Quote:
Originally Posted by jackbauer
It gets better. Decided for the hell of it to connect the beemer gauge in parallel. The damn thing works. Full at 100%soc. Empty at 20%. Time will tell if it actually works as it should. The only mods here being the pwm freq and i changed the full pwm from FF to FA.
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Awesome Jackbauer!
The ONLY difference between the 2480 & 2420 code is 1 configuration bit and the ADC channel # used for pin 23 (pot VR2). Since it worked for apowers, I'd have to assume device damage. Only way to know for sure is if you had a second 2480 to pop in.
Would have liked to take PWM down to 100Hz or so, but 488 is as low as it will go with 8Mhz crystal. Is it inaudible or is there a faint buzz? A cap should help. It will discharge thru R20 and charge through the meter's coil. Don't know how well it will filter, but even turning the square wave to triangle should eliminate residual buzz.