OLED Oscilloscope Waveform Kit with Arduino Uno — Turn Analog Signals Into Visual Insights

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Ever wanted to see the invisible world of electrical signals? This kit transforms an Arduino Uno into a miniature oscilloscope that plots waveforms live on an OLED display. Adjust the trigger level with a potentiometer to stabilize glitchy signals — just like a benchtop instrument, but pocket-sized and built by you.

What You'll Build

A real-time waveform monitor that samples analog voltage through the Arduino's ADC, graphs it across 128x64 pixels, and refreshes fast enough to display audio tones, sensor outputs, or any low-frequency signal. You’ll turn two knobs — one to set the vertical scale and one to dial in the trigger point — and watch the waveform lock. Perfect starter instrument for your electronics workbench.

What You'll Learn

• How analog-to-digital conversion (ADC) samples a continuous signal and turns it into digital values the Arduino can plot
• Plotting points on an OLED display using the Adafruit SSD1306 library and efficient buffer management
• Implementing a trigger in code — using a potentiometer threshold to freeze repetitive waveforms on screen
• Reading analog sensors, mapping knob positions to display scales, and calibrating your instrument

Kit Contents