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| Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. |
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4th January 2005, 07:56 PM
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 almost finished I have already done a home-made circuit board, however I found that some noise is inserted trhough the ground path, so The ADC catch a bad read an then opens the interruptor, I read the signal by RA0/AN0 pin from the PIC16F870 What you recommend me to do in order to stop this transient voltage in the ground path? does a varistor and a ceramic capacitor of .1uF both of them connected in parallel in the AC main line will correct this kind of noise? this transient voltages appear when I turn on/off an electronic device or a flourescent lamp? I checked the ground paths but they still appear here is the printed circuit board, and all diagrams are in this topic Thank in advanced!, Happy new year! | |
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4th January 2005, 08:33 PM
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| This is the noise I see using the oscilloscope in the RA0/AN0 pin of the PIC16F870 | |
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Linear Mode
