Hi Guys,
Run a length of two conductor cable from either a plug in the remote,
or directly from the audio input connection at the PSP connector,
connect the other end of the cable to a momentary switch via a resistor.
Now have your program look for peaks in the audio input waveform,
and you have yourself a very reliable external pushbutton switch.
Easy, but I'll bet noone else thought of it yet :D
External Pushbutton trick.
External Pushbutton trick.
If not actually, then potentially.
Because you're probably going to be wanting both of those IO to be comitted to their intended purpose.jean wrote:So, why not to hook the MS insertion intr and use MS as a "lateral left pushbutton".... :)
No, wait, i have one better: run your homebrew (checking battery temperature) holding the PSP straight on a candle: consider the button pressed when you move toward the candle and temperature grows... :))))
The memory stick will melt when the PSP catches fire in your pants.
It's useful for the mobile phone headsets that already have the
four conductor plug, and a pushbutton built into the cord.
Actually, I think with a few resistors and caps, and smarter software,
more buttons could be provided than the remote control.
Just not quite "QWERTY" quantity.
Pulling out the MS sounds like a good way to trigger a function that noone else knows about.
If not actually, then potentially.
just kidding Art ;)
The nokia headsets are doing something like this since 10 years old i guess...but it's done in hardware, i.e. no signal processing taken. I think it's an heavy effort (at least a waste of CPU) to sample an analog signal only to have an additional pushbutton...Anyway there are TONS of non-conventional ways to use the ADC of PSP....i began writing a software to learn IR codes that way, but i never finished it....maybe one day...
PS: a friend of mine bought a PSP-remote from Hong Kong for 4$...
The nokia headsets are doing something like this since 10 years old i guess...but it's done in hardware, i.e. no signal processing taken. I think it's an heavy effort (at least a waste of CPU) to sample an analog signal only to have an additional pushbutton...Anyway there are TONS of non-conventional ways to use the ADC of PSP....i began writing a software to learn IR codes that way, but i never finished it....maybe one day...
PS: a friend of mine bought a PSP-remote from Hong Kong for 4$...
Yeah...and UMD should work as well...Pulling out the MS sounds like a good way to trigger a function that noone else knows about.
Dang, I was going to post the UMD one last night, but though it going too far ;)
The pushbutton I thought of while improving my heart rate monitor,
that is non-conventional use of the audio input.
The button I described, I'm using for stopwatch start/stop.
There is a small delay between pushing the button, and the program reaction,
but it doesn't matter because the delay occurs for both start and stop,
so the time between is still accurate :)
The pushbutton I thought of while improving my heart rate monitor,
that is non-conventional use of the audio input.
The button I described, I'm using for stopwatch start/stop.
There is a small delay between pushing the button, and the program reaction,
but it doesn't matter because the delay occurs for both start and stop,
so the time between is still accurate :)
If not actually, then potentially.