Build Your Own Safe Oscilloscope Probe Adapter with Arduino Nano

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

With this kit, you will assemble a fully protected BNC probe adapter that turns any Arduino Nano into a real-time waveform display. It uses a precision 10:1 voltage divider and diode clamping to safeguard your microcontroller while you measure signals up to 50 V. Ideal for students and makers who need a portable diagnostic tool without the cost of a dedicated oscilloscope.

What You'll Build

A compact, shield-like adapter board that accepts standard BNC oscilloscope probes. The built-in OLED screen shows live voltage readings and waveform traces, while the protection circuitry ensures your Arduino Nano survives accidental overvoltages. Once assembled, you’ll have a reliable bench instrument for testing sensors, audio signals, and low-frequency circuits.

What You'll Learn

• Designing and implementing a 10:1 voltage divider for high-voltage measurement
• Using 1N4148 diodes for input clamping and ESD protection
• Programming Arduino’s analog input to read and display signals on an OLED
• Soldering through-hole components and building a permanent prototype on PCB board

Kit Contents

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.