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This is the basic interface I used as part of my Computerized Room project. This is the parallel interface only. The 8 bit input card can be found, along with the rest of the project, at Computerize Your Room/House. This interface, as well as the other two interfaces, came from the book "The Robot Builders Bonanza", by Gordan McComb. This interface is also useful for controlling small robots, etc. It is cheap and fairly easy to build, although you should not attempt this project unless you have prior experience with electronics. You probably won't damage anything if you hook it up wrong, but there is always a chance (some parallel ports are better protected then others). If possible, test the project on someone else's, or a school computer :-) |
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Parallel Port Pin Assignments |
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| I have some difficulties for vb6 program for parallel port communication. can any one help me by send me the complete code + dll files. thankx | ||
| For effective and simple control of parallel port, check out LibertyBASIC. Port driver for XP and above is included with distribution and there is an excellent and supportive user forum with a hardware interfacing thread. http://www.libertybasic.com | ||
| I'm exploring your site; it has great info. I built a small PCB with a ULN2003 chip driving reed relays to control my room lighting (dimmer) using the parallel port on my PC. It's simple and works quite well. I'd now like to add the ability to read the level of the dimmer and send this data to the PC. The dimmer has 4 LED's which I believe are 9VAC and are either on or off. I need to translate this to something that could be read by the parallel port and sent to an app on the PC. Any ideas? | ||
| Verhy informative, Well done! | ||
| is it passable to do this same thing using the usb port instead of the Parallel Port I have been looking all over the internet trying to find a schematic diagram on this if you have any information please let me know thank you Jeremy | ||
| You can download this dll file ( Inpout32.dll ) from http://logix4u.net/ and control your Parallel port even under Windows XP. Note: In Windows 2000 and XP and later versions of windows, you can NOT use the PPort directly . You must use a kernel mode device driver to that.......Actually inpout32.dll does that for you easily. | ||
| is it possible to use this interface to conect 2 computers for use with qbasic so that one way comuncation is possable | ||
| Dear Sir, by using any input, like 5v or getting 0v vich pins i can use to detect whether hardware is connected or not | ||
| I am very happy with your vb parallel port programming.it helped me a lot. i have a doubt? if we want to input data through status port by shorting it and ground how we can detect at the time of running? eg: i runned my program then when i set 88 form colour shoul be red,and if the value is 104 the form colour should be blue without exiting the program.what is the code for that? i tried like this, if vbinp(889)=88 then form1.backcolor=vbred elseif vbinp(889)=104 then form1.backcolor=vbblue end if this is working when it wrote under an event like click or keypress ect..... but i want to check continously without changing any event plz help me........ | ||
| Sir pls give me a kernel driver for WindowsXP, im trying to access parallel port interfacing with Assembly Language Program using A86 assembler.. pls help.. im searching for so long.. (Editor's notes: Search the forum.) |
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| sir, i want to access data coming from ADC by PC parallel port & store it in database(sql) . i want to access the parallel port by java(Net beans) & at windows xp. if u help me at the code portion of interfacing with parallel port i would be greatful to u. plz help & mail me sir.......... thanks | ||
| i AM FOUND PRPLEM FOR INSERT PULSE BY SENSOR TO ADRESS 379 ,I WANT COMMAND FOR BREAK INFINITY LOOP ,FOR READ ONES AND ZEROS FOR THAT PULSES. TANKS Private Sub Command1_Click() Dim ones As Integer, zeros As Integer, delay As Long, COUNT As VARIANT Text2.Text = Inp(Val("&H" + Text1.Text)) DO WHILE COUNT=1 If (Str(Inp(Val("&H" + Text1.Text))) = 119) Then ones = ones + 1 Else zeros = zeros + 1 End If COUNT=1 LOOP Text4.Text = ones Text5.Text = zeros End Sub Private Sub Command2_Click() Out Val("&H" + Text1.Text), Val(Text2.Text) End Sub | ||
| I have seen easy tutorial to interface LCD to parallel port using VB6. http://lcdinterfacing.googlepages.com/ | ||
| Can you please describe me about parallel port data recieving and sending pins .... and how can i connect any thing with my computer using parallel ports .... and also tell me what i do if i want any wireless connection of any component (for e.g. a remote control car) with my computer... so that i can control that car via keyboard.. i will be thankful to u if u answer my these all questions | ||
| sir, i want to access data coming from ADC by PC parallel port & store it in database(sql) . i want to access the parallel port by java(Net beans) & at windows xp. if u help me at the code portion of interfacing with parallel port i would be greatful to u. plz help & mail me sir.......... thanks. | ||
| To day I visit your site at first time and there i find what I need so easy (I whose tray one year ) THANK YOU FOR THAT | ||
| sir please help me on how to control a basketball score board using printer port sir please reply tank you oh | ||
| Dear sir i want to make a toy car that can be controlled using the computer. for example direction keys for navigation and cameras for viewing | ||
| i have written a code for extracting desired bit pattern from the lpt port. The program run fine from within the Borland c compiler but when we run the program from its exe file we are not gettin the output. We have used outportb(0x378H,data) command. please suggest. | ||
| sir can you help me how to control an score board using printer port? | ||
| Dear Sir, I just wanted to drop a note to thank you for inspiring me to delve into the world of "real world control with a pc". I built the parallel port interface (not a single problem)and my first experiment was to build an infared through beam alarm. I then used it to control a 2x40 LCD display. Being just a hobbyist and very new to electronics, I greatly appreciate all the hard work it takes from folks like you to share thier ideas with us. All of my training has come from internet searches and a ton of reading. For the moment I have been writing all the source code in QB but I've begun to learn Euphoria and C++. Who knows what the future brings? Again Thank You for an excellent site. John | ||
| where is the c++ program?? | ||
| hello sir, i just want to ask if it is safe to use windows xp for interfacing printer port to our project via visual basic 6.0? because our professor told us that windows xp sends unwanted signals that might interfere with the process or our project... what do you think? is there any way to disable this unwanted signals? please e-mail me sir for help.. thanks! | ||
