Construct a High-Resolution Scanning Fluorescence Microscope with Arduino Mega

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

For researchers, engineering students, and dedicated makers, this kit empowers you to build a true scanning fluorescence microscope. By rastering a 365 nm UV spot across a sample and capturing the emitted fluorescence with a BPW34 photodiode, you reconstruct a digital image on the 2.4-inch TFT display. Tune the analog front‑end, calibrate stepper motor microsteps, and map fluorophore distribution at a resolution impossible to achieve with conventional wide‑field optics alone.

What You'll Build

A self-contained fluorescence microscope that scans sample slides in an XY grid, records emission intensity point‑by‑point, and displays a reconstructed image in real time. The Arduino Mega orchestrates two NEMA 17 steppers via A4988 drivers and the CNC Shield, while the LM358 op‑amp chain amplifies the photodiode signal before 16‑bit ADC conversion. All control parameters and image preview appear on the ILI9341 screen.

What You'll Learn

• Assemble and calibrate a two‑axis stepper stage with sub‑millimeter repeatability using GRBL‑inspired motion firmware on Arduino Mega
• Design a three‑stage analog signal chain with LM358 op‑amps to condition photodiode output for the ADS1115 ADC
• Convert raw scan data into a pixel‑mapped fluorescence image and render it on a TFT display
• Troubleshoot noise, stray light, and stepping artifacts in a sensitive optomechanical system

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

B.Tech ECE or EEE students prototyping a final‑year project on low‑cost biomedical imaging, M.Sc. Physics researchers exploring fluorescence instrumentation without a ₹5‑lakh commercial microscope, Smart India Hackathon teams building point‑of‑care diagnostic tools, and ATL Tinkering Lab mentors guiding advanced optics experiments. If you can read a schematic and solder SMD op‑amps, this kit will stretch your skills.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

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.