MicroBoSL

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Revision as of 22:25, 19 January 2021 by Stephen (talk | contribs)
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Here we will document the design of the microBoSL board , a miniaturized version of the BoSL board.

Key changes from the BoSL board to the microBoSL board:

  • Upgrade SIM7000 to smaller SIM7090
  • Remove much of the connectivity to achieve smaller profile
  • Add NFC
  • Make board much smaller. No more than 30 mm in width.
  • Removed MS5803


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 -> 74HC126PW-Q100
  • MCP7940NT-I/SN -> MCP7940NT-I/MNY
  • MCP1700-3302E_SOT89 -> MCP1700-3302E_SOT23

20th January 2020

The micro BoSL is here: MicroBoSL Front

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