I found some time this weekend to get the dedicated Android app up and running.

Previously, I was sending two-byte transactions by hand using the excellent (but clunky, for my purposes) RFduino demo app by Github contributor Lann.

The new app is not much different, but it is the first step in building out a much more useful WEFT app. For now, there are sliders and radio buttons that automatically update the WEFT board with the selected parameters.

In the future, the "Duty cycle" adjustments won't be necessary (that will be controlled by the feedback logic on board), and other parameters will be testable/settable through a settings page. The current app is basically a prototype of that settings page.

In other news, I am looking for more-permanent pad coatings that have the same desirable dielectric properties as hairspray. I tried some nail polish topcoat, but I think the layer I applied was too thick, as it really diminishes the electrovibration effect. I'll keep trying with non-topcoat nail polish, as well as trying to thin nail polish with a bit of acetone, btu I'm wondering if the non-alcohol ingredients of hairspray are particularly good...if anyone has thoughts, chime in!