{"title":"SparkFun 7-Segment Serial Display - Blue","handle":"sparkfun-7-segment-serial-display-blue","url":"/products/sparkfun-7-segment-serial-display-blue","description":"The SparkFun 7-Segment Serial Display combines a 4-digit 7-segment LED display with an ATmega328 microcontroller, allowing you to control every segment using just a few serial lines. It supports three communication interfaces — Serial TTL, SPI, and I²C — making it easy to integrate into a wide range of projects.\n\nThe on-board ATmega328 comes pre-loaded with the Arduino bootloader, so the display can also be programmed for stand-alone operation via the FTDI header. Power and I²C pins are positioned on the sides of the board for daisy-chaining multiple displays, and mounting holes are included for secure installation.\n\nKey Features\n\n\n4-Digit Blue 7-Segment Display – Alpha-numeric characters, numbers, and special symbols\n\nThree Serial Interfaces – TTL, SPI, and I²C\n\nIndividual Segment Control – Control each segment, decimal point, apostrophe, and colon independently\n\nAdjustable Brightness – Selectable via serial command, saved to non-volatile memory\n\nSelectable Baud Rate – Also retained in non-volatile memory\n\nATmega328 with Arduino Bootloader – Programmable for stand-alone operation\n\nDaisy-Chainable – Side-mounted power and I²C pins for multi-display setups\n\nMounting Holes – For standoff mounting\n\n\nSpecifications\n\n\nDisplay – 4-digit, 7-segment, blue LED\n\nInterfaces – Serial TTL, SPI, I²C\n\nMicrocontroller – ATmega328 (Arduino bootloader)\n\nDimensions – 41 × 23 mm (1.6\" × 0.9\")\n\n\nPackage Contents\n\n1× SparkFun 7-Segment Serial Display (Blue)\n\n\nResources\n\nSchematic\nDatasheet\nHookup Guide\nGitHub Repo\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11551,"title":"Default Title","sku":"SF-COM-11442","price":33.27,"on_sale":false,"in_stock":true,"available_quantity":170,"option1":"Default Title"}]}