I’ve been working on this project that requires the photon to be powered form 1 or 2 cells AA batteries, i am using a 3.3 boost converter to maintain the batteries voltage to 3.3v, photon is configured to be in deep sleep mood and wakes up from a signal on (WKP) pin, so the overall current consumption is around 260uA (Photon + Stepup converter).
everything works great as long as i am waking up the photon daily it’s been running for ~4-5 weeks, but if i don’t wakeup the photon for around 4~5 days something weird happens when i send a signal to the WKP button the photon would flash White the SOS red for hard fault i guess, it never works again until i remove the batteries for (2~3 sec) then put them again it will run totally fine on the same batteries.
At first i thought it’s the batteries are drained but they give 1.5v on voltmeter so they are good batteries.
Does anyone have an idea on what’s going on after keeping it sleep for 5 days, is it something related to the batteries? stepups ?(btw i’ve tried different stepups with same results) or is it the photon itself ?