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Timeline for PWM and Analog Signal Quality

Current License: CC BY-SA 4.0

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Mar 19, 2021 at 10:25 comment added Nick Gammon My op-amp was configured for unity gain, I don't know why you need those extra components.
Mar 19, 2021 at 10:24 comment added Nick Gammon You have a much lower resistor (220Ω vs 4700Ω) than I did. The higher value resistor will charge the capacitor more slowly, thus smoothing out the signal and effectively giving you an average, which is what I assume you are trying to do.
Mar 18, 2021 at 12:17 comment added tryingHard Thanks, that's actually the same I'm using and guess what, I got the original from you. ) I knew your name looked familiar. I'm using a tantalum 10uf cap but resistor is only 220 ohm and I have an extra resistors someone said to add, I'll add the schematic.
Mar 16, 2021 at 6:20 history answered Nick Gammon CC BY-SA 4.0