www.pudn.com > the PC Host examples .zip > Temperature.frm
VERSION 5.00
Begin VB.Form DisplayWindow
BackColor = &H00FF8080&
Caption = "USB Design By Example: Thermometer Examples"
ClientHeight = 5595
ClientLeft = 60
ClientTop = 345
ClientWidth = 8475
FillColor = &H00FFFFFF&
FillStyle = 0 'Solid
LinkTopic = "Form1"
ScaleHeight = 5595
ScaleWidth = 8475
StartUpPosition = 3 'Windows Default
Begin VB.Timer Timer1
Interval = 200
Left = 7920
Top = 120
End
Begin VB.TextBox UpperLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 5
Left = 5520
MaxLength = 2
TabIndex = 24
Text = "25"
Top = 4800
Width = 1215
End
Begin VB.TextBox UpperLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 4
Left = 5520
MaxLength = 2
TabIndex = 23
Text = "70"
Top = 4200
Width = 1215
End
Begin VB.TextBox UpperLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 3
Left = 5520
MaxLength = 2
TabIndex = 22
Text = "25"
Top = 3600
Width = 1215
End
Begin VB.TextBox UpperLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 2
Left = 5520
MaxLength = 2
TabIndex = 21
Text = "25"
Top = 3000
Width = 1215
End
Begin VB.TextBox UpperLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 1
Left = 5520
MaxLength = 2
TabIndex = 20
Text = "25"
Top = 2400
Width = 1215
End
Begin VB.TextBox UpperLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 0
Left = 5520
MaxLength = 2
TabIndex = 19
Text = "25"
Top = 1800
Width = 1215
End
Begin VB.TextBox LowerLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 5
Left = 2880
MaxLength = 2
TabIndex = 18
Text = "15"
Top = 4800
Width = 1215
End
Begin VB.TextBox LowerLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 4
Left = 2880
MaxLength = 2
TabIndex = 17
Text = "40"
Top = 4200
Width = 1215
End
Begin VB.TextBox LowerLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 3
Left = 2880
MaxLength = 2
TabIndex = 16
Text = "15"
Top = 3600
Width = 1215
End
Begin VB.TextBox LowerLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 2
Left = 2880
MaxLength = 2
TabIndex = 15
Text = "20"
Top = 3000
Width = 1215
End
Begin VB.TextBox LowerLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 1
Left = 2880
MaxLength = 2
TabIndex = 14
Text = "15"
Top = 2400
Width = 1215
End
Begin VB.TextBox LowerLimit
Alignment = 2 'Center
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 0
Left = 2880
MaxLength = 2
TabIndex = 13
Text = "15"
Top = 1800
Width = 1215
End
Begin VB.TextBox Temperature
Alignment = 2 'Center
Enabled = 0 'False
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 5
Left = 4200
TabIndex = 12
Text = "19"
Top = 4800
Width = 1215
End
Begin VB.TextBox Temperature
Alignment = 2 'Center
Enabled = 0 'False
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 4
Left = 4200
TabIndex = 11
Text = "56"
Top = 4200
Width = 1215
End
Begin VB.TextBox Temperature
Alignment = 2 'Center
Enabled = 0 'False
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 3
Left = 4200
TabIndex = 10
Text = "19"
Top = 3600
Width = 1215
End
Begin VB.TextBox Temperature
Alignment = 2 'Center
Enabled = 0 'False
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 2
Left = 4200
TabIndex = 9
Text = "26"
Top = 3000
Width = 1215
End
Begin VB.TextBox Temperature
Alignment = 2 'Center
Enabled = 0 'False
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 1
Left = 4200
TabIndex = 8
Text = "22"
Top = 2400
Width = 1215
End
Begin VB.TextBox Temperature
Alignment = 2 'Center
Enabled = 0 'False
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 18
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Index = 0
Left = 4200
TabIndex = 7
Text = "20"
Top = 1800
Width = 1215
End
Begin VB.Shape Alarm
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 495
Index = 5
Left = 7200
Shape = 3 'Circle
Top = 4800
Width = 495
End
Begin VB.Shape Alarm
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 495
Index = 4
Left = 7200
Shape = 3 'Circle
Top = 4200
Width = 495
End
Begin VB.Shape Alarm
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 495
Index = 3
Left = 7200
Shape = 3 'Circle
Top = 3600
Width = 495
End
Begin VB.Shape Alarm
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 495
Index = 2
Left = 7200
Shape = 3 'Circle
Top = 3000
Width = 495
End
Begin VB.Shape Alarm
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 495
Index = 1
Left = 7200
Shape = 3 'Circle
Top = 2400
Width = 495
End
Begin VB.Label Heading
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Upper"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 14.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 375
