28123 Parallax Inc, 28123 Datasheet - Page 158

• 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

Building an RC Time Circuit for the BASIC Stamp
Figure 5-11 shows a schematic for the fast RC-time circuit, and Figure 5-12 shows the
wiring diagram. This is the circuit that you will use to monitor the position of the
potentiometer’s input shaft with the help of the BASIC Stamp and a PBASIC program.
√
P7
Build the circuit shown in Figure 5-11.
220
Ω
0.1 µF
0.01 µF
nc
Pot
10
kΩ
Vss
Figure 5-10
Ceramic Capacitors
The 0.1
and the 0.01
(below) are both non-polar.
You will not have to worry
about positive and negative
leads with these two parts.
µ
F capacitor (above)
0.1 µF
µ
F capacitor
Figure 5-11
BASIC Stamp
RCTIME Circuit
with Potentiometer