README.todo

✔ Reorder power LEDs in schematics, change annotations. @done (7.04.2020, 00:08:41)
✔ FTDI TX diode is D3 and should be orange, not green. D4 should be changed as well. @done (7.04.2020, 00:14:50)
✔ Fix R25 and R26 values (need to try out few resistors).
✔ Add 10k pull-downs on MCU LED outputs. @done (13.04.2020, 18:14:51)
✔ Switch places of D3 and D4. @done (13.04.2020, 18:36:35)
✔ Move J4 up by 1 mm.
    ✔ Cut USB opening in the enclosure.
✘ Test USB suspend and decide whether to remove D6 or not.
✘ Rotate Y1 by 90 deg. (See HiFive1 Rev. B01.)
✔ Change IMU supply voltage to 3V3.
☐ Fix U4 footprint.
☐ Fix U6 - U5 signals voltage levels, add level translators.
☐ Make Y1 tracks equal length.
☐ Add labels:
    ☐ LEDs
    ✔ buttons
    ✔ test points
☐ MAYBE: Change D13 resistor to 560.
☐ MAYBE: Change D1 to 0603 package.
☐ MAYBE: We do not need those 30 mil power traces.
☐ MAYBE: Move S1 and S2 up a little.