{"product_id":"3-digit-common-cathode-0-5-7-segment-display-module-multiplexed","title":"3 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed)","description":"\u003cp\u003e\u003cspan\u003eThis is a 3 Digit 7-segment display project that contains 3 x Common Cathode displays, current limiting resistors or each LED segment, 3 x PNP Transistor on each common cathode for multiplexing etc. The project works with 5V TTL signals but can be optimized for 3.3V operations by reducing the current limiting resistors' value.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eMultiplexed Display Info\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Multiplexed_display\"\u003ehttps:\/\/en.wikipedia.org\/wiki\/Multiplexed_display\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePIN 1 NC (VCC-NO USE)\u003c\/li\u003e\n\u003cli\u003ePIN 2 SEGMENT A\u003c\/li\u003e\n\u003cli\u003ePIN 3 SEGMENT B\u003c\/li\u003e\n\u003cli\u003ePIN 4 SEGMENT C\u003c\/li\u003e\n\u003cli\u003ePIN 5 SEMENT D\u003c\/li\u003e\n\u003cli\u003ePIN 6 SEGMENT E\u003c\/li\u003e\n\u003cli\u003ePIN 7 SEGMENT F\u003c\/li\u003e\n\u003cli\u003ePIN 8 SEGMENT G\u003c\/li\u003e\n\u003cli\u003ePIN 9 DP\u003c\/li\u003e\n\u003cli\u003ePIN 10 DISPLAY 1 CATHODE (BC847 BASE)\u003c\/li\u003e\n\u003cli\u003ePIN 11 DISPLAY 2 CATHODE (BC847 BASE)\u003c\/li\u003e\n\u003cli\u003ePIN 12 DISPLAY 3 CATHODE (BC847 BASE)\u003c\/li\u003e\n\u003cli\u003ePIN 13 GND\u003c\/li\u003e\n\u003cli\u003ePIN 14 NC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eArduino Code\u003c\/h3\u003e\n\u003cp\u003eArduino code is provided to test the board. The user will be able to create a \u003cstrong\u003e0 to 5V DC Voltmeter\u003c\/strong\u003e using this code. Upload the code to Arduino Uno, apply 0 to 5V to Analog Pin \u003cstrong\u003eA0\u003c\/strong\u003e to Measure the voltage. Refer Arduino pin configuration vs display bellow:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDigital Pin D12 = Display 1 Cathode\u003c\/li\u003e\n\u003cli\u003eDigital Pin D11 = Display 2 Cathode\u003c\/li\u003e\n\u003cli\u003eDigital Pin D10 = Display 3 Cathode\u003c\/li\u003e\n\u003cli\u003eDigital Pin D2 = Display Segment A\u003c\/li\u003e\n\u003cli\u003eDigital Pin D3 = Display Segment B\u003c\/li\u003e\n\u003cli\u003eDigital Pin D4 = Display Segment C\u003c\/li\u003e\n\u003cli\u003eDigital Pin D5 = Display Segment D\u003c\/li\u003e\n\u003cli\u003eDigital Pin D6 = Display Segment E\u003c\/li\u003e\n\u003cli\u003eDigital Pin D7 = Display Segment F\u003c\/li\u003e\n\u003cli\u003eDigital Pin D8 = Display Segment G\u003c\/li\u003e\n\u003cli\u003eDigital Pin D9 = Display Segment DP\u003c\/li\u003e\n\u003cli\u003eAnalog Pin Input = A0 5V Meter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47246715584684,"sku":"D116","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/D116B.jpg?v=1789809482","url":"https:\/\/dotfry.com\/products\/3-digit-common-cathode-0-5-7-segment-display-module-multiplexed","provider":"dotfry","version":"1.0","type":"link"}