E-Ink/E-Paper displays make for great low-power displays that are daylight visible and keep their image even when depowered. For folks who want to DIY their own E-Ink setups, this is a 4.2"...

Easy e-paper finally comes to your Feather with this Adafruit EInk Feather Friend that's designed to make it a breeze to add an eInk display. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic...

"You see, wire telegraph is a kind of a very, very long cat.  You pull his tail in New York and his head is meowing in Los Angeles.  Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there.  The only difference is...

CO₂ sensors are essential for determining if a room is too 'stuffy' - high CO₂ makes humans grumpy and tired. That's why it's always nice to take a deep breath outside where CO₂ is about 400 ppm. However, until now, CO₂ sensors were always really chunky (

Put your project in stealth mode with these silent Soft Tactile Switch Buttons. Tactile switches are standard input "buttons" on electronic projects. These work best in a PCB but

Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 2000mAh. If you need a larger (or smaller!) battery, 

This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove.

Yow! These things are super powerful. .47" diameter and .18" thick discs. Great for use with your SpokePOV Kit. If you have an aluminium frame, use tape/foam sticky tape to attach it.