RS232 Serial Terminal Kit with Arduino Uno
RS232 Serial Terminal Kit with Arduino Uno – Read Data from Legacy RS232 Devices
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Many older industrial machines, network switches, and embedded systems still speak RS232. With this kit, you’ll build a portable serial terminal that can plug into any RS232 port, capture the data stream, and display it on a 16x2 LCD—powered by an Arduino Uno and a MAX232 level shifter.
What You'll Build
You’ll assemble a fully functional RS232 terminal that connects to any legacy serial device, reads incoming ASCII data (like system logs or configuration prompts), and echoes it in real time on the LCD screen. The MAX232 converts the RS232 voltage levels to 5V TTL for the Arduino, while the I2C backpack simplifies the LCD wiring. Once built, you have a dedicated, battery-powered debug tool you can carry in your pocket.
What You'll Learn
- How to interface Arduino with RS232 using a MAX232 level shifter
- Sending and receiving serial data between devices with different voltage levels
- Displaying real-time data on an I2C LCD without complex wiring
- Reading and interpreting serial terminal output from legacy equipment
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| MAX232 Level Shifter | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 100nF Caps | 10 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| DB9 Connector | 1 |
| 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 ideal for CBSE Class 11-12 students exploring serial communication in their computer science or electronics curriculum, B.Tech ECE/EEE undergraduates working on embedded systems projects, and hobbyists preparing for competitions like Smart India Hackathon or ATL Tinkering Labs. It’s also a great hands-on tool for IIT, NIT, VIT, and BITS students who need to interface with legacy lab equipment.
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?
Scan the QR code to chat with the AI companion, which understands every connection in this project. You can also reach us on WhatsApp for human help within hours.
Can I connect this to a router or switch console port?
Yes, the DB9 connector fits most networking equipment console ports that use RS232. Just match the baud rate, and you’ll see the terminal output on the LCD.
Does this kit work with USB-to-RS232 adapters?
Absolutely. You can use a USB adapter as the data source—plug it into the DB9 connector and the kit will read and display whatever the adapter sends, great for testing.
What if my legacy device uses a 25-pin RS232 port?
A standard 25-pin to 9-pin adapter cable (not included) will convert the signal. The kit’s DB9 connector handles the standard 9-pin interface used by most modern retrofits.
MAX232 level shifter connects Arduino to legacy RS232 device. Reads and echoes characters on LCD.
What's in this kit
- Arduino Uno R3
- MAX232 Level Shifter
- 16x2 LCD
- I2C Backpack
- 100nF Caps x10
- 400-pt Breadboard
- M-M Wires x20
- DB9 Connector
- 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