VS 2005 : Increase The Voltage Level Of A PC?
Jan 21, 2010i want to increase the voltage level of the electricity?
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VS 2008 Getting Voltage From RS232 / Allow Dial Voltmeter To Point According To Voltage Level
Dec 2, 2009my circuit board is connected to a power supply(those laboratory DC power supply used in schools) and the circuit is connected to the computer via a RS232 Serial cable port.Through the serial cable port, a voltage level is sensed and is displayed on the "Voltage Level in Volts(V)" i am able to display a Dial Voltmeter with a needle. -- Coding for the dial voltmeter with needle is also attached for reference, just in case if it is needed.But currently, the dial voltmeter's needle does not point according to what is shown on the textbox. Therefore, i need guidance on how to allow the dial voltmeter's needle to point according to what is shown on the textbox. [code]
View 13 RepliesGetting Voltage From RS232 & Allow Dial Voltmeter To Point According To Voltage Level
Dec 3, 2009Basically, my circuit board is connected to a power supply(those laboratory DC power supply used in schools) and the circuit is connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed and is displayed on the "Voltage Level in Volts(V)" -- See attach image
>> But currently, the dial voltmeter's needle does not point according to what is shown on the textbox.
>> Therefore, i need guidance on how to allow the dial voltmeter's needle to point according to what is shown on the textbox.
[[ Dial Voltmeter with needle ]]
Code:Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
[CODE]...
Converting Voltage Level Into Graphical Display?
Nov 25, 2009I need some guidance on the codes on how to :
1) convert voltage level into graphical display,and
2) Voltage indication with moving needle .
[ Info : I've already input the codes to display the voltage in numeric, but not in graphical display ] =)
Converting Voltage Level To Oscilloscope Waveform
Dec 6, 2009Basically, my circuit board is connected to a solar cell and also a power supply(those laboratory DC power supply used in schools) and its connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed and is displayed on the "Voltage Level in Volts(V)" -- See attach imageAs for now, i am also needed to display the voltage level into another type form intead of just Dial Voltmeter. Maybe to display the voltage level to a waveform like what we see on the oscilloscope ? I came across a suggestion from someone regarding the oscilloscope, but its in C# instead, and after converting, the codes does not work. Hmm.. ?
>> Therefore, i hope to get some guidance on how to display the voltage level into a waveform as what we see on the oscilloscope.
VS 2008 Voltage Level Into Oscilloscope Waveform?
Dec 6, 2009As mention in another thread ( if you have came across it --> Getting voltage from RS232 & allow dial voltmeter to point according to voltage level ), my circuit board is connected to solar cell and also a power supply(those laboratory DC power supply used in schools) and its connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed and is displayed on the "Voltage Level in Volts(V)" -- See attach imageAs for now, i am also needed to display the voltage level into another type form intead of just Dial Voltmeter.Maybe to display the voltage level to a waveform like what we see on the oscilloscope ? I came across a suggestion from someone regarding the oscilloscope, but its in C# instead, and after converting, the codes does not work.
View 8 RepliesReturn Positive Voltage Or Negative Voltage?
Sep 14, 2009I have this light sensor circuit that will return positive voltage or negative voltage. I want to plug it into the 9-pin D-Sub port on my computer. I already have a male connector. How do I connect the circuit to the D-Sub connector, and how do I read the value and convert it to a Boolean in a program? How do I set up the cables? It only returns one 1 or 0 value. Is it possible, even?
View 17 RepliesVS 2005 Use MSCOMM For Monitoring Serial Ports For Voltage Change?
Jul 22, 2009I'm wondering how I could monitor a serial port for a voltage change or contact closure and have an event triggered when there is a detection.
View 1 RepliesCode An 'increase' Button To Prompt A User To Input A Rate By Which To Increase Select Prices In An Array?
Feb 16, 2009I'm trying to code an 'increase' button to prompt a user to input a rate by which to increase select prices in an array.It should request the increased rate, then request a number from one to five, representing which price in the array to increase.Then, if 'increase' button is selected again and another number from one to five is chosen, then that element should be increased.It's working, but all the numbers in the array are changed. And, when I hit the increase button again, the array is repopulated below the first price increases instead of only replacing the designated price.
'declare 5 element array of prices
Dim prices() As Double = {12.2, 8.5, 12, 50, 2.4}
Dim rateIncrease As Decimal
Dim isConverted As Boolean
[code].....
Build Number Auto-increase Vb 2005?
