A Simple and Ultra Low-cost Oscilloscope Built With an ATtiny85 and an OLED Display.

Oscilloscopes are essential tools in electronics, but they can be expensive and complex for beginners.

In this project, I built a compact and low-cost oscilloscope using an ATtiny85 and an OLED display.

This device is designed mainly for:

1. Learning electronics
2. Visualizing signals
3. Educational use in classrooms

It is simple, affordable, and a great way to understand how oscilloscopes work.

Full project and source code available here:

https://github.com/alecelular/nanoosciloscopio

- ATtiny85

- OLED display SSD1306 (I2C)

- Resistors

- Capacitors (if needed)

- Breadboard or PCB

- Jumper wires

- Power supply

Optional:

- Arduino (for programming the ATtiny85)

The circuit is simple and uses I2C communication for the OLED display.

Connect the OLED display to the ATtiny85 using the I2C pins.

This minimal setup makes the project easy to build.

You can program it using an Arduino as ISP.

Full source code available here:

https://github.com/alecelular/nanoosciloscopio

The oscilloscope samples the input signal and displays it as a waveform.

1. The signal is sampled periodically
2. The display shows voltage over time
3. Different time scales can be used

This allows basic visualization of electronic signals.

This project is ideal for learning basic electronics and signal visualization.

It can be used as a low-cost educational tool in classrooms.

If you found this useful, feel free to check the GitHub repository or suggest improvements.