| Sir pls tell me what exactly the function of parallel port interface in the operation of 8051 microcontrollers pls reply soon thanx | ||
| Pls send me a java code to output a signal or pluse through a parallel port whhn a specialized java me3thod is called | ||
| sir can you help me to install an electronic coin slot to a computer and control it or using its functions using visual basic program.i need help pls. | ||
| sir i want to make a toy car that can be controlled using the computer. for example direction keys for navigation etc. also add a camera for viewing | ||
| i think it is a bit crappy but otherwise good =] | ||
| Dear sir, please help me sir I asking you how can attach led , fan and etc devices and what is programing in 'c' language for controlled . for example LED blinking and etc . and what circuits | ||
| krapy | ||
| i want to control camera out put and movement by motors through vb6 | ||
| C#.NET http://www.dreamincode.net/forums/showtopic27085.htm | ||
| Dear sir, please help me sir I asking you how can attach led , fan and etc devices and what is programing in 'c' language for controlled . for example LED blinking and etc . and what circuits | ||
| im using java please help me to acess the printer port for testing a modem cable if it is working or not... please, i need your help i don't know how to use it and i dont know the codes.. | ||
| sir we have a project, there is a controller connected to printer port where the program commands the controller to on/off.. HOw is that???please help...please send it to my email | ||
| pls help me!! we have a project using a parallel port we must interface it with the computer but i dont know what kind of circuit diagram should i use. on our proj we have a design and L.E.D. the computer act as a switch to the led. | ||
| can i have at least 5 application of interfacing parallel port? please i really need it thanks (Editor's notes: Do your own homework.) |
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| plz give me parallel port interface in vb.we know about dll file requirement but how to use it in vb6. detail steps | ||
| Dear Sir can you please send me the proper circiut diagram for parellel port programming circuit for controller . regards:- sachin | ||
| Sir, I am trying to built a simple card reader. I would be having cards with holes and with the help of photo transistors I can read the card. I would like to connect the output of the photo transistors to parallel port. Port would be read by the computer and the data (for ie 10110) would be stored in text file with time stamp. Please help me out with this by shoing me the schemetic | ||
| I want to link printer port of Desk Top Computer through Vizard 3.0. Is it possible? | ||
| i need to help how to programmable parallel port to send and recive data in c#.net or ther lang. i need program to control device | ||
| Can you give me a good site where to find parallel port programming using java language.. | ||
| sir want to knoe from you that what value of current and voltage is required so that we can give input without damaging port or mother board and computer can easily detect the voltage. hope for your reply thanking you | ||
| sir i want to know whether we can do usb interface using 'c' or not. | ||
| Can someone give me a program how to read the signal coming from a device | ||
| I want to study my project in parallel port interface subject or in robotic systems. | ||
| plz give me parallel port interface in vb. (Editor's notes: Search the site.) |
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| can any of u guys provide me the information about parallel port interfacing. I wanna connect a toy car using C-lang ... i desperately need it. plz give me source coding also. i'll be very grateful to u. Saqi here | ||
| Sir, I am trying to built a simple card reader. I would be having cards with holes and with the help of photo transistors I can read the card. I would like to connect the output of the photo transistors to parallel port. Port would be read by the computer and the data (for eg 10110) would be stored in text file with time stamp. Please help me out with this | ||
| its good but i need more detail about this project | ||
| very good | ||
| hey guys i m working on controlling the trafic segnals my aim is to use only minimum ic's by which i can develop it if any one have any idea or any circut diagram even related to the idea of traffic controlling then do tell me or mail me..thankuuu... | ||
| plz send me brief description about parallel port pins | ||
| Plzz send me codes in vb to interface parallel port with RF model | ||
| please answer me ur program did not work will with me | ||
| hi i want to make a project to control the house with the computer this is quite similler so i want u to send me the circuit and the program its really urgent thank u | ||
| please send me the code in vb to interface parallalport and serial port | ||
| hey!!!!!!!!!!! I am making project on the robot arm motion control through PC if any one have the any Idea please tell immediately | ||
| i m working on a project in which i have to control a toy car from computer;plz send me the circuit diagram of parallel port interfacing, | ||
| my project is to control the devices connected to the prallel port such as toy car and any other device.project is in java.please give the advice about this and if the source code is avilable then send to me.or give the more details about my project very fastly | ||
| I want to send time information from pc to 74ls447. So, i like to know how to write a program using assembly language. | ||
| please send me i am very desperately in search for it,NOTE i am not great in vb so a compleate code req. thank you. | ||
| need source code to connect adc0808 with pc in vb or c or c++ . thank you | ||
| i need source code to connect adc0808 with pc in vb or c or c++ . thank you | ||
| your project is very complexy. but undestanding so so . bye!!! | ||
| i like so much your project but I will never use this:D thanks | ||
| firstly try tolearning the programation very well specialyC++ | ||
| Thank a lot bro! really need your vb codes for our project ^^, | ||
| Please sir, iam good in designing circuits but my problem is that i don't know how to use a computer system to control external circuits.I need your help by sending guids on how to develop programs and circuits to be controlled by serial ports.I will be very grateful if you could help me.Eliazar from Nigeria. | ||
| I ant to acquire data from an ADC to PC through parallel port .
My ADC is ADC 0808.
Are ther any risks in doing thatas I am doing it for th first time.
Please help . Its urgent ! (Editor's notes: Your best bet is to ask technical questions in the forum instead of here.) |
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