ECE Lab Kit 4 UART I2C SPI Communication
Learn UART, I2C, and SPI Communication on One Arduino — The ECE Lab Kit That Covers All Three Protocols
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine programming one Arduino to send live data over UART to your serial monitor, push the same numbers to a crisp OLED through I2C, and log every reading to an SD card via SPI — all in a single, working circuit. This kit turns the abstract theory of serial communication into a tangible project that you can demonstrate in lab viva, hackathon, or classroom session. It’s built for ECE students who need to understand how microcontrollers talk to multiple peripherals using different protocols simultaneously.
What You'll Build
You’ll assemble a prototype that reads a simulated sensor value and transmits it three ways. On your computer screen, you’ll see the value stream in real time through the UART-USB bridge. Inches away, a 0.96-inch OLED will display the same value with crisp I2C communication. Behind the scenes, the SPI-connected SD card module silently writes each data point into a CSV file — creating a permanent log you can analyze later. This mirrors real embedded systems where a single MCU manages displays, data storage, and debugging interfaces at once.
What You'll Learn
- Implement UART communication using a dedicated USB-UART module for serial debugging
- Drive an I2C OLED display to show live sensor data and custom text
- Use SPI protocol to read and write files on an SD card module
- Integrate all three protocols on the same Arduino without bus conflicts
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| 0.96in OLED | 1 |
| SD Card Module | 1 |
| UART-USB Module | 1 |
| MicroSD Card 4GB | 1 |
| Half Breadboard | 1 |
| USB Cable | 1 |
| M-M Wires | 30 |
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
Ideal for CBSE Class 11-12 students prepping for practical exams, B.Tech ECE/EEE learners who must demo serial protocols, and Smart India Hackathon teams prototyping embedded systems. ATL Tinkering Labs and instructors at IITs, NITs, VIT, or BITS Pilani will find this a ready-made teaching tool that replaces days of sourcing with a single, coherent build.
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?
Every kit includes a QR code to our AI build companion trained on this exact project. It offers step-by-step guidance, code snippets, and wiring checks. You can also reach us on WhatsApp for direct help from our maker team.
Can I use this kit for an engineering lab viva?
Absolutely. The project covers UART, I2C, and SPI — the three communication protocols most commonly asked in ECE vivas. You’ll have working demos with serial monitor output, OLED display, and SD card log ready to present.
Does this kit include pre-written Arduino code?
Yes. You’ll receive a fully commented sketch that initializes all three protocols, reads a dummy sensor value, and broadcasts it simultaneously over UART, I2C, and SPI. The code is easy to modify for your own sensors or data formats.
Is the SD card formatted and ready to use?
The 4GB microSD card comes pre-formatted in FAT32, so it works out of the box with the Arduino SD library. Instructions for re-formatting are included if you ever need to wipe it.
Three communication protocols on one Arduino — send data over UART to serial monitor, I2C to OLED, SPI to SD card.
What's in this kit
- Arduino Uno R3
- 0.96in OLED
- SD Card Module
- UART-USB Module
- MicroSD Card 4GB
- Half Breadboard
- USB Cable
- M-M Wires x30
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
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