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no further soldering is required
the most common variant uses 5v for chip supply and logic levels
which are soldered on and tested
and capacitor already soldered onto the board
The ATmega is pre-flashed with the OptiBoot loader (compatible with the Arduino Uno) and the RF12demo sketch
Current Source Plug JeeBoot no further soldering is requiredThe Current Source Plug is a small board based on the AP8803 chip to provide a constant current to two independent sets of power LEDs of 350 mA or 700 mA. The two I O pins can be used to turn the LEDs on or off, and for dimming via PWM. This plug uses a very efficient switching down convertor ("buck" topology) supply instead of converting surplus voltage to heat, as simple dropper resistors would do. Theoretically, each of the two channels can drive
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