Page 48 - Robo_Genius_V1.0_flipbook_C8
P. 48

Step 12  Connect the shorter leads (cathodes) of the LEDs to the negative rail of the breadboard.



















                  Step 13  Take a wire, connect one end to the positive rail of the breadboard, and place the other end
                           at the bottom of the water tank.


















                  Step 14  Take three more wires, connect one end of each wire to the base of each of the three NPN
                           transistors, and place the other ends at different levels inside the tank.


















                  Step 15  Insert a buzzer into the breadboard.




















                       46    RoboGenius (V1.0)-VIII
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