{"product_id":"hub75-rgb-matrix-adapter-board-for-esp32-raspberry-pi","title":"HUB75 RGB Matrix Adapter Board for ESP32 \u0026 Raspberry Pi","description":"\u003ch1\u003eHUB75 Adapter Board for ESP32 and Raspberry Pi\u003c\/h1\u003e\n\u003ch2\u003e\n\u003ca href=\"https:\/\/vetco.net\/products\/64x32-color-led-matrix-screen-rgb-for-esp32-arduino-or-raspberry-pi?_pos=4\u0026amp;_sid=2414b0c19\u0026amp;_ss=r\" title=\"LED RGB MATRIX SCREEN\" rel=\"noopener\" target=\"_blank\"\u003eRGB Matrix\u003c\/a\u003e Adapter Board with Buffered Level Shifting\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRGB Matrix Adapter Board (E), Rev 2.2\u003c\/strong\u003e is a buffered \u003cstrong\u003eHUB75 adapter board\u003c\/strong\u003e for connecting 3.3V logic controllers to the required 5V HUB75 \u003ca href=\"https:\/\/vetco.net\/products\/64x32-color-led-matrix-screen-rgb-for-esp32-arduino-or-raspberry-pi?_pos=4\u0026amp;_sid=2414b0c19\u0026amp;_ss=r\" title=\"RGB MATRIX PANEL\" rel=\"noopener\" target=\"_blank\"\u003eRGB LED matrix panels\u003c\/a\u003e. It is designed for \u003ca href=\"https:\/\/vetco.net\/products\/esp32-development-board-usb-c-wifi-bluetooth-38-pin\" title=\"38 PIN ESP32\" rel=\"noopener\" target=\"_blank\"\u003e38 pin ESP32 development boards\u003c\/a\u003e, Raspberry Pi computers, and other 3.3V microcontrollers used in programmable LED matrix projects.\u003c\/p\u003e\n\u003cp\u003eOnboard 74HCT245 buffer and line-driver ICs perform \u003cstrong\u003e3.3V to 5V level shifting\u003c\/strong\u003e across all 13 HUB75 signal lines. This buffered level translation produces cleaner digital signals than directly connecting a 3.3V controller to a 5V matrix panel, helping eliminate ghosting, dim pixels, and other display artifacts.\u003c\/p\u003e\n\u003ch2\u003eESP32 HUB75 Adapter with V2.x GPIO Mapping\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eESP32 HUB75 adapter\u003c\/strong\u003e is designed to seat a classic \u003ca href=\"https:\/\/vetco.net\/products\/esp32-development-board-usb-c-wifi-bluetooth-38-pin\" title=\"38 PIN ESP32\" rel=\"noopener\" target=\"_blank\"\u003e38-pin ESP32-DevKitC\u003c\/a\u003e style module. It provides a complete GPIO-to-HUB75 interface using the board's V2.x pin mapping, simplifying wiring for LED matrix displays, scrolling signs, dashboards, animations, and interactive projects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFirmware pin definitions must match the board revision.\u003c\/strong\u003e Earlier V1.x versions use a different GPIO mapping. This Rev 2.2 adapter uses the V2.x mapping and must be configured accordingly in the selected HUB75 driver library.\u003c\/p\u003e\n\u003ch2\u003eHUB75 Level Shifter for 3.3V Controllers\u003c\/h2\u003e\n\u003cp\u003eStandard HUB75 LED matrix panels typically expect 5V logic signals, while ESP32, Raspberry Pi, and many modern microcontrollers output 3.3V logic. A direct connection may work inconsistently or produce ghosting and dim-pixel artifacts. This \u003cstrong\u003eHUB75 level shifter\u003c\/strong\u003e uses 74HCT245 devices to buffer and translate the control signals to reliable 5V logic levels.\u003c\/p\u003e\n\u003cp\u003eThe board can also serve as a \u003cstrong\u003eRaspberry Pi HUB75 adapter\u003c\/strong\u003e or a buffered interface for other compatible 3.3V logic platforms. Raspberry Pi and general microcontroller installations require appropriate external wiring based on the documented V2.x GPIO-to-HUB75 pinout.\u003c\/p\u003e\n\u003ch2\u003eRGB LED Matrix Power Requirements\u003c\/h2\u003e\n\u003cp\u003eThe connected HUB75 RGB LED matrix panel must be powered by its own dedicated 5V power supply. The panel power ground and adapter board ground must be tied together to establish the common ground reference required for reliable signal operation.\u003c\/p\u003e\n\u003cp\u003eThe adapter is intended for signal interfacing and level translation. It does not replace the high-current 5V supply required by an RGB LED matrix panel.\u003c\/p\u003e\n\u003ch2\u003eHUB75 Firmware and Panel Configuration\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRGB LED matrix adapter\u003c\/strong\u003e works with common HUB75 driver libraries for ESP32, Raspberry Pi, and other supported controllers. Firmware settings vary by panel type, scan configuration, and driver IC.