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January 18, 2013
about 2 years ago
A4 & A5
it works with power supply connected though you risk damaging your usb port if your power supply spikes above 5vdc..
fyi - the the bootloader on the Miro takes almost 5 sec to bootup due to usb device (keyboard/mouse) emulation. pain in the butt when u are trouble shooting code and need to reset the board often.
“… has an internal pull-up resistor (disconnected by default) of 20-50 kOhms” - http://arduino.cc/en/Main/ArduinoBoardProMini
watch out for the Wire library… its full of bugs
System resets resulting from a Watchdog timer (wdt.h) are not supported by the bootloader. when the watchdog timer triggers a reset, it will reset the chip but will not reset the timer therefore it will continuously reset every time the chip boots up. This essentially bricks the arduino unless you catch the the chip during the bootloader sequence with a sketch upload.
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