--- product_id: 367516572 title: "LED 7 Segment Display, MODBUS-RTU Display Module, 4 Digits Display with RS485 Serial Port for PLC Communication (5-36V)" brand: "hyuduo" price: "123.14 DT" currency: TND in_stock: true reviews_count: 7 category: "Hyuduo" url: https://www.desertcart.tn/products/367516572-led-7-segment-display-modbus-rtu-display-module-4-digits store_origin: TN region: Tunisia --- # RS485 Modbus-RTU serial port 4-digit precision display Adjustable red LED brightness LED 7 Segment Display, MODBUS-RTU Display Module, 4 Digits Display with RS485 Serial Port for PLC Communication (5-36V) **Brand:** hyuduo **Price:** 123.14 DT **Availability:** βœ… In Stock ## Summary > πŸ”΄ Illuminate your data with precision and power! ## Quick Answers - **What is this?** LED 7 Segment Display, MODBUS-RTU Display Module, 4 Digits Display with RS485 Serial Port for PLC Communication (5-36V) by hyuduo - **How much does it cost?** 123.14 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/367516572-led-7-segment-display-modbus-rtu-display-module-4-digits) ## Best For - hyuduo enthusiasts ## Why This Product - Trusted hyuduo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Power Flexibility:** Wide DC input range from 5V to 36V adapts effortlessly to diverse industrial setups. - β€’ **Durable & Lightweight:** High-quality ABS frame and copper terminals combine robustness with portability. - β€’ **Precision at a Glance:** 4-digit 7-segment display with customizable decimal points for exact data visualization. - β€’ **Seamless Connectivity:** RS485 serial port with Modbus-RTU protocol ensures smooth PLC communication and integration. - β€’ **Effortless Installation:** Specially designed frame allows quick embedding into devices, saving valuable setup time. ## Overview This LED 7 Segment Display module features a 4-digit red LED readout with customizable decimal points and brightness. It communicates via RS485 serial port using the Modbus-RTU protocol, supporting a wide DC power range of 5-36V. Designed for easy embedding with a sturdy ABS frame and copper terminals, it’s built for reliable industrial and PLC applications. ## Description desertcart.com: LED 7 Segment Display, MODBUS-RTU Display Module, 4 Digits Display with RS485 Serial Port for PLC Communication (5-36V) : Industrial & Scientific Review: fast shipping . worked great - worked great Review: looks great, but can't set it up - No documentation. imposible to set it up. ## Features - [Specification] This display is a 4-digits 7-segement display with decimal point. It has RS485 Serial Port and its communication protocol is Modbus-RTU. The power input of this display is DC 5-36V. - [High Accuracy] The display has decimal point funtion, and the position of decimal point and baud rate could be customized, which ensures the accuracy of display. - [Easy to Install] The display with special-designed frame can be embeded on other device, it is convenient and quick to install. - [Red LED] This display module consists red LED tube, and its brightness can be set, which is very practical. - [High Quality] The frame of this display is made of high quality ABS material, so the display module is lightweight and sturdy. The terminals of the serial ports is made of high quality copper. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B093SZMYC2 | | Accessory Connection Type | default | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #433,384 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #105 in LED Segment Displays | | Customer Reviews | 3.1 3.1 out of 5 stars (8) | | Date First Available | April 29, 2021 | | Finish | Finish | | Handle Material | default | | Included Components | inc | | Installation Method | InstallationMethod | | Item Package Quantity | 1 | | Item Weight | 2.11 ounces | | Manufacturer | Hyuduo | | Material | Material | | Part Number | Hyuduo1ycf369vob1241 | | Power Source | PowerSource | | Product Dimensions | 0.39 x 0.39 x 0.39 inches | | Spout Height | 1 Centimeters | ## Images ![LED 7 Segment Display, MODBUS-RTU Display Module, 4 Digits Display with RS485 Serial Port for PLC Communication (5-36V) - Image 1](https://m.media-amazon.com/images/I/71ZfbtWvlqL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ fast shipping . worked great *by B***Y on April 4, 2023* worked great ### ⭐ looks great, but can't set it up *by A***T on January 25, 2025* No documentation. imposible to set it up. ### ⭐⭐⭐ Reverse engineering may be required *by J***T on April 28, 2025* The functionality and price of this product are excellent. Unfortunately, as others have noted, it is very difficult to find any technical information (e.g., no manual, no customer support, etc.). Thanks to other reviews here and elsewhere I was able to piece together enough information to use it (e.g., default node/slave ID is 1, baud rate is 9600, write to holding register 0 to set the number 0-9999 to be displayed). However, the information was not complete or entirely correct, so I am adding my notes also: * Register mapping: 0: number to be displayed: values 0-9999 map to 0000 to 9999, as expected. -1 to -999 can be displayed as well (2's complement, e.g., 64537 = -999). For positive values there are leading zeros, for negative ones the minus sign appears on the left then blanks are padded until the first non-zero digit. While I didn't find a proper way to disable leading zeros, I did notice that sending 20000 to 20999 displays _000 to _999 (one leading zero suppressed, though I suspect it is a glitch / accident / coincidence. 1: Decimal point position (0 for none, 1 for XXX.X, ... did not test much) -- stored [persists after power loss] 2: Brightness -- stored [persists after power loss] 3-5: unknown function 6: Setting to 0 causes blinking; setting 256 causes steady (non-blinking) illumination stored [persists after power loss] 7: Baud rate 0-7 (1200, ..., 115200) 8: Slave/Node ID 0-255 (did not try setting the high byte in the register to anything other than 0) 9-255: unknown * Registers appear to "wrap around" after 255, e.g., setting "register 256" is equivalent to setting "register 0" * When the device is first powered-on it will display its node/slave ID using the first (left-most) digits and its baud rate code using the last (right-most) digit. e.g., 2557 means node 255/0xFF using baud rate code 7 for 115200 bps. * Device uses STC8G1K08 microcontroller and TM1650 segment driver ## Frequently Bought Together - LED 7 Segment Display, MODBUS-RTU Display Module, 4 Digits Display with RS485 Serial Port for PLC Communication (5-36V) - RS485 Display, 0.56 Inch 4 Digit LED Display RS485 Serial Port Tester Communication MODBUS-RTU/ASCII Protocol 30mA DC 7 ~ 36V - USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/367516572-led-7-segment-display-modbus-rtu-display-module-4-digits](https://www.desertcart.tn/products/367516572-led-7-segment-display-modbus-rtu-display-module-4-digits) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-04-27*