{"product_id":"8-bit-red-common-cathode-led-bar-graph-module","title":"8-Bit Red Common Cathode LED Bar Graph Module","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eProduct Name\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e8-Bit Red Common Cathode LED Bar Graph Module (3.3V \/ 5V)\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e8-bit LED bar graph module\u003c\/strong\u003e features \u003cstrong\u003eeight red LEDs in a common cathode configuration\u003c\/strong\u003e, designed for clear visual indication in electronic projects. Each LED can be controlled independently, making the module suitable for displaying levels, status indicators, and simple visual effects.\u003c\/p\u003e\n\u003cp\u003eThe module can be \u003cstrong\u003einserted directly into a breadboard\u003c\/strong\u003e, allowing easy integration into prototyping and DIY development environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommon cathode configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e8 individual LED bars\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndependent LED control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBreadboard-compatible design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for DIY electronics and prototyping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003ePacking List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1 × DC 3–24V 8-bit Red Common Cathode LED Bar Module\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Color\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Configuration\u003c\/td\u003e\n\u003ctd\u003eCommon Cathode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of LEDs\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003eUp to 20mA per LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e30mm × 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSolder pads for direct connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDisplaying numerical data (e.g., sensor readings, battery levels)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSystem and device status indication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimple animations or visual indicators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEducational projects and DIY kits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eUsage Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eEach LED has an \u003cstrong\u003eanode pin\u003c\/strong\u003e and shares a \u003cstrong\u003ecommon cathode\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTo turn on an LED, connect the \u003cstrong\u003ecommon cathode to ground\u003c\/strong\u003e and apply a \u003cstrong\u003epositive voltage to the anode\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse a \u003cstrong\u003ecurrent-limiting resistor\u003c\/strong\u003e in series with each anode to control LED current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure microcontroller pin current limits are not exceeded when powering directly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBasic Wiring Guide\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eConnect the \u003cstrong\u003ecommon cathode pin\u003c\/strong\u003e to ground\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConnect each LED \u003cstrong\u003eanode pin\u003c\/strong\u003e to a positive voltage through an appropriate resistor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeep the supply voltage within the rated range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAlways use current-limiting resistors to protect the LEDs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"38-3D","offers":[{"title":"Default Title","offer_id":51351130865960,"sku":"8Bit_Common_C_LED_Bar","price":3.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/7581\/0600\/files\/8-Bit-Red-Common-Cathode-LED-Bar-Graph-Module.jpg?v=1778401381","url":"https:\/\/th.38-3d.co.uk\/products\/8-bit-red-common-cathode-led-bar-graph-module","provider":"38-3D","version":"1.0","type":"link"}