Bassplyr -- the world will never have enough bass players so when we encounter a bass player, even online, we need to treat him with utmost respect. And refrain from teasing him about his posts.

That said, I cannot help but to razz you thusly: you ask a question, are offered a helpful answer (but that may not work for you), and when the exact perfect solution is not instantly delivered to you on a silver platter, you immediately reject it and give up after one try ("I guess I'll just keep counting" -- are you hoping to prompt others to rescue you or are you just completely defeated?)

When drummers display this lack of energy, we hold them down and administer stimulants.

Okay, seriously, now that I've got that out of my system, and assuming you actually desire to get an answer to the question you asked, here's how you might do it:
1. Determine what wireless protocols your Android device supports (Bluetooth, AMT+, etc. probably Bluetooth) (hint: look it up on the support site for the device)
2. Get a HRM and cadence sensors that support that protocol (hint: google Bluetooth HRM, for example)
3. Get an Android app that supports these functions (hint: google and Market)
4. Charge everything up, configure and troubleshoot (hint: it will take initiative on your part to push through the potential obstacles. No, we cannot anticipate all the problems for you in advance, nor do we have them already solved.)

That should do it -- but wait, you don't need to track cadence. Bass players already have cadence in their DNA!

Let us know when you get your setup working!