122-28176 Parallax Inc, 122-28176 Datasheet - Page 109

• Manufacturer Part Number: 122-28176
• Description: GUIDE STUDENT PROCESS CONTROL
• Manufacturer: Parallax Inc

Specifications of 122-28176

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Propeller Education (PE) Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Chapter 4: Sequential Processes and Optical Switches · Page 99
The three input switches are all Active-LOW, and the three outputs are all Active-HIGH.
In Figure 4-12 the sequence of operations can clearly be seen in the traces for both inputs
and outputs.
Figure 4-12 Fill, Mix and Drain Batch Sequence Plot
PROGRAM DISCUSSION
Unlike the previous StampPlot interfaces used, this one was designed to be more
programmer-friendly for use. Previous macros had code within them to update gauges,
meters, text boxes, and for other needs. This macro is not as intelligent in that the BASIC
Stamp must send the data to update the various objects on the plot screen, but this also
makes the interface more flexible.
Each control has a name. The three virtual indicating lights are named
,
and
imgR
imgY
. The corresponding text boxes for each are
,
and
. From the
imgG
txtR
txtY
txtG
BASIC Stamp a
instruction can update the controls depending on need. For
DEBUG