--- product_id: 93505992 title: "2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display)" brand: "onyehn" price: "£14.40" currency: GBP in_stock: true reviews_count: 7 category: "Onyehn" url: https://www.desertcart.co.uk/products/93505992-2pcs-max7219-dot-matrix-module-red-light-4-in-1 store_origin: GB region: Great Britain --- # 12.8x3.3x1.3cm 5V Power Cascading Support 2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) **Brand:** onyehn **Price:** £14.40 **Availability:** ✅ In Stock ## Summary > ✨ Illuminate Your Ideas with MAX7219! ✨ ## Quick Answers - **What is this?** 2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) by onyehn - **How much does it cost?** £14.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/93505992-2pcs-max7219-dot-matrix-module-red-light-4-in-1) ## Best For - onyehn enthusiasts ## Why This Product - Trusted onyehn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🔧 Built to Last:** 64 fixed screw holes ensure stability and durability in any project. - • **📈 Expand Your Vision:** Support for multiple modules to create larger, eye-catching displays. - • **🔄 Seamless Integration:** Easily connects with Arduino microcontrollers for versatile applications. - • **🌟 Brighten Up Your Space:** Vibrant red LED display that captures attention and sparks joy. - • **🎨 Unleash Your Creativity!:** Perfect for DIY Christmas decorations and custom displays. ## Overview The 2pcs MAX7219 Dot Matrix Module is a versatile 4-in-1 display solution designed for Arduino microcontrollers. With a compact size of 12.8x3.3x1.3cm and a 5V operating voltage, this module features a vibrant red LED display, 64 fixed screw holes for secure mounting, and the ability to cascade multiple modules for larger displays. Ideal for DIY projects, especially during the festive season! ## Description Wiring Instructions: A single module can drive a 8x8 dot matrix common cathode Operating Voltage: 5V Dimensions: 12.8X3.3X1.3cm(5.04X1.3X0.51in) Fixing screws with 64 holes with a diameter 3mm Module with input and output interfaces, support for cascading multiple modules The left side of the module to the input port, the right to an output port When the control of a single module, simply input port connected to CPU When a plurality of cascaded modules, input and output termination CPU, an input terminal of the second output end of the first module a module, the first two modules of the input terminal of the three termination modules, and so on... 51 microcontrollers, for example: VCC 5V GND GND DIN P2.2 CS P2.1 CLK P2.0 Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package list: 2x MAX7219 Dot Matrix Module 4-in-1 2x 20cm DuPont line 5pin Review: Nice and bright! Not too difficult to get working. - I soldered both modules together with very short, stiff jumpers (removed plastic and bent included 90 degree pins) to make 1 long display. It works very well once I figured out how to properly configure everything. I'm adding these to my list of "known good and useful" Arduino accessories for future purchases! The only thing that could make these better is if the seller would just send them for free! :) I used a NANO, so your setup may be a little different... I couldn't find the answers easily out there in Arduino land, so I'm including what I used to get it all working with both the example Ticker sketch and my clock program in case you too are having issues. #include #include #include and for both displays connected together I needed: //constants will not change ... const int pinCS = 10; // Using Arduino NANO! Attach CS to this pin(10), DIN to MOSI(11) and CLK to SCK(13) const int numberOfHorizontalDisplays = 8; // 2x 4 module panels attached together const int numberOfVerticalDisplays = 1; ... and in void setup() matrix.setPosition(0, 7, 0); // The first display is at matrix.setPosition(1, 6, 0); // The second display is at matrix.setPosition(2, 5, 0); // The third display is at matrix.setPosition(3, 4, 0); //... matrix.setPosition(4, 3, 0); //... matrix.setPosition(5, 2, 0); //... matrix.setPosition(6, 1, 0); //... matrix.setPosition(7, 0, 0);// And the last display is at // ... matrix.setRotation(0, 1); // The first display is horizontal matrix.setRotation(1, 1); //... matrix.setRotation(2, 1); //... matrix.setRotation(3, 1); //... matrix.setRotation(4, 1); //... matrix.setRotation(5, 1); //... matrix.setRotation(6, 1); //... matrix.setRotation(7, 1);// The same for the last display Rotation was necessary because the library still expects each 8x8 module to be individual modules with the pins on top and bottom, instead of on the sides like these are. This works only if the incoming data lines are on the right hand side when looking at the LEDs I hope this was helpful! If it was, consider giving it a thumbs up! And don't forget to like and sub... wait, this isn't a YouTube script! Sorry about that! Thanks for watching! Review: Works and looks good. - I used them for a little Arduino alarm clock project. Screens work great, easy to get them working, and putting them behind tinted glass makes effect even better. They do draw a lot of current when powered to full brightness, so I recommend connecting 5V power directly to the screens - so they don't draw everything from arduino's USB port, and a 2A power supply at least. At full brightness they get warm. Since this project will make screens work all the time, I will update the review if they start failing. ## Features - 🌟Dimension of Module: 12.8X3.3X1.3cm(5.04X1.3X0.51in) - 🌟Operating voltage: 5V - 🌟A single module can drive a 8x 8 dot matrix common cathode - 🌟64 fixed screw holes with 3mm in its diameter - 🌟Equipped with input and output interfaces, support for multiple modules to cascade ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KQ31FX6 | | Additional Features | Portable | | Aspect Ratio | 16:9 | | Best Sellers Rank | #6,107 in Single Board Computers (Computers & Accessories) | | Brand | Onyehn | | Built-In Media | [Custom] 2x MAX7219 Dot Matrix Module 4-in-1, 2x 20cm DuPont line 5pin | | CPU Model Number | No | | Color | Red | | Compatible Devices | Arduino