Elenco Upgrade Kit SC300 to SC750 - Manual (Page 59)

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OBJECTIVE: To construct a light-controlled display for lower case
letters.
Connect C, D, E, F & G to the circuit. Turn on the slide switch (S1) and
the display should be off. Place your hand over the photoresistor (RP),
now the letter “b” lights.
Automatic Display Letter “b”
Project #495
Project #497
OBJECTIVE: To light the letter “d” using a light-controlled display.
Use the circuit from project #495. Connect B, C, D, E, & G to the circuit. Turn on
the slide switch (S1) and the display should be off. Place your hand over the
photoresistor (RP), now the letter “d” lights.
Automatic Display Letter “d”
OBJECTIVE: To light the letter “c” using a light-controlled
display.
Use the circuit from project #495. Connect E, D, & G to the circuit. Turn
on the slide switch (S1) and the display should be off. Place your hand
over the photoresistor (RP), now the letter “c” lights.
Automatic Display Letter “c”
Project #496
Project #498
OBJECTIVE: To light the letter “e” using a light-controlled display.
Use the circuit from project #495. Connect A, B, D, E, F, & G to the circuit. Turn
on the slide switch (S1) and the display should be off. Place your hand over the
photoresistor (RP), now the letter “e” lights.
Automatic Display Letter “e”
Project #499
OBJECTIVE: To light the letter “h” using a light-controlled display.
Use the circuit from project #495. Connect F, E, C, & G to the circuit. Turn on the
slide switch (S1) the display should be off. Place your hand over the
photoresistor (RP), now the letter “h” lights.
Automatic Display Letter “h”
Project #500
OBJECTIVE: To light the letter “o” using a light controlled display.
Use the circuit from project #495. Connect C, D, E, and G to the circuit. Turn on
the slide switch (S1) the display should be off. Place your hand over the
photoresistor (RP), now the letter “o” lights.
Automatic Display Letter “o”