{"product_id":"64led-256led-red-display-led-smd-dot-matrix-advertising-screen-kit-smt-component-welding-practice-board-diy-parts","title":"64LED 256LED Red Display LED SMD Dot Matrix Advertising Screen SMT","description":"\u003cp\u003eDiscover the 64LED 256LED Red Display LED SMD Dot Matrix Advertising Screen SMT, a standout decor pick designed for dependable everyday performance and lasting value.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eBrand Name: Aideepen\u003c\/p\u003e\u003cp\u003eDIY Supplies: Electrical\u003c\/p\u003e\u003cp\u003eElectronic: No\u003c\/p\u003e\u003cp\u003eMaterial: Plastic\u003c\/p\u003e\u003cp\u003eSemi-finishedproduct: No\u003c\/p\u003e\u003cp\u003eProduct Features:\u003c\/p\u003e\u003cp\u003e1. Innovative circuit design with strong educational appeal, ideal for beginner soldering practice and hands-on training.\u003c\/p\u003e\u003cp\u003e2. Double-sided fiberglass tin-plated board made of high-strength material, supporting repeated disassembly and reassembly.\u003c\/p\u003e\u003cp\u003e3. Pre-programmed microcontroller for seamless teaching and competition use.\u003c\/p\u003e\u003cp\u003e4. Available in 64\/256 LED configurations, capable of displaying characters and patterns.\u003c\/p\u003e\u003cp\u003e5. Comprehensive component selection with surface-mount technology enhances hands-on and electronics practical skills.\u003c\/p\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eSupply Voltage: DC 4-5V\u003c\/p\u003e\u003cp\u003eDisplay Color: Red\u003c\/p\u003e\u003cp\u003eDimensions:\u003c\/p\u003e\u003cp\u003e64 LED: 60*49mm\u003c\/p\u003e\u003cp\u003e256 LED: 96*85mm\u003c\/p\u003e\u003cp\u003eCircuit Overview:\u003c\/p\u003e\u003cp\u003eModel 1: 64 LED (88 Components) Advertising Display Soldering Practice Kit\u003c\/p\u003e\u003cp\u003eThis kit features a display unit composed of 64 0805 surface-mount LEDs. Using row-column scanning, it can display any 64-pixel character, such as numbers. The kit includes a pre-programmed microcontroller. Upon power-up, it displays: vertical row-by-row illumination → full-screen illumination with 2 flashes → horizontal row-by-row illumination → sequential countdown display of characters 9-0 for advertising. This sequence repeats. To modify the display content, omit soldering the included microcontroller. Instead, inject control signals via interface JP1 to display custom content. (Refer to our store's 8x8 dot matrix documentation for compatibility; the microcontroller interface is identical. This interface requires separate procurement and is not included in the kit.) The circuit includes 64 SMD LEDs, 8 row driver transistors, 8 current-limiting resistors, 2 serial expansion chips, 1 microcontroller chip, 1 SMD electrolytic capacitor, and 4 SMD high-frequency capacitors—totaling 88 components and 202 solder joints.\u003c\/p\u003e\u003cp\u003eModel 2: 256 LED (300 Components) Advertising Screen Soldering Practice Kit\u003c\/p\u003e\u003cp\u003eThis kit features a display unit composed of 256 0805 surface-mount LEDs. Using row-column scanning, it can display any 256-pixel character, such as Chinese characters. The kit includes a pre-programmed microcontroller. The startup sequence is: row-by-row illumination → full-screen illumination with 2 flashes → sequential display of the character advertisement “You're the best” → heart symbol flashing 3 times. This sequence repeats. To modify the display content, omit soldering the included microcontroller. Instead, inject control signals via interface JP1 to display custom content. (Refer to our store's 16x16 dual-color dot matrix documentation for compatibility—the microcontroller interface is identical. This interface requires separate procurement; it is not included in the kit.) The circuit includes 256 surface-mount LEDs, 16 row driver transistors, 16 current-limiting resistors, 4 serial expansion chips, 1 microcontroller chip, 1 surface-mount electrolytic capacitor, and 6 surface-mount high-frequency capacitors. Total: 300 components, 678 solder joints.\u003c\/p\u003e\u003cp\u003eCircuit Principle:\u003c\/p\u003e\u003cp\u003eThe control core is the microcontroller U1. It continuously transmits row scan data to U2 and display data to U3 via pre-programmed instructions, thereby controlling the display to show patterns in a regular sequence.\u003c\/p\u003e\u003cp\u003eInstallation Notes:\u003c\/p\u003e\u003cp\u003eAll components must be mounted flush with the PCB surface. Pay attention to the polarity orientation of integrated circuits, LEDs, transistors, and electrolytic capacitors. The circuit board provides test points J1-J5 for extended applications such as waveform measurement and voltage testing. Operating voltage: 4-5V. As the kit primarily consists of LEDs and features a relatively simple circuit, assembly is typically straightforward. The microcontroller program is pre-programmed; results appear immediately after soldering. Source code is not provided.\u003c\/p\u003e\u003cp\u003eProduct List:\u003c\/p\u003e\u003cp\u003e1X Soldering Practice Kit\u003c\/p\u003e\u003cp\u003eNote: This product is a DIY kit, not a finished product. This soldering project requires basic electronics knowledge and hands-on skills.\u003c\/p\u003e\u003ch3\u003eOptions\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e 256 LED, 64 LED\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the 64LED 256LED Red Display LED SMD Dot Matrix Advertising?\u003c\/h4\u003e\u003cp\u003eA: The 64LED 256LED Red Display LED SMD Dot Matrix Advertising is a quality decor pick. Innovative circuit design with strong educational appeal, ideal for beginner soldering practice and hands-on training.\u003c\/p\u003e\u003ch4\u003eQ: What is the 64LED 256LED Red Display LED SMD Dot Matrix Advertising made of?\u003c\/h4\u003e\u003cp\u003eA: The 64LED 256LED Red Display LED SMD Dot Matrix Advertising is made from Plastic Semi-finishedproduct, measuring 64 LED.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the 64LED 256LED Red Display LED SMD Dot Matrix Advertising?\u003c\/h4\u003e\u003cp\u003eA: The 64LED 256LED Red Display LED SMD Dot Matrix Advertising stands out in our decor range — Double-sided fiberglass tin-plated board made of high-strength material, supporting repeated disassembly and reassembly.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the 64LED 256LED Red Display LED SMD Dot Matrix Advertising?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 64LED 256LED Red Display LED SMD Dot Matrix Advertising is a quality decor pick. 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