The original autor is "AZ Delivery": https://www.az-delivery.de/en/blogs/azdelivery-blog-fur-arduino-und-raspberry-pi/funktionsgenerator-mit-dem-esp32-teil1
- With Arduino IDE
- With Visual Studio Code (recommended)
- Frequency: 20 - 20000Hz
- Adjustable ratio for Rectangle and Triangle signals
- Triangle, Rectangle and Sine signals
- Output pin is 26
- 0 - 3.3V only!
- Controlled by serial signals (see Serial Monitor)