SMD Dot Matrix Advertising Screen Kit 256 LED 5V DC Pre-Programmed Microcontroller DIY Electronics Row Scanning PCB Board for Customizable Signage Displays
Direct purchase from the factory 
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Parthonn Zalem Porthun Rupam Miletat. Poth Kharch Parthonn Zainat.Amkam Email: service@roymall.com va Whatsapp: +8619359849471Product Name: SMD dot matrix advertising screen kit
PCB Board Size: 97mm x 85mm
Power Supply: DC 5V
Display Unit: 256 LEDs (0805 Red LED), arranged in a dot matrix pattern
Control Method: Row-by-row scanning
Note: This is an unassembled kit, you need to solder and assemble.
Feature:
The kit consists of 256 0805 SMD LEDs to form a display unit. It can display 256 pixels, such as Chinese characters, by row and column scaimiiig.
The kit comes with a microcontroller with a pre-programmed program. The startup display mode is: All lights up -love symbol - "You are great" character advertisement.Then repeat the above display content.
The microcontroller program of this kit has been burned, and the effect can be achieved after welding.
The source program is not provided. Since the main component of the kit is LED, tlie circuit is relatively simple and can be assembled in one go.
Circuit principle: The control core of the circuit is the microcontroller U1, which continuously transmits row scanning data to U2 and U3 through the written program, and transmits display data to U4 and U5, there by controlling the display screen to display the corresponding pattern regularly.
Features:
1. Pre-programmed Microcontroller Included: The set comes with a microcontroller that has been pre-programmed to display predefined patterns such as full screen, heart-shaped, and text advertisements.
2. 256 Pixel Display: Capable of rendering complex shapes and text through its matrix of 256 LEDs, providing clear and customizable visual output.
3. Simple Configuration: Designed for easy assembly, with straightforward electrical components and no additional programming required after soldering.
4. Row Scanning Technology: Ensures optimized LED performance, providing efficient and consistent light emission across the matrix.
5. Compact Size: The compact board size (97mm x 85mm) makes it ideal for a variety of applications, from desktop setups to integrated larger designs.
Package Includes:
1x Fixed Capacitor
6x Chip Capacitors
256x Red LED
16x Chip Resistors
16x Chip Transistors
1x STC15F104W SMD Chip
4x 74HC595D SMD Chip
12x Pin Headers
1x PCB Board
1x Power Cable
