Inkclip

Inkclip is an e-paper hair clip.

Features

• It looks cool, if you are the type of person who thinks this kind of things look cool.
• Use it as more than a hair clip: a pin, a pocket clip, or just a gadget on your desktop.
• Update the pattern on the hair clip by simply connecting it to a computer via USB.
  • There is a ready-made web application you can use for this!
• Everything is open source: the hardware, the firmware, and the webapp.

Physical characteristics

• Display size: 1.54 inches
• Resolution: 200 x 200 px
• Color: black and white
• Thickness (average): 2.60mm
• Thickness (thickest): 5.00mm (at micro-B port)
• Minimum weight (without mounting hardware): 6.5g
• Typical weight (with a 35mm hair clip): 8.0g
• Size: 33.40mm x 33.92mm
  • The shape of the device is a 32.80mm x 38.32mm rectangle with 1mm-radius dogbone corners.

Project structure

• hardware/ is the KiCad project for the Inkclip hardware.
• firmware/ is a simple firmware for Inkclip that receives image bitmaps and then updates the entire display.
• webapp/ is a web application for updating the display that works with the aforementioned firmware.

Demo