You mislead folks here. Nice ambiguity introduction.
"an mp3 player" usually refers to software on a computer, not some lame toy you were stupid enough to buy one of.
Must be their OS.
Maybe you should develop a different procedure that does not invoke that problem. Or buy a better device.
This will abate the USB handshake mode change how?
Sure, you can redesign the power supply. Remember that with only 1.5V for the driver and the optoisolator, it's not gonna be simple. I chose the easier redesign with the NPN. Works fine.
I thought I heard the sound of digging your hole ever deeper...
Only thing ambiguous is your misinterpretation. I stated my objective. You're the only one who decided to wedge yourself into the thread to force it off track. 100% denigration, 0% help...classic UNO.
You're free to misinterpret whatever you want. You're skilled at the task...might as well flaunt your strong points.
Brilliant deduction!
You mean, like making a battery eliminator?
You linux trolls are big on buying stuff when what you have can't be made to work on your beloved OS...and act like that's the way it should be. This isn't about your beloved OS...not one little bit.
You just can't help digging deeper...
For the third time, this is not about any OS handshake. It's about the result of detection of 5V on the USB port of the device.
The battery eliminator lets me play the mp3s while AC powered...24/7 which was the objective and has been achieved.
When you're standing in the hole that you're digging...and you're filling it with effluent...you should stop doing both.
But I do enjoy watching you tread effluent.
Have a UNO day. I'm gonna sit back and listen to mp3s.
Why not just use a LDO with 1.5 V output instead?
Because it needs packaging. Because it dissipates more power than I'm comfortable with if I build it into a dummy battery.
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