This is a simple breakout board for the nRF52840 Minew MS88SF2 module.

Assembly instructions

Solder all components except the module. Clean PCB.

Test if 3V3 regulator works by connecting 5V to VIN5V-pin (with 50mA power limit). The board should not use any significant current. Measure the 3V3O-pin, it should be 3.3V.

Now solder module.

Do not forget to connect an antenna if using the MS88SF2-U.FL module.

Checklist (WIP) V1.0 PCB

Testing and working? (after bodge fix, see V1.1 changelog)

:ballot_box_with_check:SWD (SWDIO, SWCLK, SWO)
:ballot_box_with_check:RESET (P0.18)
:ballot_box_with_check:USB
:black_square_button:NFC (P0.09, P0.10)
:black_square_button:P0.02
:black_square_button:P0.04
:ballot_box_with_check:LED green (P0.06)
:black_square_button:LED RGB red (P0.08)
:ballot_box_with_check:LED RGB blue (P0.12)
:black_square_button:P0.13
:black_square_button:P0.15
:black_square_button:P0.20
:black_square_button:P0.22
:black_square_button:P0.24
:black_square_button:P0.26
:black_square_button:P0.29
:black_square_button:P0.31
:ballot_box_with_check:LED RGB green (P1.09)
:black_square_button:Button (P1.13)
:black_square_button:P1.15

Changelog

V1.1

• Attached VDDH to VBUS to enable USB to work.
• Removed series resistors from USB data lines.

V1.0

• Everything changed out of nothing.