Arduino based Firmware for ESP32 custom board https://github.com/esp32pcb/hodiny .

Shows digital clock on 4x8x8 matrix display.

Tested on Arduino v1.8.19, eps32 v2.0.3 https://github.com/espressif/arduino-esp32 Board: ESP32 Dev Module

Upload speed: 921600, CPU Freq: 240MHz, Flash Freq: 80MHz

During programming phase ........ button BOOT needs to be pressed for a while.

Licence: MIT, author: Vaclav Juchelka vjuchelka@gmail.com

This code for Arduino was mostly created by ChatGPT4.

This software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.

The user acknowledges and agrees that all use of this software is at their own risk. The software is provided free of charge and, as such, the developer makes no guarantees or promises regarding its functionality, stability, or suitability for any particular purpose. The user is solely responsible for any and all consequences of using this software including but not limited to any damage or data loss.