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Log 6 analog and 8 digital pins from Arduino Uno simultaneously in Excel.
Plug in any combo of up to 4 NES, SNES, or N64 controllers, use them as USB HID joysticks.
What can you do with a tennisracket bugzapper and a CFL bulb?
Chachka is to the Adafruit Trinket what boarduino is to Uno: a clone.
Cypress PSoC 4 has all the right characteristics to be an Arduino killer: highly configurable, shield compatibility, low price, speed ...
Internet controlled Hovercraft
This board translates bidirectionally inputs/outputs of the Raspberry Pi's GPIO from 3.3V to 5V TTL levels.