i wondering myself why should put 10k resistor ldr?
if put "stronger" resistor resistor (in case ldr), i'd lower voltage, , i'd, too, lower value in analogread(). i'd know in 'm wrong. can me?
if put "stronger" resistor resistor (in case ldr), i'd lower voltage, , i'd, too, lower value in analogread(). i'd know in 'm wrong. can me?
so, what's problem?
you create voltage divider 1 resistor being ldr. 10k right have range daylight etc can use value if want. don't go low of current trough resistors/ldr gets high.
you create voltage divider 1 resistor being ldr. 10k right have range daylight etc can use value if want. don't go low of current trough resistors/ldr gets high.
Arduino Forum > Using Arduino > General Electronics > Why should I put a 10K resistor with a LDR?
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