IoT: Tessel, JavaScript microcontroller

Technical Machine:

"Tessel is a microcontroller that runs JavaScript. 
It's Node-compatible and ships with Wifi built in. 
Use it to easily make physical devices that connect to the web."

• 180mhz ARM Cortex-M3 LPC1830
• 32mb SDRAM
• 32mb Flash

Compared to RaspberryPi ($35) it is much less powerful and much more expensive ($99). In fact node.js can run on RaspberryPi, too, along many other things. 

Tessel, Arduino, Raspberry Pi | Manifest Density