BETAFPV G473 V2 — 1S Whoop Build Spec

Flight controller

Reported gyro rate in normal operation is ~8 kHz with a cycle time around 123–128 µs and roughly 47% CPU load.

Firmware

Betaflight / STM32G47X (G473) 2026.6.0-alpha
MSP API: 1.48

What is not on this board

No GPS, no magnetometer, no barometer detected. This matters in two places:

• GPS Rescue is unavailable, so failsafe is a drop-or-land decision only.
• Blackbox logs contain no location data, which is why they are safe to share or discuss openly. A GPS-equipped craft would need home-point coordinates scrubbed before any log left the machine.

Replacement board

This board was replaced on 23 September, after a temperature warning that three separate investigations never isolated (see the flight log entry). Everything under Flight controller above describes the airframe as it flew through 17 September, on the board that’s now retired.

The replacement was ordered as a BETAFPV Matrix 5-in-1 V2 AIO, G473, 12 A, 1S — listed as Matrix 1S Brushless Flight Controller (5IN1 II) at most other retailers — and arrived on the same BETAFPVG473_V2 target with a different gyro substitute:

The new board isn’t a continuation of this one. It took its own share of setup faults — a dead motor, a battery reading that looked worse than it was, and a board-alignment value that was wrong in two different ways before it was right — and flies under its own name now: Phoenix. The full story is on the blog; its own settings and findings are tracked under craft: Phoenix, not here.

Known sensor issue

The current sensor on this board reports implausible values — see the flight log entry for a 1320 A reading that is an ADC scaling artifact rather than a real event. Treat amperage columns in the blackbox data as untrustworthy until ibata_scale and ibata_offset are recalibrated.