28122 Parallax Inc, 28122 Datasheet - Page 138

• Manufacturer Part Number: 28122
• Description: KIT WHAT'S A MICRO:PARTS ONLY
• Manufacturer: Parallax Inc

Specifications of 28122

• Accessory Type: Parts Kit
• Product: Microcontroller Accessories
• Core Processor: PIC16C57c
• Flash: 128 Bytes
• Operating Supply Voltage: 9 V
• Board Size: 31 mm x 16 mm
• For Use With/related Products: Board of Education Full Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Adding the Pushbutton Control Circuit
Figure 4-20 shows the pushbutton circuits that you will use to control the servo.
√
Add this circuit to the servo+LED circuit that you have been using up to this
point. When you are done your circuit should resemble:
•
•
•
P4
P3
Figure 4-21 if you are using the Board of Education Rev C
Figure 4-22 if you are using the HomeWork Board
Figure 4-23 if you are using the Board of Education Rev B
220
220
Ω
Ω
Vss
10 k
Ω
Vss
10 k
Vdd
Ω
Vdd
Figure 4-20
Pushbutton
Circuits for
Servo Control