https://github.com/nhjschulz/einkpicframe
Battery powered picture frame using color E-Ink display
https://github.com/nhjschulz/einkpicframe
Last synced: 3 months ago
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Battery powered picture frame using color E-Ink display
- Host: GitHub
- URL: https://github.com/nhjschulz/einkpicframe
- Owner: nhjschulz
- License: bsd-3-clause
- Created: 2021-12-02T16:58:34.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2024-06-19T11:37:56.000Z (about 1 year ago)
- Last Synced: 2025-02-13T11:54:50.993Z (5 months ago)
- Language: C
- Size: 8.98 MB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# EInkPicFrame
The project builds an electronic picture frame using a 7 color E-Ink display.
It updates after an adjustable time period by reading images from an SD-Card.
The frame is powered from a battery and mimics a real picture frame by requiring
no power cable or a backlight. The software and hardware implements various power
saving methods to run for a long time without recharging.
This is a hobbyist project. I have >20 years background in software development,
but lack the electronic engineering background. I'm using this project to
clear the fog in these mysterious regions below a HAL software layer. The project
therefore includes a hardware design as well.
## Requirements
A set of project requirements is collected here: [Requirements](design/Requirements.md)
## Concept
Block diagram of the system:
## Used Tools
The project is build using open source tools only. All of them are available for free. The following table shows the tools and versions used during development:
|Tool | Usage | Version | Link |
|----------------------|---------------------------|-----------|--------------------------------------------------------------------|
| Visual Studio Code | Editor and IDE | 1.63.2 | [https://code.visualstudio.com/](https://code.visualstudio.com/) |
| PlatformIO | Software build tools | 5.2.4 | [https://platformio.org/](https://platformio.org/) |
| Python | Script programming | 3.10.1 | [https://www.python.org/](https://www.python.org/) |
| GIMP | Image Manipulation | 2.10.30 | [https://www.gimp.org/](https://www.gimp.org/) |
| ImageMagick | Image Manipulation | 7.1.0 | [https://imagemagick.org/](https://imagemagick.org/) |
| GIT | Version Control | 2.19 | [https://git-scm.com/](https://git-scm.com/) |
| KiCad EDA | Hardware Design | 5.1.12 | [https://www.kicad.org//](https://www.kicad.org/) |
## Software Architecture
The implemented software architecture design is shown on the [Software Architecture](design/SwArchitecture.md) page.
## Hardware
The system is assembled using the following parts: [Partlist](design/Parts.md).
A description of the PCB developed for this project is described
here: [PCB](design/hardware.md).
## Image Generation
The images to show on the frame must be in a special raw format. The process to generate this format is
described on the [ImageConverter](imgconverter/howto.md) page.
## File System
The SD Card must be formated using a FAT file system. The software
expects a folder with the name "epd" on it. This folder contains
the following data:
[epd]
|---- [err]
|---- [img]
|---- epd.cfg
* The folder "err" holds error images that are displayed in case
of a problem, like "low battery".
* The folder img holds your images in epd format.
* The file epd.cfg are the parameters for the display. See
[Parameter File](./design/Parameter.md) for instructions to
create it.
An example file system can be copied from the example
[File System](./design/FileSystem) folder.
## Prototype Progress
* 2021-12-11: System functional on breadboard (V1 hardware)
* 2021-01-22: V1 PCBs arrived and work
* 2022-02-01: First frame starts long run test in the living room
Back side:
