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PaxInstruments / labwiz-board

A development board based on the STM32 series processors specifically targeting the STM32F103RxT series.
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Battery/USB power switching #37

Closed charlespax closed 8 years ago

charlespax commented 8 years ago

We need to implement an automatic way of switching between USB power and battery power. See the T400 schematic for reference.

charlespax commented 8 years ago

I tossed in a diode the same as on the Adafruit Feather board. There's a bunch of screen shots in https://github.com/PaxInstruments/labwiz-board/issues/10. screen shot 2016-08-09 at 00 09 33

There is probably a better way, but it's fine for this hardware revision. We'll improve in the next milestone.

For reference, here is the relevant T400 circuit section. screen shot 2016-08-09 at 00 13 12

Also, you may want to take a look at https://github.com/PaxInstruments/labwiz-board/issues/10.

charlespax commented 8 years ago

We'll circle back to this if there is an issue in the next hardware revision.