Light Sensor with LED Control
Back in Chapter 5 we showed you how to build your own light sensors with CdS Light Dependent Resistors (LDRs). However, they lacked the capability to generate light like the LEGO sensor does. This capability is particularly useful for sensing objects by reflecting light off of them instead of just measuring the ambient light level. In this chapter we will show you how to add the same LED illumination control as the LEGO Light sensor.
KeywordsLight Level Light Sensor Ambient Light Level Light Threshold Prototype Board
Unable to display preview. Download preview PDF.