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This electronic ink calendar is an open project that takes advantage of a Raspberry Pi to display the daily Google Calendar agenda

Inspired by the Magic Calendar concept of Android, the user Speedyg0nz has published in Github the bases of his DIY project: a calendar with a 12.48 “e-ink screen based on Raspberry Pi.

MagInkCal, the name of the project, began two years ago through a post on Reddit and has finally become a calendar that many would like to have in their bedroom. A calendar capable of update to show the different Google Calendar events and designed to have an autonomy of between 3 and 4 weeks for each recharge.

MagInkCal: transforming a Raspberry Pi Zero WH into a beautiful calendar

Raspberry calendarRaspberry calendar

The calendar is made up of three main components. On the one hand, a Raspberry Pi Zero WH that can be purchased for about 78 euros, a Waveshare tricolor electronic ink screen of 12.48 that is currently only available in smaller sizes in Amazon Spain and a PiSugar2 battery, with a cost of 38 euros. .

As we can see, they are not exactly cheap components but they will help us to build an intelligent calendar that differs from commercial models by opting for an electronic ink screen.

All the steps to build this device are on the Speedyg0nz Github, as well as the code to sync with Google Calendar. By default, the creator has set the sync once a day to help save battery life.

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While devices like the Echo Show 10 or the Google Nest Hub use an LCD screen and are connected to the power, MagInkCal can be left anywhere thanks to battery usage. Specifically, the creator reports that its autonomy is around three or four weeks, and may become more efficient in the future if the code is optimized.

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“Specifically, I wanted it to be battery-operated so that I could place it anywhere in the house and even hang it on the wall without a cable hanging underneath. I also wanted the parts to be ‘plug and play’ as I had neither the desire nor the technique needed to weld anything, “the project manager explained to Hackster.io.

Regarding the price, Speedyg0nz admits that it is “very high for a device of this style”. Although the result is very striking, the code is available under the Apache 2.0 open license and it is another extraordinary example of what it is possible to do at home with a Raspberry Pi, some components and a maker spirit.

More information | Github