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A comment on Unless my phone can be a PC, I don't want to keep paying for extra performance. Parent comment

Re:Unless my phone can be a PC, I don't want to keep paying ... by astrange on Monday December 09, 2024 @05:46AM (#42364882)
> Why isn't there general purpose D/A and A/D ports/outputs for instrumentation?

There is one, it's the headphone jack. (Or dongle.)

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Re:Unless my phone can be a PC, I don't want to keep paying ... by hilbert42 on Monday December 09, 2024 @06:11AM (#42365041)
Not useful, it's dedicated. You missed my point.
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Re:Unless my phone can be a PC, I don't want to keep paying ... by astrange on Monday December 09, 2024 @04:26PM (#42370679)
Is that autocorrect? Because I have no idea what dedicated means here.

It's obviously useful, that's how Square launched their card reader business.

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Re:Unless my phone can be a PC, I don't want to keep paying ... by hoseja on Tuesday December 10, 2024 @09:37AM (#42377189)
Can you access the ADC in a non-audio context? If not then it's dedicated to audio. The Square reader is like a telephone modem, presumably some app then listens to the "microphone"?
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