POT with LDR

[Acetronics2]

Hi, Stu

Everything in the manual ; 5k to 50k for LDR resistance ... no less, no more

Have a look to RCTime ... wider possible range !!!

Alain

[stu746]

in the end i connected both the cap and ldr to gnd but still was not right, so used to following code and seems to work fine

aa var word

trisd.7=0
high portd.7
pause 500
trisd.7=1
loop6:
aa=aa+1
if aa=65000 then aa=aa-1
if portd.7 = 1 then loop6



serout portb.0,n2400,[#aa,13,10]

there is probably a better way to do it, but this seems to work for me

[NavMicroSystems]

Stu,

as Alain already mentioned, it's all in the Manual.

POT is a bit of a pain, does your PIC have a spare ADC?

if yes, wire the LDR with an additional resistor as voltage divider and use ADCIN