Stable ADC readings

[mister_e]

busted .....

[HankMcSpank]

So to summarize 'in speak' that won't scare folks who thought if/then statements were an uinsurmountable hurdle.....are we saying that using the ADCIN is not optimum...and if not could someone please post a chunk of code to do this in an alternative method?

[mackrackit]

http://www.rentron.com/PICX2.htm

[HankMcSpank]

Excellent.....many thanks, I shall use that code gratuitously.

[Ioannis]

Have you tested this fast averaging with Hysterisis by Darrel:

http://www.picbasic.co.uk/forum/cont...ith-hysteresis

Ioannis

[HankMcSpank]

Yes I have (& very good it is too) , but I'd rather have this jittery AtoD values 'cleaned up' at the source (rather than putting averaging in place to address unstability caused by avoidable factors)

[Bruce]

Just include an RC filter on the A/D input, and put the PIC to sleep just before enabling the A/D conversion. This returns very stable readings in most applications with a stable power supply or Vref.