Difference between revisions of "MicroBoSL"
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m (Stephen moved page BoSL Board nano to MicroBoSL: design changes) |
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| − | Here we will document the design of the | + | 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 | + | Key changes from the BoSL board to the microBoSL board: |
* Upgrade SIM7000 to smaller SIM7090 | * Upgrade SIM7000 to smaller SIM7090 | ||
* Remove much of the connectivity to achieve smaller profile | * Remove much of the connectivity to achieve smaller profile | ||
Revision as of 22:50, 17 December 2020
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
