Low Power

This is what I personally measured via the return (ground) path from the Phob, so includes both 3.3V and 5V draw. All builds are identical firmware - only the system clock differs (lower clock = less power):

Build (system clock)	Current	vs. stock
Stock v0.31	56.3mA	100%
100MHz	41.5mA	73.7%
75MHz	38.6mA	68.6%
50MHz	35.6mA	63.2%
25MHz (default)	32.6mA	57.9%

Which build should I pick?

• 25MHz - the default. Lowest current, best compatibility. Holds 1kHz with a thin margin. Recommended starting point.
• 50MHz - the "safe side." Comfortable timing margin, still a big power saving. Pick this if you want more safety, or if the 25MHz build ever feels off.
• 75 / 100MHz. Progressively more headroom and current, closer to stock timing.