---
product_id: 79347136
title: "DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU"
brand: "dsd tech"
price: "€ 36.22"
currency: EUR
in_stock: true
reviews_count: 7
category: "Dsd Tech"
url: https://www.desertcart.hr/products/79347136-dsd-tech-sh-u12-rs485-to-ttl-5v-board-max13487
store_origin: HR
region: Croatia
---

# 500Kbps ultra-fast data rate Supports up to 128 slave devices 15KV ESD & TVS overvoltage protection DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU

**Brand:** dsd tech
**Price:** € 36.22
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with pro-grade RS485 speed and protection!

## Quick Answers

- **What is this?** DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU by dsd tech
- **How much does it cost?** € 36.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/79347136-dsd-tech-sh-u12-rs485-to-ttl-5v-board-max13487)

## Best For

- dsd tech enthusiasts

## Why This Product

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

## Key Features

- • **Peace of Mind Warranty:** Backed by a 12-month warranty and responsive 24-hour support to keep your innovations running.
- • **Rock-Solid Reliability:** Built with MAX13487 chip and fortified by 15KV ESD & TVS protection to safeguard your projects.
- • **Scalable Network Power:** Easily connect and control up to 128 slave devices—perfect for complex IoT and robotics setups.
- • **Plug & Play Versatility:** Effortlessly integrates with Raspberry Pi, Arduino, and other MCUs for instant RS485 network access.
- • **Blazing Fast Connectivity:** Experience lightning-speed 500Kbps transmission for seamless multi-device communication.

## Overview

The DSD TECH SH-U12 RS485 to TTL 5V Board, featuring the MAX13487 chip, delivers ultra-fast 500Kbps data transmission with robust 15KV ESD and TVS overvoltage protection. Designed for Raspberry Pi, Arduino, and other MCUs, it supports multi-machine communication with up to 128 slave devices, making it ideal for advanced robotics and IoT applications. Backed by a 12-month warranty and responsive customer support, this compact 5.08 x 1.78 cm board ensures reliable, scalable connectivity for professional-grade projects.

## Description

With this RS485 to TTL board, you can quickly connect to the RS485 network, suitable for Raspberry Pi, Arduino,Robot and other MCU. Main Chip: MAX13487 from MAXIM Lead PINS: RS485: A +, B-, GND 5V TTL: GND,RXD,TXD,5V0 HIGH QUALITY With 15KV ESD protection and TVS(Transient Voltage Suppressor) overvoltage protection. High speed Transmission rate up to 500Kbps, Support multi-machine communication, allowing up to 128 slave devices Packing List: 1 X SH-U12 TTL to RS485 Board WARRANTY: DSD TECH back this TTL to RS485 Board with 12 months warranty.If you meet any question, Please contact us, We will fix your issue within 24 hours.

Review: these are the nuts - using them for all sorts of projects, i.e. communicating between 2x arduinos or 2x teensys. Great bit of kit.
Review: this solved my RS485 connection problem - I tried several ways to get an RS485 anemometer to work with an ESP32 mcu. This adapter finally solved my problem. Once I had it hooked up, it worked. Plus very fast delivery.

## Features

- With this RS485 to TTL board, you can quickly connect to the RS485 network, suitable for Raspberry Pi, Arduino,Robot and other MCU
- Main chip is MAX13487 from MAXIM, High stability.LED indication for TXD,RXD, Power
- With 15KV ESD protection and TVS overvoltage protection
- Transmission rate up to 500Kbps, Support multi-machine communication, allowing up to 128 slave devices
- WARRANTY:DSD TECH back this RS485 to TTL board with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B667STP |
| Best Sellers Rank | 62,029 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 557 in Motherboards |
| Guaranteed software updates until | unknown |
| Item model number | SH-U12 |
| Manufacturer | DSD TECH |
| Product Dimensions | 5.08 x 1.78 x 1.78 cm; 15 g |

## Images

![DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU - Image 1](https://m.media-amazon.com/images/I/61FpiuI3MbL.jpg)
![DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU - Image 2](https://m.media-amazon.com/images/I/61NoR8QrkHL.jpg)
![DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU - Image 3](https://m.media-amazon.com/images/I/61g7WQ1CZNL.jpg)
![DSD TECH SH-U12 RS485 to TTL 5V Board With MAX13487 Chip for Raspberry Pi Arduino and other MCU - Image 4](https://m.media-amazon.com/images/I/71SOrOZKXwL.jpg)

## Questions & Answers

**Q: Are there any instructions on how to use it? Send or receive Messages?**
A: This is a "well behaved" product which seems to meet its specifications.  I recommend this product for what it does.  It works well for both send and receive.  I have several of them.

Serial communications can be a bit "tricky" so if you are not familiar with it, I recommend either a book or research on the internet.  A full discussion of this subject is a bit beyond this forum.  Good luck.

**Q: Would it work with rs422?**
A: Currently, only RS485 is supported.

**Q: this item include the cables on the picture?**
A: I don't know what picture you are looking at but - probably.  The package included a 4 conductor cable approximately 12 inches long.  It is designed to plug into the "TTL" end.

**Q: Does the tx go into high-z (tri-state) when not transmitting, so it can be used on modbus or multi-drop lines?**
A: Yes.  It works well with Modbus multi-drop lines as long as your "master" is working according to spec.  For the price, just try it to be sure it works for you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ these are the nuts
*by C***S on 24 April 2023*

using them for all sorts of projects, i.e. communicating between 2x arduinos or 2x teensys. Great bit of kit.

### ⭐⭐⭐⭐⭐ this solved my RS485 connection problem
*by W***B on 13 August 2020*

I tried several ways to get an RS485 anemometer to work with an ESP32 mcu. This adapter finally solved my problem. Once I had it hooked up, it worked. Plus very fast delivery.

### ⭐⭐⭐⭐⭐ Review
*by B***3 on 5 February 2024*

Gutes Produkt, kommt in einer ordentlichen Verpackung. Funktionalität einwandfrei. Im Gegensatz zu MAX485 muss beim MAX13487 Chip die Übertragungsrichtung nicht händisch geschaltet werden was sehr bequem ist. Zu den negativen Punkten: es wäre wünschenswert den Durchmesser der Montagelöcher in der Produktbeschreibung mit anzugeben. Diese sind M2 (Grüße an denjenigen der diese Frage mit "kann ich nicht sagen" beantwortet hat: eine solche Antwort hilft _überhaupt_ nicht weiter). Und da wäre noch der Preis. Günstigere MAX13487-Alternativen funktionieren genauso gut (vielleicht nicht bei Randbedingungen wie dem versprochenen 15kV ESD-Schutz, dies müsste aber extra getestet werden). Also als Einzelbestellung an der Preisschmerzgrenze noch OK. Wenn man aber mehrere davon braucht, wird's schnell happig.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-21*