{"id":16239867,"url":"https://github.com/martinberlin/colorino_epaper_clock","last_synced_at":"2025-04-08T09:29:44.104Z","repository":{"id":151157854,"uuid":"494721396","full_name":"martinberlin/colorino_epaper_clock","owner":"martinberlin","description":"A very easy deepsleep clock using PlasticLogic 6 color Legio epaper. 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It uses [Plastic Logic 2.1\" Legio flexible color epaper display](https://www.plasticlogic.com/products/displays/displays-with-ultrachip/2-1-inch-colour-display).\nSimply makes an internet Sync a day and stores the time in NVS. Each X minutes, defined in global variable **sleepMinutes**, it wakes up and retrieves the date from NVS just to add this minutes rendering the display and repeating the process.\n\n![preview](assets/cover_picture.jpg)\n\nThis sketch uses Robert Poser [PL_microEPD](https://github.com/RobPo/Paperino) library added locally with custom modifications. As it is right now the clock will only use monochrome 4 levels of gray.\nTo achieve colors in the display, we need to switch to the [PlasticLogic PL_smallLegio C++ class](https://github.com/plasticlogic/PL_smallEPD/tree/main/src), which talks with UC8156 to use different voltages for each of the 5 available colors (6th is white)\n\n![preview colorino-clock](assets/colorino-mono.jpg)\n\n## Requirements\n\nLatest Arduino-esp32 added in Arduino IDE -\u003e Preferences -\u003e Additional board URLS\n\n\n     https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json\n\n- Adafruit GFX added as a global library\n- A [PlasticLogic.com/sampleshop UC8156 color epaper display](https://www.plasticlogic.com/products/displays/displays-with-ultrachip/2-1-inch-colour-display) (2.1 inches)\n\n\n## Configuration\n\nSimply open the **colorino_epaper_clock.ino** in Arduino IDE and set up points 1 to 3:\n\n- 1 Edit in Pl_microEPD.h the right EPD_WIDTH / EPD_HEIGHT for Adafruit GFX instantiation (As default 2.1\" size: 240*146)\n- 2 Update the ESP_WIFI* Credentials so it can connect to the internet\n- 3 Flash with forceSync=true on first run so the right time is stored in NVS\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmartinberlin%2Fcolorino_epaper_clock","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmartinberlin%2Fcolorino_epaper_clock","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmartinberlin%2Fcolorino_epaper_clock/lists"}