Home / Technology / Hack your own e-paper smartwatch with this $ 50 open-source kit.

Hack your own e-paper smartwatch with this $ 50 open-source kit.



If you’ve ever wanted to be like Steve Wozniak and have a super custom watch, Squarofumi (the chic SQFMI) might have the product for you: an open-source, Arduino-powered smartwatch with e-1.54 inches. Paper screen (via GizmodoIt’s called Watchy, and both the hardware and the software are completely customizable. However, you can use it right away as the PCB acts as a case and has a point for attaching the watchband. And on top of that, it’s only $ 50 and it’s sold for $ 45 at the time of writing.

The SQFMI site has sections for dials and cases. But at the moment, both of them just say “coming soon”

;, so if you’re thinking about this watch, you’ll definitely want to make sure you’re ready for a DIY project. Oh, and there’s also the fact that the watch doesn’t come together – You need to assemble it by yourself by connecting the 200×200 display, PCB and 200mAh battery together.There’s Wi-Fi, Bluetooth, a 3-axis accelerometer and four buttons that can be used for navigation or Other functions you can dream of

Watchy has hardware that DIYers may be familiar with.
Graphics: SQFMI

If having to assemble the hardware yourself doesn’t scare you, there is one last thing to note: While the clock comes with pre-loaded software, if you want to make changes to the watch face, you will need to download the Arduino IDE and program it yourself.

While some may be turned off all the functions necessary for the watch to work, for some people the method of building it on their own means that they will get exactly what they want. If you want a watch with a case that looks like an iPod or a Game Boy with a compatible interface, you can 3D print the case and code the dial yourself. It’s a free type that you are unlikely to get with most commercial smartwatches, although Tizen and Wear OS watches have downloadable watch faces.

Estimated battery life SQFMI depends on your use case, says that if you save time, you should have five to seven days. But if you retrieve it often, you may only see a few However, its open-source nature means you can always put a big battery in the battery, or try some software optimizations if there are features you want to cut out.

The clock uses an ESP32 SOC, which can be programmed with Arduino and MicroPython.
IMAGE: SQFMI

If you are looking for this kind of coding / DIY project, Watchy is now being sold on Tindie.I suggest you take a look at SQFMI’s website to make sure the amount of documentation available is enough for you to get started.


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