sensor-LDR-dat
"CDS photoresistor" or "CDS LDR (Light Dependent Resistor)".
CDS stands for Cadmium Sulfide, which is the main material of this type of photoresistor.
Photoresistor or LDR (Light Dependent Resistor) are common names for this component.
boards
SCH
to the ESP32-dat pin 34
