rpi projects build a buggy
https://projects.raspberrypi.org/en/projects/build-a-buggy

rpi projects node-RED
https://projects.raspberrypi.org/en/projects/getting-started-with-node-red

gpiozero ldr
https://gpiozero.readthedocs.io/en/stable/api_input.html?highlight=ldr#lightsensor-ldr

ldr
https://components101.com/ldr-datasheet

NORP2 LDR Datasheet – RS

Click to access LDR%20Datasheet.pdf

NORP2 LDR Datasheet – Silonex

Click to access norp12.pdf

GPIO.ZERO Light Sensor Class Spec
https://gpiozero.readthedocs.io/en/stable/api_input.html#lightsensor-ldr

PCF8591 ADC DAC AD/DA Analog Digital Converter Module $2.40

PCF8591 ADC DAC AD/DA Analog Digital Converter Module

5mm Mini Photocell 5528, CdS cell $1.1 for 20 pcs (Light resistance ~1k, Dark: ~10k Ohm Max power: 100mW)

20PCs 5mm Mini Photocell 5528, CdS cell