microcontrollers | | Connectivity Technology | USB | | Customer Reviews | 4.1 4.1 out of 5 stars (110) | | Display Resolution Maximum | 3840x2160 | | Display Type | LED | | Graphics Card Interface | Integrated | | Graphics Description | Dedicated | | Hard Disk Description | HDD | | Hard Disk Interface | USB 2.0 | | Hardware Interface | 3.0 V TTL | | Human-Interface Input | Buttons | | Item Weight | 0.22 Pounds | | Manufacturer | Onyehn | | Model Name | 8541612868 | | Model Number | 8541612868 | | Native Resolution | 3840 x 2160 | | Number of Component Outputs | 2 | | Operating System | All Windows Server Versions 2000 | | Personal Computer Design Type | Mini PC | | Power Plug Type | Type A - 2 pin (North American) | | Processor Brand | No | | Processor Count | 1 | | Processor Series | Atom | | Processor Socket | No | | Processor Speed | 1 Hz | | RAM Type | DDR4 SDRAM | | Resolution | 3840 x 2160 | | Screen Size | 4 Inches | | Specific Uses For Product | Versatile Applications | | Total Usb Ports | 1 | | Video Output | DisplayPort | | Video Output Interface | DisplayPort | | Video Processor | Intel | | Wireless Compability | Infrared | ## Product Details - **Brand:** Onyehn - **CPU Model:** Atom - **CPU Speed:** 1 Hz - **Graphics Card Description:** Dedicated - **Included Components:** [Custom] 2x MAX7219 Dot Matrix Module 4-in-1, 2x 20cm DuPont line 5pin - **Model Name:** 8541612868 - **Operating System:** All Windows Server Versions 2000 - **Personal computer design type:** Mini PC - **Screen Size:** 4 Inches - **Specific Uses For Product:** Versatile Applications ## Images ![2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) - Image 1](https://m.media-amazon.com/images/I/717VrT2ppxL.jpg) ![2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) - Image 2](https://m.media-amazon.com/images/I/6123vDwBRFL.jpg) ![2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) - Image 3](https://m.media-amazon.com/images/I/51OV2SZBmKL.jpg) ![2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) - Image 4](https://m.media-amazon.com/images/I/61o-2PabcqL.jpg) ![2pcs MAX7219 Dot Matrix Module(Red Light) 4 in 1 Display for Arduino Microcontroller with 5Pin Line(Christmas Decoration DIY Letters Electronic Display) - Image 5](https://m.media-amazon.com/images/I/61UmHr3jUEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice and bright! Not too difficult to get working. *by D***E on August 4, 2019* I soldered both modules together with very short, stiff jumpers (removed plastic and bent included 90 degree pins) to make 1 long display. It works very well once I figured out how to properly configure everything. I'm adding these to my list of "known good and useful" Arduino accessories for future purchases! The only thing that could make these better is if the seller would just send them for free! :) I used a NANO, so your setup may be a little different... I couldn't find the answers easily out there in Arduino land, so I'm including what I used to get it all working with both the example Ticker sketch and my clock program in case you too are having issues. #include #include #include and for both displays connected together I needed: //constants will not change ... const int pinCS = 10; // Using Arduino NANO! Attach CS to this pin(10), DIN to MOSI(11) and CLK to SCK(13) const int numberOfHorizontalDisplays = 8; // 2x 4 module panels attached together const int numberOfVerticalDisplays = 1; ... and in void setup() matrix.setPosition(0, 7, 0); // The first display is at <0, 0> matrix.setPosition(1, 6, 0); // The second display is at <1, 0> matrix.setPosition(2, 5, 0); // The third display is at <2, 0> matrix.setPosition(3, 4, 0); //... matrix.setPosition(4, 3, 0); //... matrix.setPosition(5, 2, 0); //... matrix.setPosition(6, 1, 0); //... matrix.setPosition(7, 0, 0);// And the last display is at <7, 0> // ... matrix.setRotation(0, 1); // The first display is horizontal matrix.setRotation(1, 1); //... matrix.setRotation(2, 1); //... matrix.setRotation(3, 1); //... matrix.setRotation(4, 1); //... matrix.setRotation(5, 1); //... matrix.setRotation(6, 1); //... matrix.setRotation(7, 1);// The same for the last display Rotation was necessary because the library still expects each 8x8 module to be individual modules with the pins on top and bottom, instead of on the sides like these are. This works only if the incoming data lines are on the right hand side when looking at the LEDs I hope this was helpful! If it was, consider giving it a thumbs up! And don't forget to like and sub... wait, this isn't a YouTube script! Sorry about that! Thanks for watching! ### ⭐⭐⭐⭐⭐ Works and looks good. *by P***R on January 25, 2020* I used them for a little Arduino alarm clock project. Screens work great, easy to get them working, and putting them behind tinted glass makes effect even better. They do draw a lot of current when powered to full brightness, so I recommend connecting 5V power directly to the screens - so they don't draw everything from arduino's USB port, and a 2A power supply at least. At full brightness they get warm. Since this project will make screens work all the time, I will update the review if they start failing. ### ⭐ Not as pictured *by D***K on November 6, 2025* NOT AS PICTURED. Once upon a time these modules had the LED matrices mounted so there was no gap between panels. Now there's a massive gap between the 8x8 panels which makes them completely useless for animation displays. They don't fit into the established footprint for these modules, and the panel gaps are egregious. You can fix these by cutting and filing the circuit board between the panel elements, then re-soldering jumper wires between boards and 3d printing a support bracket to hold the thing together. 2 hours of extra work per unit because the mfg changed designs and the seller continues to advertise the previous design. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/93505992-2pcs-max7219-dot-matrix-module-red-light-4-in-1](https://www.desertcart.co.uk/products/93505992-2pcs-max7219-dot-matrix-module-red-light-4-in-1) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-05-01*