Aug 16, 2009I saw lots of things online that look like you can't create a number that increments with every build automatically - rather you have to set it in AssemblyInfo.vb - is that really the case??
View 4 RepliesVS 2005 Form Level Exception Trap
Apr 1, 2009I have a form with a button that brings up a different form. In some versions of this program (don't ask), the second form is shown non-modally, but in my version it is shown modally. The point of that last statement is that the second form can be either modal or non-modal, so an answer needs to handle either one, but the modal option is more valuable.If form 2 throws an exception that is not handled, the exception is caught somewhere on Form1, though the exact place that it is caught is largely dependent on where the exception was thrown from. The question is this: I need a means to trap all exceptions raised on Form2 or anything called from Form2 such that no exception EVER propagates out of Form2 to be caught in Form1. The reason for this is that Form2 HAS to perform some cleanup for reasons that I have zero control over. That cleanup doesn not absolutely require user input, but it would be good to have some.Is there any event that is fired if a form is exited due to a call stack unwinding as an unhandled exception propagates up the stack?
View 7 RepliesVS 2005 Search Tree Node From Different Level
Mar 25, 2010how can I search for a text in a tree view but by being able to tell from which level I want to start searching?
View 1 RepliesFind A Toolbox For VB 2005 Or 2008 That Allow To Create Level?
Aug 12, 2009Does anybody know where to find a toolbox for Visual Basic 2005 or 2008 that allow to create level, button, display or other special box used on a bridge of a ship? I want to simulate a small bridge of a ship and I need something that allow me to display engine power, rotation speed, level of pressure, compass and so on.
View 6 RepliesVS 2005 : Can Alias A Project Level Imports Statement
May 12, 2011I know you can alias an Imports statement in
Imports xyz = ProjectABC.ClassABC
But if I want to use the Project Properties, Reference tab to select a namespace to allow a project-wide setting, is it possible to alias that namespace?
VS 2005 Implement Document Level Password Protection?
May 24, 2012I am trying to figure out a way to implement password protection on documents that a program I am working on creates. They should remain with the document regardless of where it is copied to or sent.Here is a rough sequence of events:
1. Application Opens (no document loaded).
2. User opens document with extension registered to application.(could also be # 1 if they clicked on the document directly)
3. Application Security checks document for security and prompts if necessary.
4. If prompted, user enters password.
5. Application checks password.
6. If passed, document opens, otherwise user is notified of failure.
VS 2005 Saving Battery Level Variable To Text File?
Jul 28, 2010Currently, I've encountered a problem where I do not how I can store the variable of my battery level in a text file. I tried .xml and .txt file and it returns me text which can't be read.The code related:
vb.net
[code]Dim psBattery As PowerStatus = SystemInformation.PowerStatus
Dim perFull As Single = psBattery.BatteryLifePercent
[code]....
The place where I do not know what to insert is the "Insert Battery Percentage Here" part so I guess that's the problem.For your info, if you were to use a MsgBox to display, the code which displays that would be <MsgBox("Total battery power remaining: " & perFull * 100 & "%")>
Application-level KeyUp/KeyDown Events (not Windows Form-level)?
Apr 1, 2012I am creating an Excel add-in written in VB.NET. I would like to bind KeyDown and KeyUp events to the spreadsheet to record when the user presses and releases the arrow keys while navigating the spreadsheetIdeally, these events would be built into Excel alongside the native SheetActivate and SheetSelectionChange events, for example. Alas, they are not.
View 1 RepliesWhat's The Difference Between Dim On The Member Level And Static On The Procedure Level
Jan 6, 2010In Visual Basic 2008, there's two different ways that I know of to accomplish the same thing:The Dim on the member level:
Dim counter1 as integer = 0
Dim counter2 as integer = 180
Public Sub SampleSub1()
[code].....
Audio Announcement Of Voltage?
Nov 28, 2009I was wondering if will it be possible to do the following :1) When a specific voltage is sense and is displayed on the textbox, is there any codes to allow the audio announcement of the voltage ?(a) As voltage levels will usually be in decimal, like for example, (1.23 V) it may be difficult to allow the audio announcement of exact voltages
View 12 RepliesMeasure Voltage And Current?
Apr 13, 2012get sample code by using NI-6009 to measure voltage(Vrms) and Curent (Irms) . Before this i'm trying to make code with using example in National Instrument VB2010.But i still can't display the right values of voltage(Vrms) and Current (Irms) from waveform that I used.The data comes from data acquisition grid in source array i used to plot sinus waveform.But the problem is I don't know how to measure voltage(Vrms) and Curent (Irms) from that waveform. I am also don't know how to start programming between NI-6009 DAQ Card and Visual Basic 2010 Express.
