28123 Parallax Inc, 28123 Datasheet - Page 205

• 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

DO
LOOP
Your Turn – Adjusting the Display
Span and Time Span have + and – buttons that you can click to increase or decrease the
vertical and horizontal scales. Span is to the left of the area that displays the graph, and
you can use it to adjust the maximum and minimum values displayed on the graph. Time
Span is below the graph, and you can use it to change how many seconds worth of values
plotted in the window.
If you have difficulty finding your plot, you can always press and release the Reset button
on your Board of Education or BASIC Stamp HomeWork Board to restore the default
settings.
ACTIVITY #3: TRACKING LIGHT EVENTS
One of the more useful features of the BASIC Stamp module’s program memory is that
you can disconnect the power, but the program is not lost. As soon as you reconnect
power, the program starts running again from the beginning. Any portion of the program
memory that is not used for the program can be used to store data. This memory is
especially good for storing data that you do not want the BASIC Stamp to forget, even if
power is disconnected and reconnected.
The chip on the BASIC Stamp that stores program memory and data is shown in Figure
7-7.
programmable read-only memory. That’s quite a mouthful, and pronouncing each of the
first letters in EEPROM isn’t much better. When people talk about an EEPROM, it is
usually pronounced “E-E-Prom”.
HIGH 2
PAUSE 100
RCTIME 2, 1, time
DEBUG DEC time, CR
√
This chip is called an EEPROM.
Experiment with increasing and decreasing these values and note their effects
on the how the graph appears.
EEPROM stands for electrically erasable