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Below is a screen capture of the PCB layout for the NADSBox PCB and all the parts for building the first batch.
The layout was completed in June and has been manufacured in quantity. The PCB is a 2-layer design to keep costs
down and includes a couple of different options for DC-DC conversion from the 2-AA battery source. The PCB also
incorporates an on-board CR2032 Lithium coin cell to power the Real-Time-Clock for keeping track of the date and time.
The power system is designed to allow multiple power sources to be connected simultaneously. The firmware detects which
power sources are available and draw power from a single source with the following priority:
- External DC Input: 4.5V to 6V input has highest priority
- Internal AA Batteries: 2 AA batteries take next priority
- RS-232 Cable Power: Used when no external power or AA batteries present
Note: Use of the RS-232 Cable Power feature requires installation of J6 in the NADSBox and a single modification (soldering)
to the Model T. This is an optional feature for those brave enough with a soldering iron in their beloved laptop.
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The NADSBox PCBs are back! |
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Assembled NADSBox PCB |
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