Current Draw Meter Kit with Arduino Uno — Track mA and mAh in Real Time

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

Turn curiosity into a practical tool. The Current Draw Meter Kit lets you build a precision instrument that measures exactly how much current any battery-powered device pulls, displaying live milliamps and accumulating milliamp‑hours on a bright LCD. Whether you’re testing how long a remote‑control car really runs on a fresh set of batteries or auditing the idle drain of a USB charger, this kit puts lab‑grade insight in your hands.

What You'll Build

You’ll assemble a fully functional DC power monitor that sits in‑line between any 5 V–36 V source and your gadget. The ACS712 current sensor detects the flow and sends a voltage signal to the Arduino Uno; your code converts that into milliamps and continuously sums mAh. The 16×2 I2C LCD refreshes both values in real time — giving you an always‑on window into your device’s power appetite.

What You'll Learn

• Interface an ACS712 Hall‑effect current sensor with Arduino Uno
• Write code that calculates live milliamps and cumulative mAh
• Connect and program a 16×2 LCD using the I2C backpack
• Apply fundamental power concepts: watts, amp‑hours, and energy consumption

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

CBSE Class 11–12 students exploring practical electricity and electronics concepts will find it a perfect project. B.Tech ECE/EEE first‑years can use it as a simple lab experiment. Mentors at ATL Tinkering Labs and science clubs will appreciate how quickly it turns a breadboard into a real measurement tool, while home hobbyists get a handy mAh logger for battery‑life experiments.

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.