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Do any of the pins on CN9 or CN13 on the STM32F7 Discovery Board have a constant 3.3 or 5V output?

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    \$\begingroup\$ When you say "digital pins" do you mean the GPIO, or any available pin? \$\endgroup\$ – Ron Beyer Jun 27 at 21:25
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    \$\begingroup\$ Sorry the Arduino connectors on the right side CN9 or CN13 ? \$\endgroup\$ – Dwayne Jun 27 at 21:49
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    \$\begingroup\$ i think that you should be asking if there are any power pins on the board .... digital pins usually refers to data pins \$\endgroup\$ – jsotola Jun 28 at 2:04
  • \$\begingroup\$ Identify which STM32F7 discovery board. The answer depends on how you power your board. USB is meant to power these boards, but if you provide external power, you have 5V at USB connector. It is how USB works. \$\endgroup\$ – StainlessSteelRat Jul 1 at 20:09
  • \$\begingroup\$ So my question should have been does this board have constant voltage at the Arduino pins are they constantly on like on a TI board. - anyway \$\endgroup\$ – Dwayne Jul 3 at 13:45
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Do any of the digital pins on the STM32F7 Discovery Boards have a constant 3.3 or 5 V output?

Yes.

ST publishes datasheets for the STM32x microcontrollers as well as overviews, manuals, and summaries of the Discovery kits. For example, the STM32F723 eval board has this data brief.

STM32F723IE Discovery Kit Data Brief


Note that this may not be true of all STM32F7x discovery kits.

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