Are there any instructions on how to use it? Send or receive Messages?

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.

Would it work with rs422?

Currently, only RS485 is supported.

this item include the cables on the picture?

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.

Does the tx go into high-z (tri-state) when not transmitting, so it can be used on modbus or multi-drop lines?

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.

Dsd Tech Sh U12 Rs485 To Ttl 5v Board Max13487

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 40.43

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Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Connect smarter, scale faster, and protect like a pro!

BUILT TO LAST - Robust 15KV ESD and TVS overvoltage protection keeps your setup safe and sound
ROCK SOLID STABILITY - Powered by MAX13487 chip for unmatched reliability in your IoT projects
SCALE WITHOUT LIMITS - Connect up to 128 slave devices for complex multi-machine networks
INSTANT STATUS INSIGHT - Integrated LED indicators for TXD, RXD, and power keep you in control
LIGHTNING FAST DATA FLOW - Experience blazing 500Kbps transmission speeds for seamless communication

The DSD TECHSH-U12 RS485 to TTL 5V Board features the high-performance MAX13487 chip, delivering stable and fast data transmission up to 500Kbps. Designed for Raspberry Pi, Arduino, and other MCUs, it supports multi-machine communication with up to 128 slave devices. Enhanced with 15KV ESD and TVS overvoltage protection and LED status indicators, this compact 5.08 x 1.78 cm board ensures reliable, scalable, and safe connectivity for your advanced electronics projects.

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€ 40.43

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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ASIN	B07B667STP
Best Sellers Rank	#55,870 in Computers ( See Top 100 in Computers ) #889 in Single-Board Computers
Item model number	SH-U12
Manufacturer	DSD TECH
Product Dimensions	5.08 x 1.78 x 1.78 cm; 15 g

DSD TECH SH-U12 RS485 to TTL 5V Board with MAX13487 Chip for Raspberry Pi Arduino and Other MCU

Description

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Common Questions