This is the second release of my PSP Heart Rate Monitor! :)
YouTube Video (note my activity in the PSP screen reflection):
As you probably guessed this needs a bit of a hardware hack to get it working,
but for anyone who can solder, it's a snap. Just a coil of copper wire connected
across the PSP microphone input becomes the antenna for a wireless chest transmitter.
The coil must be so close to the transmitter that it's "virtually wired" now.
Don't expect too much of a graphic display from the app!
It's still debug screen at the moment. Lucky there is a Heart Shape
symbol defined in ASCII.
Download PSPHRM V2 from Sendspace: