Page 27 - Robo_Genius_V1.0_flipbook_C7

Step 9 Insert an LED, a 330Ω resistor, and a 100kΩ resistor as shown in the image.

Step 10 Connect one terminal of the LDR sensor to the Base and the other to the emitter of the NPN
transistor.

Step 11 Connect the emitter of the transistor to the negative rail of the breadboard.

Step 12 One end of the 100kΩ resistor is connected to the positive rail and connect the other end
to the base of the transistor.
Step 13 Connect the shorter lead (cathode) of the LED to the collector terminal of the transistor.

Step 14 Connect the longer lead (anode) of the LED to the 330 Ωresistor.

Hands-On Electronics with Breadboard-Based Kit 25