Carta Operum

Journal

Notes from the voyage of Cadence: what broke, what held, and what I would do again.

Date Bearing Entry Watch
Sync Heart rate, from the sensor to the screen Live vitals on the workout screen: one stream, many readers, and a state for 'lost'. 1 min
Craft Twenty weeks in a grid The streak heatmap: a habit written in a hundred and forty small squares. 1 min
Mobile Splits and the fastest kilometre Computing a split from raw samples, and what to do with the last partial kilometre. 1 min
Mobile Drawing a run while it happens Turning a stream of GPS fixes into a clean route, one kilometre marker at a time. 1 min
Craft A countdown ring for every round Drawing the interval timer with a painter, and keeping it honest when the phone sleeps. 1 min