Electronics Workshop Handout Developed by Shodor and Dr. Rhett Davis, North Carolina State University

Circuit Elements

Battery

Resistor

Light Emitting Diode (LED)

red wire black wire

long lead short lead + - anode cathode

+ -

Capacitor

Zener Diode

555 Timer

OUTRESET CTRL

VCCDIS

THRSH

GNDTRIG

long lead short lead no stripe stripe

VCC

NCNC

NCR0(2)R0(1)CKB

GND

QCQB

QD

CKANCQA

no stripe stripe anode cathode + - + -

Electronics Workshop Handout Developed by Shodor and Dr. Rhett Davis, North Carolina State University

Light Emitting Diode (LED) Circuit

9VoltBattery

10 kΩ

Voltage Regulator Circuit

9VoltBattery

250 Ω

5.1 VoltZener Diode

5.1 VoltRegulator

Output

Electronics Workshop Handout Developed by Shodor and Dr. Rhett Davis, North Carolina State University

555 Timer Circuit

9 Volt Battery + leador

5.1 Volt Regulator Output

OUTRESET CTRL

VCCDIS

THRSH

GNDTRIG

555 Timer

10 kΩ

10 kΩ

10 kΩ555

Timer Output

Electronics Workshop Handout Developed by Shodor and Dr. Rhett Davis, North Carolina State University

7493 Counter Circuit

7493 Counter

VCC

NCNC

NCR0(2)R0(1)CKB

GND

QCQB

QD

CKANCQA

10 kΩ

10 kΩ

10 kΩ

5.1 VoltRegulator

Output

555 Timer Output