---
product_id: 48884389
title: "NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V)"
brand: "nulsom"
price: "€ 0.17"
currency: EUR
in_stock: false
reviews_count: 2
url: https://www.desertcart.hr/products/48884389-nulsom-ultra-compact-rs232-to-ttl-converter-with-male-db9
store_origin: HR
region: Croatia
---

# Ultra compact size 3.3V to 5V support 4-pin connectivity NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V)

**Brand:** nulsom
**Price:** € 0.17
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Transform Your Connections with Ease!

## Quick Answers

- **What is this?** NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V) by nulsom
- **How much does it cost?** € 0.17 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48884389-nulsom-ultra-compact-rs232-to-ttl-converter-with-male-db9)

## Best For

- nulsom enthusiasts

## Why This Product

- Trusted nulsom brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Installation:** Features through-hole pins for straightforward integration into your projects.
- • **Space-Saving Design:** Ultra compact dimensions (15 x 14 mm) fit into any project without bulk.
- • **Reliable Connectivity:** Includes a sturdy Male DB9 connector for secure connections.
- • **Enhanced Compatibility:** Supports a wide range of power supplies (3V to 5.5V) for maximum flexibility.
- • **Seamless Voltage Adaptation:** Effortlessly switch between 3.3V and 5V for versatile applications.

## Overview

The Ultra Compact RS232 to TTL Converter is designed for seamless integration in various electronic projects, featuring a Male DB9 connector and a compact size of just 15 x 14 mm. It supports a power supply range of 3V to 5.5V, making it ideal for both 3.3V and 5V applications. With reliable connectivity and easy installation through its pin configuration, this converter is a must-have for tech-savvy professionals.

## Description

This adapter helps to convert TTL (Transistor-Transistor Logic) level signals to RS232 interface. This converter has a Male DB9 connector (NS-RS232-02: B00OPU2QJ4) and a plastic Hood Kit.  Suitable for use with most microcontrollers, 300 to 115,200 bps (up to 230,400 bps).  Compatible with Arduino, Raspberry Pi, and any micro controller, such as PIC, Atmel, STM or other system with TTL serial communications.  Operate with 3V to 5.5V power supply. You can use this on both your 3.3V and 5V projects.  Perfect for any RS232 to TTL electronic projects.  The operating temperature range: -40°C to +85°C  RTS (Board) > T2IN (SP3232EEY) T2OUT > Pin 7 (Male DB-9 connector)  CTS (Board)  Please disconnect this module while uploading as this is shared with Arduino's digital pins 0 and 1 for the serial communication. This can be connected and used after the sketch code has been uploaded.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | NulSom |
| Product Dimensions | 1.5 x 1.4 x 0.3 cm; 6 g |
| Item model number | NS-RS232-02-H |
| Manufacturer | NulSom Inc. |
| Are Batteries Included | No |
| Item Weight | 6 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Compatible devices:** Arduino, Microcontrollers, Raspberry Pi
- **Specific uses for product:** Microcontroller Projects, Arduino, Raspberry Pi, TTL Serial Communications
- **Connector type:** db9
- **Item dimensions L x W x H:** 15 x 14 x 3 millimetres
- **Brand:** NulSom

## Images

![NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V) - Image 1](https://m.media-amazon.com/images/I/710e0TioxzL.jpg)
![NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V) - Image 2](https://m.media-amazon.com/images/I/71QmTx8hFOL.jpg)
![NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V) - Image 3](https://m.media-amazon.com/images/I/71pDeyHNLlL.jpg)
![NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V) - Image 4](https://m.media-amazon.com/images/I/71jNybM7zdL.jpg)
![NulSom Ultra Compact RS232 to TTL Converter with Male DB9 and Hood Kit (3.3V to 5V) - Image 5](https://m.media-amazon.com/images/I/71ljPq11O5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product that we use in one of our control systems
*by G***. on 13 June 2024*

Pity it has been unavailable from Amazon for a long time and even now it’s not stocked in UK

### ⭐⭐⭐⭐⭐ Five Stars
*by C***. on 11 August 2015*

This is a great little device works just fine with the RPi

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**Shop now:** [https://www.desertcart.hr/products/48884389-nulsom-ultra-compact-rs232-to-ttl-converter-with-male-db9](https://www.desertcart.hr/products/48884389-nulsom-ultra-compact-rs232-to-ttl-converter-with-male-db9)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-08*