28123 Parallax Inc, 28123 Datasheet - Page 138

• Manufacturer Part Number: 28123
• Description: TEXT WHAT'S A MICROCONTROLLER
• Manufacturer: Parallax Inc
• Type: Programmingr

Specifications of 28123

• Style: Book
• Title: What's a Microcontroller?
• Contents: Whats a Microcontroller? Text
• Product: Microcontroller Accessories
• Core Processor: PIC16C57c
• Flash: 128 Bytes
• Operating Supply Voltage: 9 V
• Board Size: 31 mm x 16 mm
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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