28029 Parallax Inc, 28029 Datasheet - Page 47

• Manufacturer Part Number: 28029
• Description: KIT PARTS SMART SENSORS W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28029

• Accessory Type: Parts Kit
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: BASIC Stamp® or Javelin Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 28029PAR

This chapter also introduced a subroutine for scrolling text from right to left inside a
window. This subroutine looks for start and stop addresses that correspond to Symbol
address labels that precede the
way the subroutine's text is displayed is defined by five variables:
messageEnd
messageEnd
displayed. The
character addresses that define the window, and the increment variable stores how many
characters at a time the message is shifted from right to left.
Questions
Exercises
1. What are three devices you use every day that display information with LCDs?
2. What do the 2 and 16 indicate in the term 2x16 LCD?
3. What command do you use to send information to the Parallax Serial LCD?
4. How are the
5. What position do SW1 and SW2 need to be in if you want to write a program
6. What component do you adjust to change the LCD's display contrast?
7. What
8. What special considerations come into play when using the
9. What three arguments do you need for a minimal
10. How can you make the text displayed in the LCD flash on and off?
11. What ranges of values can you send to the LCD to place the cursor?
12. What character resides in Custom Character 1 by default?
13. How do you display a custom character after it has been defined?
14. What are some applications of sliding window?
1. Make the message "Hello" appear in the Debug Terminal without using the
2. Display the message "Hello" centered on the top line of the LCD.
3. Make the message "Hello" flash on and off once every second.
4. Write a command to make the message "Start" appear at the beginning of Line 0
that sends messages to the Parallax Serial LCD at a rate of 19,200 bps?
CR
DEBUG
and the message "Finish" appear on the right side of Line 1.
,
CLS
,
variables store the starting and ending EEPROM addresses of the text to be
windowLeft
SEROUT
command.
, and
windowLeft
DEBUG
HOME
command will clear the display?
,
control codes with the Parallax Serial LCD?
and
windowRight
and
DATA
SEROUT
windowRight
directives that contain the text to be displayed. The
commands different?
, and
Chapter 1: Parallax Serial LCD Display · Page 35
increment
variables store the start and end LCD
SEROUT
. The
command?
messageStart
DEBUG
messageStart
command's
and
,