28029 Parallax Inc, 28029 Datasheet - Page 32

• 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

Figure 1-13: Predefined Custom Characters O (Backslash) and 1 (Tilde)
Page 20 · Smart Sensors and Applications
Example Program: PredfinedCustomCharacters.bs2
This example sends the serial LCD the two commands to make it display Custom
Characters 0 and 1, the backslash "\" and tilde "~".
' Smart Sensors and Applications - PredefinedCustomCharacters.bs2
' {$STAMP BS2}
' {$PBASIC 2.5}
SEROUT 14, 84, [22, 12]
PAUSE 5
' Display pre-defined custom characters: "\" (custom-character-0) and
' "~" (custom-character-1).
SEROUT 14, 84, [0, 1]
Defining (and Redefining) Custom Characters
The Parallax Serial LCD's custom characters are stored in its RAM. To define one of its
eight custom characters, your
custom characters you are defining and then describe the on/off states of each pixel in the
character. Each character has 40 pixels, 8 pixels tall by 5 pixels wide.
Figure 6-14 shows the Define commands you can send the LCD to tell it which custom
character you are about to define. You can also think about it like this: to tell the LCD
which custom character you are defining, send the value of the custom character plus
248. For example, if you want to define Custom Character 0, send
define Custom Character 1, send
√
Enter and run the program, and verify that it displays the backslash and tilde.
SEROUT
249
, and so on up to
command has to tell the LCD which of the eight
' Initialize LCD
' 5 ms delay for clearing display
255
for Custom Character 7.
248
, if you want to