ldr sensor | Miscellaneous › Others › ldr sensor › ldr sensor August 4, 2015 at 12:44 pm #13136 Prabakaran P MParticipant Hi erika, Connect one end of LDR to ground and the other end to positive through a resistor not less than 1K. Connect the common point of LDR and the resistor to one of the ADC pin of the ATMEGA.
