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reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["7segments","hardware-libraries","python","raspberry-pi"],"created_at":"2024-09-30T16:08:43.253Z","updated_at":"2026-04-27T18:02:51.405Z","avatar_url":"https://github.com/agjendem.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"Software to control 7-segment displays.\n\n# Software:\nBased on code found in the comments section of the [SparkFun Hookup Guide](https://learn.sparkfun.com/tutorials/large-digit-driver-hookup-guide/discuss). Thanks to [Member #910971](https://www.sparkfun.com/users/910971) and [Member #642108](https://www.sparkfun.com/users/642108).\n\nThis code is further improved to easily support multiple displays, as well as text/numbers, with scrolling.\n\n# Hardware:\nTested with the following hardware:\n* [7-Segment Display - 6.5\" (Red)](https://www.sparkfun.com/products/8530)\n* [SparkFun Large Digit Driver](https://www.sparkfun.com/products/13279)\n* [RaspberryPi 4](https://www.raspberrypi.org/products/raspberry-pi-4-model-b/)\n* [SN74AHCT125N Quadruple Bus Buffer Gates With 3-State Outputs](https://www.ti.com/store/ti/en/p/product/?p=SN74AHCT125N)\n* [Adafruit Perma-Proto HAT](https://www.adafruit.com/product/2310)\n\nIt is likely to work with other variants, home made displays and/or drivers based on [TPIC6C596](http://www.ti.com/lit/pdf/slis093), as well as other voltage converters for signal, for example the [SparkFun Logic Level Converter](https://www.sparkfun.com/products/12009).\n\n12v power to the displays are provided externally.\n\n## Build instructions:\nhttps://learn.sparkfun.com/tutorials/large-digit-driver-hookup-guide/all\n\nIn our case, we swapped the Arduino with a RaspberryPi 4. As the Pi operates with 3.3v signals on the GPIO compared to the 5v of the Arduino, the signal lines (clk, latch, data) needs to be adjusted via a logic level converter.\n\n# Defaults:\nSegments class parameters, based on the [Raspberry BCM pinout](https://pinout.xyz/):\n* bcm_gpio_clock=11 *(CLK)*\n* bcm_gpio_latch=13 *(Signals when to switch to the next display)*\n* bcm_gpio_data=14  *(TXD - used to turn each segment on/off)*\n* num_displays=7 *(The number of displays you've chained)*\n* debug=False *(Turns on debug output to console)*\n* offline=False *(Deactivates the actual GPIO-parts, used mainly for dev/tests)*\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fagjendem%2Frpi-7segment","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fagjendem%2Frpi-7segment","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fagjendem%2Frpi-7segment/lists"}