{"title":"SparkFun 7-Segment Serial Display - Red","handle":"sparkfun-7-segment-serial-display-red","url":"/products/sparkfun-7-segment-serial-display-red","description":"A 4-digit 7-segment display with a built-in ATmega328 microcontroller, controllable via Serial TTL, SPI, or I²C — no complex wiring or multiplexing required. Each segment, decimal point, apostrophe, and colon can be individually controlled. The ATmega328 comes pre-loaded with the Arduino bootloader, so the board can also be programmed for stand-alone operation via the onboard FTDI header.\n\nPower and I²C pins are on the sides of the board, allowing multiple displays to be daisy-chained for longer digit strings. Mounting holes are included for standoff installation.\n\nKey Features\n\n\nTriple Interface – Serial TTL, SPI, or I²C communication\n\n4-Digit Alphanumeric – Displays numbers, most letters, and special characters in red\n\nIndividual Segment Control – Control each segment, decimal point, apostrophe, and colon independently\n\nAdjustable Brightness – Software-selectable, saved to non-volatile memory\n\nSelectable Baud Rate – Configurable and retained in non-volatile memory\n\nArduino Programmable – ATmega328 with Arduino bootloader, FTDI header for programming\n\nChainable – Side-mounted I²C pins for daisy-chaining multiple displays\n\nDimensions: 41 × 23mm\n\n\nIdeal For\n\nDisplaying sensor readings, counters, or clocks\nArduino and microcontroller projects needing numeric output\nInstrument panels and status displays\nStand-alone timed or triggered display applications\n\n\nPackage Contents\n\n1× SparkFun 7-Segment Serial Display (Red)\n\n\nResources\n\nHookup Guide\nDatasheet\nGitHub Repo\nSchematic\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11561,"title":"Default Title","sku":"SF-COM-11441","price":37.52,"on_sale":false,"in_stock":true,"available_quantity":677,"option1":"Default Title"}]}