Tried on a real Cardputer Zero for the first time. It draws on the
panel, takes the keyboard, and opens from M5's app launcher:
scripts/cardputer-zero/launcher-entry.sh puts a source checkout there
(and `remove` takes it off) until there is a store package.
Three things the hardware showed:
- The splash opened with the highlight on /dev/ttyS0, the Cap's GPS
UART, because serial is listed first as found. Below the companions
we've used, anything that looks like one now comes before a port
nothing vouches for, across transports.
- The title bar's battery is the handheld's own BQ27220, as the
PicoCalc's is. The host pack is now found by what it is (a Battery
supply that isn't a peripheral's), not by the PicoCalc's name.
- While the Cap is powered, I2C bus 1 turns noisy: a quarter to three
quarters of the gauge's reads fail with an I/O error (one in ten of
the clock's), none with the header off. A failed read is asked again,
a status that won't read keeps its last verdict, and a good reading
stands through six failed polls instead of blinking out.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>