{"product_id":"gc9b72-2-1-inch-round-tft-lcd-display-module","title":"GC9B72 2.1-Inch Round TFT LCD Display Module","description":"\u003cp\u003eThis 2.1-inch round TFT LCD module provides a circular colour display for embedded dashboards, gauges and custom user interfaces. The product is listed as GAC9B72; GC9B72 is the controller name used in available driver documentation. Check the controller and resolution printed on the supplied PCB before choosing software.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay format:\u003c\/strong\u003e 2.1-inch round TFT LCD module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController reference:\u003c\/strong\u003e GC9B72; confirm the board's printed marking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface reference:\u003c\/strong\u003e SPI on documented GC9B72 breakout versions; verify the supplied board's connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e Not independently confirmed for this stock. The linked driver targets boards marked 360×360; do not select 480×480 merely from screen size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply and logic:\u003c\/strong\u003e Verify the module specification before wiring. The linked 360×360 reference board uses 3.3 V and is not a guide for applying 5 V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTouch:\u003c\/strong\u003e Touch functionality is not specified for this listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e One display module as pictured; host controller and connection cables are separate unless specified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePin Functions — Reference Guide\u003c\/h2\u003e\u003cp\u003eThe following names appear on the documented 10-pad GC9B72 module. Match them to the labels on your actual board; this table does not establish physical pin order.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLabel\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGND \/ VCC\u003c\/td\u003e\n\u003ctd\u003eGround \/ module power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSCL \/ SDA\u003c\/td\u003e\n\u003ctd\u003eSPI clock \/ MOSI data on the reference module; these labels do not indicate I²C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRST \/ DC \/ CS\u003c\/td\u003e\n\u003ctd\u003eReset \/ data-command select \/ chip select\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL\u003c\/td\u003e\n\u003ctd\u003eBacklight connection; verify drive requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSDO \/ TE\u003c\/td\u003e\n\u003ctd\u003eOptional data output \/ tearing-effect synchronization on reference boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDriver and Documentation\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/github.com\/MaliosDark\/Arduino_GC9B72\" target=\"_blank\" rel=\"noopener\"\u003eGC9B72 Arduino driver, reference pinout and ESP32-S3 wiring example\u003c\/a\u003e — a third-party software project for boards marked GC9B72, 360×360. It has not been tested against this stock. A verified official module datasheet is not currently provided. Confirm the controller, voltage and resolution before following any example.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs the name GC9B72 or GAC9B72?\u003c\/h3\u003e\u003cp\u003eGC9B72 is the controller name in the linked driver documentation. GAC9B72 was the original listing spelling; verify the delivered PCB marking.\u003c\/p\u003e\n\u003ch3\u003eWhat is the screen size?\u003c\/h3\u003e\u003cp\u003eThe listing is for a 2.1-inch round TFT LCD module.\u003c\/p\u003e\n\u003ch3\u003eIs it 360×360 or 480×480?\u003c\/h3\u003e\u003cp\u003eThe exact stock resolution has not been independently verified. Read the PCB or supplier specification before configuring your driver.\u003c\/p\u003e\n\u003ch3\u003eCan I use an Arduino or ESP32?\u003c\/h3\u003e\u003cp\u003eUse a controller with compatible logic levels, enough memory and a matching GC9B72 driver. The linked project provides an ESP32-S3 example for its reference panel.\u003c\/p\u003e\n\u003ch3\u003eAre SDA and SCL I²C connections?\u003c\/h3\u003e\u003cp\u003eOn the documented SPI module, they mean MOSI data and SPI clock. Check the actual module rather than assuming I²C.\u003c\/p\u003e\n\u003ch3\u003eDoes it have a touchscreen?\u003c\/h3\u003e\u003cp\u003eTouch is not specified for this product.\u003c\/p\u003e\n\u003ch3\u003eWhy is the screen blank?\u003c\/h3\u003e\u003cp\u003eCheck supply, ground, backlight requirements, reset, wiring and the exact controller initialization sequence. A driver for a similar display may not work.\u003c\/p\u003e\u003cdiv\u003e\n\u003c!-- related-displays-start --\u003e\u003ch2\u003eRelated TFT and OLED Displays\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/gc9a01-1-28-inch-round-tft-display-240x240-spi\"\u003eGC9A01 1.28-Inch Round TFT LCD Display 240x240 SPI\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/0-96-inch-oled-display-module-12864\"\u003e0.96 Inch I2C OLED Display Module 128x64\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-3-inch-monochrome-oled-display-4-pin-i2c\"\u003e1.3-Inch Monochrome OLED Display Module – 4-Pin I2C\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompare screen size, display technology, interface, voltage, resolution and driver support before choosing a module. These displays are alternatives, not direct pin-compatible replacements.\u003c\/p\u003e\n\u003c!-- related-displays-end --\u003e\n\u003c\/div\u003e","brand":"Embeded Studio","offers":[{"title":"Default Title","offer_id":62731752636786,"sku":"ES-GC9B72-21-ROUND-TFT","price":1700.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/GAC9B722.1INCHROUNDTFT.webp?v=1793815209","url":"https:\/\/embededstudio.com\/products\/gc9b72-2-1-inch-round-tft-lcd-display-module","provider":"Embeded Studio","version":"1.0","type":"link"}