MicroBoSL

Here we will document the design of the BoSL board nano, a miniaturized version of the BoSL board.

Key changes from the BoSL board to the BoSL board nano:

• Upgrade SIM7000 to smaller SIM7090
• Remove much of the connectivity to achieve smaller profile
• Add NFC
• Make board much smaller

To do this many components will have their parts changed to a smaller footprint version. These substitutions include:

• Many passives -> mostly 0603
• ATmega328P-AU -> ATmega328P-MMH
• FT232RL -> FT232RQ
• 74HC126D -> 74HC126-Q100