\u003c\/p\u003e\n\u003cp\u003eFor FM6126A-based matrix panels, a typical starting configuration includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnable the FM6126A panel driver\u003c\/li\u003e\n\u003cli\u003eSet clock phase, or \u003cstrong\u003eclkphase\u003c\/strong\u003e, to false\u003c\/li\u003e\n\u003cli\u003eUse a minimum refresh rate of approximately 150 Hz for clean output\u003c\/li\u003e\n\u003cli\u003eSelect the Rev 2.2 V2.x GPIO mapping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA product reference manual and setup wiki are available for detailed pinouts, wiring information, and configuration guidance.\u003c\/p\u003e\n\u003ch2\u003eHUB75 Adapter Board Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/vetco.net\/products\/esp32-development-board-usb-c-wifi-bluetooth-38-pin\" title=\"ESP32 38PIN\" rel=\"noopener\" target=\"_blank\"\u003eESP32-driven\u003c\/a\u003e RGB LED matrix displays (Requires \u003ca href=\"https:\/\/vetco.net\/products\/esp32-development-board-usb-c-wifi-bluetooth-38-pin\" title=\"ESP32 38 PIN\" rel=\"noopener\" target=\"_blank\"\u003e38 Pin ESP32\u003c\/a\u003e For plug and play)\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi LED matrix projects\u003c\/li\u003e\n\u003cli\u003eScrolling text and animated message signs at high FPS\u003c\/li\u003e\n\u003cli\u003eReal-time dashboards and status displays\u003c\/li\u003e\n\u003cli\u003eInteractive lighting and digital art installations\u003c\/li\u003e\n\u003cli\u003eMaker electronics and microcontroller projects\u003c\/li\u003e\n\u003cli\u003eReducing ghosting and dim-pixel artifacts on HUB75 panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRGB Matrix Adapter Board Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBuffered HUB75 adapter board and RGB matrix interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Version\u003c\/td\u003e\n\u003ctd\u003eRGB Matrix Adapter Board (E), Rev 2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Mapping\u003c\/td\u003e\n\u003ctd\u003eV2.x mapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHost Logic Level\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Signal Level\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowered Level Shifting\u003c\/td\u003e\n\u003ctd\u003e3.3V to 5V on all 13 HUB75 signal lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffer IC Type\u003c\/td\u003e\n\u003ctd\u003e74HCT245 buffer and line-driver ICs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Host Compatibility\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/vetco.net\/products\/esp32-development-board-usb-c-wifi-bluetooth-38-pin\" title=\"ESP32 38 PIN\" rel=\"noopener\" target=\"_blank\"\u003eClassic 38-pin ESP32-DevKitC\u003c\/a\u003e style modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Host Compatibility\u003c\/td\u003e\n\u003ctd\u003eRaspberry Pi and other 3.3V logic microcontrollers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Interface\u003c\/td\u003e\n\u003ctd\u003eHUB75 RGB LED matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Power\u003c\/td\u003e\n\u003ctd\u003eDedicated external 5V power supply required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrounding\u003c\/td\u003e\n\u003ctd\u003eAdapter and LED panel grounds must be connected together\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Dimensions\u003c\/td\u003e\n\u003ctd\u003e70 x 60 mm (2.76 x 2.36 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.05 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClaude Code Files\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/HUB75_Adapter_Board_SPEC.md?v=1787780696\" target=\"_blank\" title=\"Claude MD File\" rel=\"noopener\"\u003eHUB75_Adapter_Board_SPEC.md\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":48021557215369,"sku":"VUPN15","price":34.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn15_a_hub75-rgb-matrix-adapter-board-for-esp32-raspberry-pi.jpg?v=1787779795","url":"https:\/\/vetco.net\/products\/hub75-rgb-matrix-adapter-board-for-esp32-raspberry-pi","provider":"Vetco Electronics","version":"1.0","type":"link"}