Did you get the worksheets with the kit? Because they explain how the circuits work:
EduKit2/CamJam EduKit 2 - GPIO Zero/CamJam EduKit 2 - Sensors Worksheet 4 (GPIO Zero) - Light.pdf at master · CamJam-EduKit/EduKit2
LDRs are usually measured with an analogue to digital converter. Raspberry Pis don't have these on their GPIO, so instead they measure how long it takes to charge a capacitor through the LDR. If the LDR's resistance is high (in low light), the capacitor will charge more slowly than if the LDR's resistance is low (in bright light)
EduKit2/CamJam EduKit 2 - GPIO Zero/CamJam EduKit 2 - Sensors Worksheet 4 (GPIO Zero) - Light.pdf at master · CamJam-EduKit/EduKit2
LDRs are usually measured with an analogue to digital converter. Raspberry Pis don't have these on their GPIO, so instead they measure how long it takes to charge a capacitor through the LDR. If the LDR's resistance is high (in low light), the capacitor will charge more slowly than if the LDR's resistance is low (in bright light)
Statistics: Posted by scruss — Wed May 29, 2024 9:20 pm