So the obvious path to a fast rejection of DW is to buy their ready-to-go eval kit with the K9 antennae. If it fails we are done for an outlay of $600 and a little software. If it works it’s pretty much at end of life unless we can reprogram it to be some sort of base station.
I think flexibility to try a whole bunch of fail-as-fast-as-possible experiments is the order of the day. We need an experimental apparatus more than anything else. “Pretty” isn’t important.
- It should above all be easy to debug, so an idiot like me has to be able to attach debugger, and poke it with a scope, when you are not nearby to do it for me;
- It should be at least possible to continuously measure the power and plot a graph against time (well wireless event really). I need to be able to compare different duty-cycles and protocols with some confidence – and do it pretty automatically each time I change a bit of code. It would be upsetting to work on the assumption that something was low-power to find out much later that I had it wrong. Can we count microCoulombes somehow?
- It should be small enough to wrap up with duct tape and velcro to my wrist – even if it needed a D-cell for power 🙂 Have to try and understand the near-body propagation issues. We didn’t really test that with the BeSpoon.
- It should be easy to add warts. If it works well enough we might want to solder on extra off-the-shelf breakout boards with beeper, vibrator, IMU etc.
These are just my ideas, and I know they might be way, way beyond the pale. Tell me what you think about each, and what you think is missing.