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Orange Pi 4G-IOT 40-pin connector & Mic questions

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Published in 2018-5-23 01:55:03 | Show all floors |Read mode
Is there any reference documentation for the 40-pin connector on the 4G-IOT board?

Also, is it possible to use both the microphone input on the audio jack and the onboard microphone to receive two separate input sources, or are they mutually exclusive?

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Published in 2018-5-30 20:37:12 | Show all floors
The schematics are in the download with the user manual.

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 Author| Published in 2018-5-31 12:11:50 | Show all floors
Ok, I'll take another look at those.  Thanks.
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