---
product_id: 24037063
title: "HiLetgo 10pcs Mini RS232 to TTL MAX3232 to TTL Level Converter Board Serial Converter Board RS232 to TTL Serial"
brand: "hiletgo"
price: "98 Lei"
currency: RON
in_stock: true
reviews_count: 6
url: https://www.desertcart.ro/products/24037063-hiletgo-10pcs-mini-rs232-to-ttl-max3232-to-ttl-level
store_origin: RO
region: Romania
---

# 5V Input 10pcs Pack 0.5W Power HiLetgo 10pcs Mini RS232 to TTL MAX3232 to TTL Level Converter Board Serial Converter Board RS232 to TTL Serial

**Brand:** hiletgo
**Price:** 98 Lei
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence!

## Quick Answers

- **What is this?** HiLetgo 10pcs Mini RS232 to TTL MAX3232 to TTL Level Converter Board Serial Converter Board RS232 to TTL Serial by hiletgo
- **How much does it cost?** 98 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/24037063-hiletgo-10pcs-mini-rs232-to-ttl-max3232-to-ttl-level)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **🔧 Compact Design:** Miniature size for easy integration into any project.
- • **🌈 Eye-Catching Color:** Vibrant blue boards that stand out in your toolkit.
- • **🔄 Seamless Conversion:** Effortlessly convert RS232 to TTL signals for versatile applications.
- • **🔒 Reliable Performance:** Utilizes MAX3232CSE chip for stable and efficient operation.
- • **📈 Perfect for Professionals:** Ideal for engineers and hobbyists looking to enhance their projects.

## Overview

The HiLetgo 10pcs Mini RS232 to TTL MAX3232 Level Converter Board is designed for seamless signal conversion between RS232 and TTL levels. With a voltage range of 3V to 5V and powered by the reliable MAX3232CSE chip, this compact and efficient solution is perfect for both personal and professional projects. Each pack contains 10 units, making it a must-have for engineers and tech enthusiasts alike.

## Description

HiLetgo 10pcs Mini RS232 to TTL MAX3232 to TTL Level Converter Board Serial Converter Board RS232 to TTL Serial

## Features

- HiLetgo Level Converter Board Mini TTL Rs232
- Voltage Range: 3V ~ 5V
- Chip: MAX3232CSE

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Input Voltage | 5 Volts |
| Power Plug | No Plug |
| Nominal Power | 0.5 Watts |
| Connector Type Used on Cable | Serial Adapter |
| Specific Uses For Product | personal |
| Unit Count | 10.0 Count |
| Number of Items | 10 |
| Item Weight | 0.02 Kilograms |
| Package Quantity | 1 |
| Color | blue |

## Product Details

- **Compatible Devices:** Computer, Microcontroller, Devices with Serial Communication or TTL Signals
- **Specific Uses For Product:** personal
- **Connector Type:** Serial Adapter
- **Color:** blue
- **Brand:** HiLetgo

## Images

![HiLetgo 10pcs Mini RS232 to TTL MAX3232 to TTL Level Converter Board Serial Converter Board RS232 to TTL Serial - Image 1](https://m.media-amazon.com/images/I/61s-Lgo0BKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised, it's tiny, and it's a bargain!
*by L***Z on April 3, 2024*

Works fine. I was a little leery after reading some reviews, but read enough of them to avoid the potential issues. I'm using it to add 2 serial ports to a Raspberry Pi.Things to keep in mind:1) There are TWO converters, one on each face of the board. There's not enough room on the chip side to label which end is TTL and which is RS232 (did I mention it's tiny?), but it matches the other side which is clearly labeled.2) If you're not using the second converter, don't leave the input floating or it'll overheat. See other reviews for how to add a pullup resistor.3) I had no trouble attaching flexible 28 gauge wire to the small solder pads. I could see if you tried attaching larger or solid wire, or a component directly, it could be dicey.4) Some reviewers complained about mounting it, but it's easy if you attach all 8 wires first. Then connect power using the through-holes (I snipped leads from diodes for this), so the whole thing is suspended over your main PCB. I added a 3rd lead to the other side to secure it better.So don't let the other reviews scare you. It works, and good luck finding anything more compact or cheaper.

### ⭐ 330ma with only power and ground
*by P***R on January 18, 2021*

Way too much power draw on every one. They get so hot they’ll give you a burn. On each board the + pads are common as are the - pads and none of the pins are shorted.These are so difficult to work with I wouldn’t rate the very well even if they worked.

### ⭐⭐⭐ Some Overheat
*by R***F on March 15, 2024*

Some of these overheat. The problem is that they use a substitute MAX3232 chip that is missing an internal pull up on pins 9 and 10. Only half this chip is used on this board and pin 10 is not connected and floating. The result is that the chip can oscillate at a high frequency and overheat. The solution is to add a pull up resistor to V+ on pins 9 and 10. Any value from 20K to 400K will work. As only 1/2 the chip is used you can connect 9 and 10 together and that makes adding the resistor much easier. After the added resistor the boards seem to work fine.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-10*