Howdy from Austin, where we’re getting settled in. Beta units are going out in stages, so don’t fret if you haven’t heard from us yet. John is working out some bugs in the molding process for the final case, and David is crunching away at power consumption. Thanks to his firmware work (and a sacrificed ARM processor) this week, Twine can now monitor and report on your environment in real time while sleeping at 47 microamps. Which brings us to…
Live battery life test
We try to be pretty transparent with how things are going with Twine. After all, we’re in this together. Your support and enthusiasm coupled with our daily effort are steadily bringing Twine to fruition.
Now we’re taking that transparency to a new level. Usually we test something before we put it in an update, but today we’re deviating and doing the test live on the Internet in front of everyone. Getting Twine’s power consumption to our target levels (months of connectivity on two AAA batteries) has been one of the biggest technical challenges we’ve faced. It’s time to put the rubber to the road and find out how long Twine will really go.
Here’s the deal:
We’ve loaded one of our beta Twines, Mobius, with the latest software and a brand new set of Duracell AAA batteries. We’ve slightly modified it so that everything will run at about 45 times normal speed. (Otherwise it would literally take months to run the test.) Mobius will continuously report its battery voltage and the elapsed time to its online dashboard here:
How long will it go? We’ll all find out together!
We’re hoping for the equivalent of two months of runtime. If we get more, that will be awesome. If we get less, we’ll figure out how to make things better and try again. Welcome to the trenches!
The fine print: We’ve made every effort to make this test as accurate as possible. However, we’re doing things like running time at 45 times normal speed (crazy!) and testing a brand new firmware release. The final Twine battery life will probably be longer or shorter than the number we get from this test.