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Feather M0 LoRa RFM95 dropout
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Feather M0 LoRa RFM95 dropout

by wb4dhc on Sat Sep 07, 2019 11:51 pm

I have a Feather M0 LoRa RFM95. Am running the battery sketch code and logging battery voltage along with the code to send data. Aim is to see how long the feather will go on a 1200 mAh LiPo battery. It seems to die at 3.5 volts. I expected it to be in the neighborhood of 3.2. From what I can find on the processor it is ok with < 2 Volts and the battery cut out circuit is at 3.2. Am I misunderstanding something?
Tnx for any pointers to where I can learn more.
Robert

wb4dhc
 
Posts: 7
Joined: Fri Dec 19, 2014 7:23 pm

Re: Feather M0 LoRa RFM95 dropout

by wb4dhc on Fri Sep 13, 2019 10:07 pm

I've been running battery tests over the last 2 weeks. Seems that the Freather M0 shutsdown around just under 3.5 volts...

Total Hours Avg/hr Total use Last Volt Starting Volt Battery
Aug29 80.75 0.0076 0.6100 3.51 4.12 A
Sep2 74.05 0.0074 0.5500 3.47 4.02 B
Sep6 81.45 0.0077 0.6300 3.49 4.12 A
Sep9 84.77 0.0076 0.6400 3.47 4.11 B

wb4dhc
 
Posts: 7
Joined: Fri Dec 19, 2014 7:23 pm

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