28123 Parallax Inc, 28123 Datasheet - Page 298

• 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

' -----[ Subroutine - Read_Photoresistor ]---------------------------------
Read_Photoresistor:
Your Turn – Modifying Subroutines
Terminals are not the only application for
the four different subroutines one after another, here is a way to do it:
Notice that the two subroutines that do the terminal work were commented and the
ON…GOSUB
ACTIVITY #4: DEVELOPING AND ADDING A SOFTWARE SUBSYSTEM
Let’s say that your sensor array is getting placed in a device that only certain employees
are allowed to use, and they have to supply a password. This means you will have to
expand your program so that it saves and verifies a password. It’s better to write a
password program that functions on its own first, and then add it to your larger program.
RETURN
HIGH PhotoPin
PAUSE DelayRc
RCTIME PhotoPin, 1, time
DEBUG CLS, ? time, "
PAUSE DelayReader
RETURN
√
√
√
DO
LOOP
Save
TerminalOperatedSensorArrayYourTurn.bs2.
Modify the main routine by making the changes just discussed.
Run the program and verify that it cycles through the measurements.
command was placed in a
' GOSUB Display_Menu
' GOSUB Get_Request
FOR request = 0 TO 3
NEXT
ON request GOSUB Read_Pushbutton_1, Read_Pushbutton_2,
your
example
"
Read_Pot, Read_Photoresistor
FOR…NEXT
program
ON…GOSUB
loop.
. For example, if you want to call
under
the
new
name: