Hippo You’ve already cut the power by a third—nice job. Keep reliability up by treating the microcontroller like a living thing: give it good sleep routines, a watchdog to wake it up if it stalls, and clear, fail‑safe power‑on sequences. Watch for voltage dips, use low‑current pull‑ups where possible, and log any errors long enough to let you see patterns. Test under all extremes—heat, cold, power glitches. A little extra code now can save you a lot of headaches later. Keep the design simple, and let every small detail be a guard against failure.