Hi Rich,
If R18 is actually 1k and it is actually connected to 5V, I
suspect your 2nd Nano has a dead A2 pin already.
Thanks,
Adam
ÔÚ 2024/8/30 18:16, atkinsonr via
groups.io дµÀ:
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Thanks Bernd and Adam for your help with this.
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The photo is helpful, thank you. I belive my LPF is correct
and have attached a photo.
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Some measurements:
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With the LPF off the mainboard, I measure 1k¦¸ across it's
12v - GND pins.
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I desoldered R18 and tested it out of circuit, it measures
1k¦¸.
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Whilst poking around I shorted something and blew the
voltage regulator on the the Nano. Lucky I bought a second
Nano!
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Should the A2 pin on the Nano be 2.5v with the 40 LFP
installed? I'm reading zero volts at the A2 pin.
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I measure 1k¦¸ between the A2 pin and ground when the LPF
is in circuit, 4M¦¸ when it's not.
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I measure 0v at the A2 pin with the LPF installed, and
1.6v with the LPF removed.
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