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It’s in the work. But I can’t reveal much yet! It’s going to awesome, awesome for everyone’s need.
Sounds great!
I am wondering, when can we expect new one mini-ultra version?
Is the VBAT and JST pin connector the same? I’m noticing around 400uA sleep current when connecting via the pin (I did not have the correct JST plug on my LiPo). Schematic would indicate that the JST and VBAT pin are the same. When powering the unit via the 3v3 pin using a LiFPo4 I observed ~17uA.
In connecting I did notice I created a short (spark) accidently so the issue could be I damaged something causing the addition power draw :/
Is the VBAT and JST pin connector the same? I’m noticing around 400uA sleep current when connecting via the pin (I did not have the correct JST plug on my LiPo). Schematic would indicate that the JST and VBAT pin are the same. When powering the unit via the 3v3 pin using a LiFPo4 I observed ~17uA.
In connecting I did notice I created a short (spark) accidently so the issue could be I damaged something causing the addition power draw :/
They are the same both JST and the VBAT pin. The board supports Li-Ion/Pol although it can be used with the LiFePO4 with care (no charging through USB or VIN allowed as the charge voltage is different compared to Li-Ion/Pol). All boards are tested to draw below 20 uA during sleep in our test, anything above that goes to the reject bin.
Thanks! This confirms my suspicion that I burned something up given I achieved the lower power previously.
Agreed on lifepo4 some care is needed… I got burnt on over some over-discharge issues of the battery! In addition to your point that it can’t be charged by usb, the processor seems to be able to draw/work below ~2.3v (I think datasheet says 1.65v) which is below the safe discharge of the battery, killing the battery. Lessons learned the hard way.
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