Race Timer
A standalone Wear OS race timer that runs the ISAF and US Sailing start sequences on the wrist. Cues are scheduled rather than polled, which is the difference between a horn on the gun and a horn near it.
Westerville, Ohio
Dave Alvarado
I build sailing software and test it on the boat. A start timer measured to 61 ms from the mark at its worst, robotic race marks you move without an anchor, and the club software under both.
Selected work
Three that had to work on the water
Each one carries a decision I would defend. The rest are a line in the index.
Buoyant
Cross-platform BLE fleet control for GPS station-keeping robotic race marks — set, move and monitor a course from the committee boat instead of dragging anchors.
Tender
Pairs skippers short of crew with people who want to race. The matching engine widens its own search when nobody fits, and colours how far it had to relax rather than hiding anyone.
Apps
On a watch, in a browser, on a phone
- Race Timer Start sequences on a Wear OS watch, offline. madcowsailing.com
- Taskr Fair household chore allocation. Open for testing
- Buoyant BLE control for robotic race marks. In development
About
Short version
I race an Interlake at Hoover Sailing Club and write the software I wanted on the water. Most of it starts as a problem on a race course and ends as something small enough to trust with a start sequence.