Circuit schematic symbols #

To see how to draw the circuit schematic symbol for common parts, check out this Sparkfun reference sheet

Datasheets for useful parts #

Connectors #

• DC power (barrel) jack, 2.1 mm x 5.5 mm
• Screw terminal, 5mm pitch
• Pushbutton tactile switch, 6mm x 6mm

Capacitors #

• 100 uF aluminum electrolytic capacitor

LEDs #

• 5 mm LED

MOSFETs #

• P-channel FQP27P06 MOSFET, 27 A, 60 V, TO-220 package
• N-channel IRLB8721 MOSFET, 30 A, 60 V, TO-220 package

Motors #

• TJZ37RGa DC gearmotor, 12 V, 200 RPM
• NEMA 17 stepper motor, 12 V, 200 step

Photoresistors (light sensors) #

• 5mm, 100 mW light dependent resistor

Resistors #

• 1/4 W resistor
• Resistor color code chart

Voltage regulators #

• LD33V/LM1117 voltage regulator, 800 mA, 3.3 V, TO-220 package
• LM7805 voltage regulator, 1.5 A, 5.0 V, TO-220 package

Transistors #

• PN2222 NPN transistor, 600 mA, 30 V, TO-92 package
• 2N3904 NPN transistor, 200 mA, 40 V, TO-92 package
• PN2907 PNP transistor, 800 mA, 40 V, TO-92 package

Trimmer potentiometers (variable resistors) #

• 10k trimmer potentiometer