Bench Power Supply Monitor Kit with Arduino Uno + LED
Build a Live Bench Power Supply Monitor with Arduino Uno and OLED Display
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 a dedicated display for your bench power supply that shows real-time voltage and current, tracks peak and average values, and can be customized for your projects? This kit transforms a basic Arduino Uno, an INA219 current sensor, and a crisp 0.96-inch OLED display into a precise monitoring instrument that sits right on your workbench. You'll learn sensor interfacing, data logging concepts, and create a tool you'll use every day.
What You'll Build
A functional bench PSU monitor with an OLED screen that reads out live voltage and current, displays peak values since power-on, and calculates average consumption — useful for debugging circuits, testing power supplies, or characterising component behaviour.
What You'll Learn
- Interface INA219 DC current/voltage sensor with Arduino over I2C
- Drive 0.96inch OLED displays using U8g2 library and custom fonts
- Implement real‑time data acquisition with peak detection and moving average algorithms
- Build a standalone, battery‑powered measurement instrument for your electronics workbench
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| INA219 | 1 |
| 0.96in OLED | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is perfect for CBSE Class 6–10 students exploring electronics under ATL Tinkering Labs, young makers building their first instrumentation project, and parents who want a fun, educational weekend build with their kids. B.Tech ECE/EEE freshmen will also appreciate a quick, hands‑on introduction to power monitoring.
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.
What if I get stuck during the build?
Our AI companion walks through each step, and if you're still stuck, you can send a WhatsApp message — we respond within hours.
Do I need any additional tools or equipment?
Yes, a USB cable (USB‑A to USB‑B) to upload code to the Arduino and a 9V battery are needed. A computer with the free Arduino IDE is required — installation is covered step by step by the AI companion.
Can I monitor my own bench power supply with this kit?
Absolutely. The INA219 can measure up to 26V and 3.2A, covering most hobbyist bench supplies. Just connect the supply's output to the monitor's input terminals.
How do I test if the INA219 sensor is working correctly?
The AI companion includes a simple diagnostic sketch that prints raw readings to the Serial Monitor. You can compare them with a multimeter or a known load — if values are off, the troubleshooting section guides you through I2C address checks and wiring verification.
INA219 monitors bench PSU voltage and current. OLED shows live values with peak and average tracking.
What's in this kit
- Arduino Uno R3
- INA219
- 0.96in OLED
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items