MagnetoShield: The next one (R4->R5)

[gergelytakacs]

• How about using a digipot to calibrate the power part automatically?
• Can we put the magnet higher so it still pulls up the object? A: Tests show that no, see below.
• Test a larger magnet, or a different magnetic object, see if we can lengthen the levitation range. (We cannot go higher with current one)
• Built in voltage regulator for the high voltage part?
• A test point (pin?) for a bypass of the DAC chip for those, who whish to do so...
• The OPAMP should also get a filtered cap, (if the others have it).
• The onboard LED should rather signify the presence of the 12 V source, because that is the one forgotten most.

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