Aniomagic's Schemer is a small microcontroller that doesn't need a cable to program it. Instead, you write the simple code on a website, then hold the Schemer up to your computer's display. The code is converted to flashing lights on the display, which is read by the Schemer.
Schemer is a tiny programmable button that helps you easily make interactive art and craft.
You can quickly make:
• a bracelet that changes color in response to your heartbeat
• a heat-seaking boat
• a painting that sings only when somebody is standing in front of it
• a pet collar that blinks in the dark
• a dress that twinkles when you get a phone call
• a light-following robotInstead of using wires or bluetooth, you program it by holding it in front of a computer screen.
You only need your web browser. No wires, and no extra hardware or software to install.
Schemer cost $16, or you can get a complete bracelet kit for $50. (Via Make: Online)