View 1 RepliesVS 2008 Conversion Of Voltage To LUX?
Dec 4, 2009I need some guidance again =)Its regarding the conversion of voltage level to equivalent LUX.As mentioned in prev. few threads, if you have seen it, basically, my circuit board is connected to a solar panel and is connected to a power supply (those laboratory DC power supply used in schools).The whole thing is connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed from the Solar Panel and is displayed on the "Voltage Level in Volts(V)" See attach image
Currently, i need guidance on how to convert the Voltage Level into equivalent LUX.I googled and found from this website >> [URL]../324003.page and it states that Lux = 1333 * Vo , so does it mean that i just type:TextBoxLux.text = TextBoxVoltage.Text * 1333 I'm not sure if this is the correct method to convert voltage level from the solar panel into equivalent LUX. If this method is wrong, please correct me.
[Defination of LUX: The lux (symbol: lx) is the SI unit of illuminance and luminous emittance. It is used in photometry as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface]
Increase The Size Of The List Box As I Increase The Size Of The Panel?
Feb 25, 2010I have added a Split container onto my Form and within bottom Panel I have added a list box.How can I increase the size of the list box as I increase the size of the panel?
View 3 RepliesTop Level SQL Table Row - Save The Top Level Automatically?
Mar 18, 2011I have created a simple program which uses a two tier structure of SQL Tables.At the top level, one record holds the date of the activities and linked to it using its primary key as a foreign key, three subordinate tables hold time stamped records.The issue I have been unable to solve is that before adding any of the lower level records for a given date, a newly added top level record must be saved to the database.Doing this manually is simple - but can I rely on my users to remember to do this before they start plugging in the lower level data?I thought not, so I am looking to save the top level automatically.I've failed miserably but I refuse to believe that it's not possible.
View 14 RepliesSerial Port Programming (voltage)
Apr 6, 2011I have been trying to come up with a code to send voltage signals to a serial port using Visual Studio 2010, I found many codes online but since i am not familiar with visual basic, I do not understand any of them.
View 8 RepliesAny Modules Available For Circuit Calculations? (Voltage / Resistance)
Jun 25, 2010I'm trying to develop a module that calculates voltages in a circuit based on setting for certain components. Is a module available to handle circuit calculations including parallel paths.
View 1 RepliesMultiple Level Of For Each And Linq In Each Level
Feb 12, 2011I have multiple level of For Each and in each level, i have a Linq that is the 'In' criteria as in:
[Code]....
It will go inside each for (because the value is not nothing), however, it will only loop (next) in the very inner 'For Each t In tFor'. After it is finish inner loops, the outer Fors' or Next will not execute... even thought there are more than one values in that 'In'... like 'sFor' or 'fFor'. i've noticed while debuging, while break at the for (for example 'sFor', before stepping in), i get the error message:
"Enumeration yielded no results" when i expand the result for that variable and it will not step into it. but if i do not expand the result, it will step in. It seem that some how, once an element is accessed for that 'In' collection, it breaks (meaning does not loop for the rest of the elements) the next for that collection is this a bug or am i missing something in Linq? BTW: i believe it has something to do with the SqlDataReader in the Linq. I'm working with IAsyncResult.
Import A Platinum Level Advisor .jar To Use With This Platinum Level Product Key?
Nov 10, 2009U0161 import a Platinum level Advisor .jar to use with this Platinum level product key.How I can get this and import it to continue my completion of setup of mysql download?From where I can download that file?To enable this application, please provide a MySQL Enterprise Product Key or your MySQL Enterprise credentials.
View 1 RepliesHow To Increase A Character
Jan 29, 2009I have a string value "password" and i would like to increase each of the characters in the string by 2 position.
View 5 Replies.net - Increase The Timeout Period?
Jun 4, 2009I have to increase timeout period.Following is my code.
Private Function GetConnectionInstance() As SqlConnection
Dim objConn As SqlConnection
Dim strConnection As String
strConnection = ConfigurationSettings.AppSettings("conn")
[code]....
What code i have to add in above to increase timeout period.
How To Increase Desktop Fan Speed
Nov 6, 2011I'm trying to make simple program that changes the fan speed using a Track bar. I checked on MSDN and Bing and nothing on VB.
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