PyGamer 3-pin JST

[Claude_J_Greengrass]

I believe the two connectors provide A8 and A9 pins and Vcc and Ground. Can anyone point me at the spec. for the how much current each of these supply? I need 120ma on each but only one will draw current at any point in time.

[dastels]

You are correct. See https://learn.adafruit.com/adafruit-pygamer/pinouts.

Dave

[Claude_J_Greengrass]

I've read that page several times. All I can find is: "On the bottom are two connectors labeled D2 and D3. These are 3-pin JST digital or analog connectors for sensors or NeoPixels. These pins can be analog inputs or digital I/O. D2 is also known as A8, D3 is also known as A9 for analog reads."

It still doesn't tell me how much power is available via D2/D3

[dastels]

If you have them set for 5v, that comes from USB or the battery (so actually not 5v unless it's powered by USB, but the highest voltage available on the board). If they're set to 3.3v, that comes from the onboard regulator and is shared with the rest of the board. It can provide 600mA so drawing 120mA from either JST connector should not be a problem, but it depends on what's being used by the board and anything else connected to it.

Dave

[dastels]

Note that a lot of USB connections don't like to provide more than 500mA.

Dave

[Claude_J_Greengrass]

Thanks Dave for the info. I have first hand experience with USB limitations when I destroyed a Samsung CB Pro