A breathing sensor / respiration belt by @kobakant
Kobakant.at presents a very simple solution for capturing the movement of the chest or stomach breathing, using a stretch sensor knit from a stainless-steel & polyester “sensor yarn”.
How does it work?
The stainless steel fibers in the yarn are short, and the electrical resistance between them is high (when relaxed <1M Ohm). And when you stretch the yarn the resistance goes down bellow 1K Ohm (depending on the length of yarn you are measuring across).
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.