volume control
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
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
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
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
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.
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.