Index = 1
Left = 5520
TabIndex = 26
Top = 1320
Width = 1215
End
Begin VB.Label Heading
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Lower"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 14.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 375
Index = 0
Left = 2880
TabIndex = 25
Top = 1320
Width = 1215
End
Begin VB.Shape Alarm
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 495
Index = 0
Left = 7200
Shape = 3 'Circle
Top = 1800
Width = 495
End
Begin VB.Label Title
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Adding Temperature Limits"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 24
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 1095
Left = 0
TabIndex = 6
Top = 360
Width = 8535
End
Begin VB.Label Label
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Sensor 6"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 20.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 615
Index = 5
Left = 600
TabIndex = 5
Top = 4800
Width = 1935
End
Begin VB.Label Label
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Sensor 5"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 20.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 615
Index = 4
Left = 600
TabIndex = 4
Top = 4200
Width = 1935
End
Begin VB.Label Label
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Sensor 4"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 20.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 615
Index = 3
Left = 600
TabIndex = 3
Top = 3600
Width = 1935
End
Begin VB.Label Label
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Sensor 3"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 20.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 615
Index = 2
Left = 600
TabIndex = 2
Top = 3000
Width = 1935
End
Begin VB.Label Label
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Sensor 2"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 20.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 615
Index = 1
Left = 600
TabIndex = 1
Top = 2400
Width = 1935
End
Begin VB.Label Label
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "Sensor 1"
BeginProperty Font
Name = "Arial Rounded MT Bold"
Size = 20.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 615
Index = 0
Left = 480
TabIndex = 0
Top = 1800
Width = 2175
End
End
Attribute VB_Name = "DisplayWindow"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' This example operates a little differently than described in Chapter 9 (it's simpler)
' Both examples (Reading Temperatures and Adding Temperature Limits) use the same code,
' only the display is different.
' Every 200msec the Lower and Upper Limits are downloaded to the IO Device which replys
' with the current temperatures and an ALARM byte [Bit 0 = Alarm(0), Bit(1) = Alarm(1), etc]
'
' For ease of display the temperature ranges are restricted 00 to 99 (you can change this)
'
Private Limits As Boolean ' Choose between Example 1 or 2
Private Red, Black As Long
Private Sub Form_Load()
' This module contains both Thermometer examples, set "Limits" = TRUE for example 2
Limits = True
Red = RGB(255, 0, 0): Black = RGB(0, 0, 0) ' Initialize my ALARM colors
If Not Limits Then ' Hide all of the extra display for example 2
For i% = 0 To 5: LowerLimit(i%).Visible = False: UpperLimit(i%).Visible = False: Alarm(i%).Visible = False: Next i%
Heading(0).Visible = False: Heading(1).Visible = False
Title.Caption = "Reading Temperatures"
End If
End Sub
Private Sub Timer1_Timer()
' Update Limits and check for temperature changes every 200msec
Dim Temperatures(6) As Byte ' Note Temperature(6) is the ALARM indicator
Dim Alarms As Byte: Dim Buffer(11) As Byte
For i% = 0 To 5: Buffer(i%) = Val(LowerLimit(i%).Text): Buffer(6 + i%) = Val(UpperLimit(i%).Text): Next i%
Call WriteUSBdevice(AddressFor(Buffer(0)), 12) 'Update limits
Call ReadUSBdevice(AddressFor(Temperatures(0)), 7) ' Read current temperature
'For i% = 0 To 5: Temperatures(i%) = ((i% + 2) * 10) + i%: Next i%: Temperatures(6) = &H39
Alarms = Temperatures(6)
For i% = 0 To 5 ' Update temperature display and show ALARMs if present
Temperature(i%).Text = TwoDecimalCharacters$(Temperatures(i%))
If ((Alarms And 1) = 1) And (Alarm(i%).FillColor = Black) Then Alarm(i%).FillColor = Red
If ((Alarms And 1) = 0) And (Alarm(i%).FillColor = Red) Then Alarm(i%).FillColor = Black
Alarms = (Alarms And &HFE) / 2 ' Clear Bit 0 before divide
Next i%
' NOTE: a real program would do something significant when an ALARM was detected
End Sub