Battery percentage gone wild [SOLVED]
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Do you have an ldo voltage regulator? Maybe you could try 3 batteries for 4.5v output and use a linear regulator to have 3.3v or use 2 fully charged alkaline and power node without booster, as it could be the booster a bit too noisy.
My personal favorite solution is using a single LiFePo4 AA battery and vcc library, no buck/booster and voltage divider, everything much simpler -
I meant if you have one regulator to try, I think there may be something related to the booster. Try also a bigger capacitor on the booster output, and a big ceramic one if you have on the vcc of arduino
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I meant if you have one regulator to try, I think there may be something related to the booster. Try also a bigger capacitor on the booster output, and a big ceramic one if you have on the vcc of arduino
@gohan Something doesn't make sense here, if the onboard voltage regulator is removed and battery power is connected to Vcc via a booster it should provide a constant supply.
If the divider to A0 is fed with the raw battery supply, it should be relatively constant although decaying over time.
Something is wrong with the circuit I suspect.... -
@gohan Something doesn't make sense here, if the onboard voltage regulator is removed and battery power is connected to Vcc via a booster it should provide a constant supply.
If the divider to A0 is fed with the raw battery supply, it should be relatively constant although decaying over time.
Something is wrong with the circuit I suspect....@zboblamont Yes. It looks like bad wiring. I am testing right now. And it looks like my Arduino clone has some bad markings of the pins.... I am documenting and posting the solution (if it is what I am suspecting right now) later today. Right now I am doing test cycles while doing some paid work.. :-)
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Ok. So my strange error was due to connecting GND to the wrong PIN.
I was connecting GND next to VCC on the side of the Pro Mini.
Accordning to pics on the MySensors homepage and to the marking of my Arduino that pin is GND.But when connecting the FTDI with jumper cables I notice that PIN was marked with CTS.
So instead I connected GND to the pin one step out.
This PIN is also marked GND on my Arduino, and on the FTDI. But marked BLK on the pictures on MySensors home page.So it seems that both these pins are GND on my board, because everything else was working fine except the reference for analogue pins.
So topic solved. Thanks for all input. And specally @gohan that made me use the jumper cables and therfore found the error.
