The Mega Lithium BackPack is an Open Source Hardware battery shield for the Arduino Mega that snaps to the back of the board, and provides around 15-27 hours of battery power to circuits built with the Arduino Mega (depending on the circuit). It gives a 3.3 volt, 5 volt, ground, and battery capacity testing signal that can be plugged into the Analog input port to test how much battery power is left.
The BackPack sells for $48.
Introducing the Mega BackPack, a battery for the Arduino Mega
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First day off crutches. Very sore but happy to loose them!
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The Screwshield for Arduino is a “wing-format” shield that extends the Arduino pins to sturdy, secure, and dependable screw terminal blocks. The wing design allows you to extend just one or both sides (“analog” & “digital”) of the Arduino, and still access the jumpers, LEDs, and buttons on the Arduino. Thanks to its extra-long header pins, the ScrewShield can be stacked above or below other shields. It’s a must have for anyone who is experimenting with the Arduino.
More about the Screwshield for Arduino
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