Arduino-Powered Bench Electroplating Controller Kit - Constant Current, Temperature & Coulomb Counter

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

Electroplating demands absolute precision. A tiny drift in current or bath temperature can ruin a deposition, leaving you with blistered, uneven, or non-adherent metal layers. This kit transforms a standard Arduino Uno into a professional bench controller that actively regulates current through the bath-not with guesswork, but with true closed-loop feedback from an INA219 high-side sensor. While you're plating, an MCP4725 DAC sets the exact MOSFET gate voltage needed to maintain your setpoint, a DS18B20 probe watches the electrolyte temperature, and a 16x2 LCD ticks off coulombs in real time. You're not just assembling another gadget; you're building the instrument that guarantees mirror-finish copper, nickel, silver, or gold every time.

What You'll Build

By the end of the build, you'll have a self-contained bench-top electroplating controller. It connects to your bath anode and cathode, draws from a 12?V 5?A PSU, and lets you dial in a current target. The system holds that current steady even as bath resistance shifts, displays instantaneous coulombs (total charge passed) on the LCD, and logs temperature-corrected data to a microSD card with timestamps from the DS3231 RTC. You can walk away from the plating tank and know exactly how much metal has been deposited when you return.

What You'll Learn

• High-side current sensing with INA219 and mapping ADC readings to real mA for tight feedback
• Programming an MCP4725 DAC to drive an IRF540N MOSFET in its linear region-building a true constant-current source
• One-wire temperature acquisition from a DS18B20 probe and compensating coulomb counts for thermal drift
• Time-stamped data logging to SD card using a DS3231 RTC, plus wiring a 16�2 LCD over I2C to create a live dashboard

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Advanced hobbyists restoring antique metalwork, B.Tech ECE/EEE final-year students fabricating precise lab instruments, research scholars in materials science who need repeatable deposition conditions, and high-end makers running small-batch gold-plating of connectors or jewelry. The design fits Smart India Hackathon hardware tracks and is tough enough for long-term use in university labs at IIT, NIT, VIT or BITS Pilani.

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.