Page 45 - The Basics IA by ETron Circuit Labs

Here’s What You’ll Need...R3RESISTORhole 6dhole 19h220 Ohm - (Red, Red, Brown,R4 hole 8h Gold) hole 19iR2 R1220 Ohm - (Red, Red, Brown, Gold)hole 20chole 20b1K $ (Brown, Black, Red, Gold) hole 21b6.8K & (Blue, Gray, Red, Gold) a b c d e 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 a b c d e f g h i j 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 f g h i j C1ELECTROLYTIC CAPACITORS hole 21h10uF hole 20hAnode CathodeLIGHT EMITTING DIODE(LED)hole 7bLED 1Cathode (flat side)LED 2Cathode (flat side)hole 6bhole 8i hole 7iIC 1INTEGRATED CIRCUIThole 19d hole 24bnot used123holes 21f - 18fB1POTENTIOMETER R58 7 6 5 holes21e-18e4REDBLACKSCAN HERE TO SEE MORE ONLINEW1 = 21a & 30b W2 = 7c & 30a W3 = 21j & 18gW4 = 7j & 30j W5 = 21d & 18g W6 = 19b & 20ghole 24cred = hole 30e black = hole 30hWIRES43When Pin 3 is HI, LED 2 lights up. When Pin 3 is LO, LED 1 lights up. The 220 Ohm resistors keep the current from being too high and burning out the LEDs.Procedure:Assemble the circuit and connect a 9-volt battery to the Battery Snap and you will see the LEDs blink back and forth. The speed of the blinking can be adjusted by rotating the shaft of the potentiometer.Check Your Work HereLAB 22AnodeAnodeVisit us online at www.ETronCircuit.com for more exciting projectsLab Observations