28123 Parallax Inc, 28123 Datasheet - Page 162

• 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

(4) Jumper wires
Building the Dial and Servo Circuits
This activity will use two circuits that you have already built individually: the
potentiometer circuit from the activity you just finished and the servo circuit from the
previous chapter.
Programming Potentiometer Control of the Servo
You will need the smallest and largest value of the
your RC-time circuit while using a 0.1 µF capacitor.
For this next example, here are the
technician; your values will probably be slightly different:
√
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√
If you have not already completed the Your Turn section of the previous activity,
go back and complete it now.
All the way clockwise:
All the way counterclockwise:
Leave your potentiometer RC-time circuit from Activity #3 on your
prototyping area. If you need to rebuild it, use Figure 5-11 on page 150 and
Figure 5-12 on page 151. Make sure to use the 0.1 µF capacitor, not the 0.01
µF capacitor.
Add your servo circuit from Chapter #4, Activity #1 to the project. Remember
that your servo circuit will be different depending on your carrier board.
Below are the pages for the sections that you will need to jump to:
CAUTION: use only a Parallax Standard Servo for the activities in this text!
Do not substitute a Parallax Continuous Rotation Servo, as it may be quickly damaged by
the circuits shown below. Likewise, we do not recommend using other brands of standard
hobby servos, which may not be rated for use with the voltage supplied in these circuits.
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Page 105 – Board of Education Rev C
Page 111 – Board of Education Rev B
Page 108 – BASIC Stamp HomeWork Board
time
1
691
values that were measured by a Parallax
time
variable that you recorded from