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Questions tagged [parallel-port]

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Good morning everyone, I received help from several members of this page regarding my goal of adding a USB-C connector to a tablet that already has a micro USB connector for charging. After ...
condor12's user avatar
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I am searching for an explanation for the coding idiom for changing TFT display resolution that is used in the PORT from mcufriend’s Arduino code. ...
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Where can I get the pinout for the P5V04A SUNNY camera 24 pin flex connector used in the raspberry camera module v1.3?? (the pinout of the tiny yellow part on the camera) I need to know the function ...
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I'm trying to understand how to interface TFT driver ILI9486. I'm doing this because I want to control TFT display with PIC microcontroller and not AVR (for which libraries already exist). I own the ...
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I am trying to program an interface between my 2x16 LCD and my MSP430FR6989. The LCD communicates parallelly with the MPU (E RS EW D7 -- D0), and it uses an ST7066U controller IC. from reading the ...
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I need to control two devices with the PC's parallel port simultaneously. To protect the port and provide some sort of a buffering, I thought to use an optocouplers and two ULN2003 Darlington arrays. ...
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I'm using an onboard parallel port on an otherwise disused laptop to try and sample the MIDI output of a very old keyboard. MIDI is a serial link at fixed 32 kbit/s, and so far i've managed to connect ...
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I tried to make a simple NPN transistor inverter so that I can use the strobe line of the parallel port to store data in two separate flip-flop IC's. (74HC174 and 74HC574) The IC that data will be ...
Mike -- No longer here's user avatar
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I've been searching for technical information to explain how this works but can't find any info, pinouts, technical reference of any form. I want to program a parallel port to control a USB device ...
Duke Dougal's user avatar
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Here I go again testing more circuits on two computers with each reporting completely different data yet I feed the same data in. Now this time, the data coming back is all logic highs on my laptop ...
Mike -- No longer here's user avatar
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I'm trying to figure out the meanings of all the parallel port IO addresses on a PC because I have custom hardware I use with it and I figure if I change a value then my hardware will work. So far, ...
Mike -- No longer here's user avatar
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This is my programmer circuit: I decided to try the HCT version of the nor gate (74HCT02) and I also decided to omit the capacitor to the reset. I selected 10K for all resistors except for reset, I ...
Mike -- No longer here's user avatar
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I'm making a circuit to program the AT89S52 microcontroller in a serial fashion as follows: Call me paranoid but this time I'm using resistors on all outputs to the micro as well as RC networks on the ...
Mike -- No longer here's user avatar
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I'm paranoid right now because I made another circuit meant for the parallel port of the PC. While all my previous experiments involving the port were successful (except for one experiment I made a ...
Mike -- No longer here's user avatar
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UPDATE I took a suggestion of disconnecting my external monitor from my laptop and the results were the same. What I did notice however is that the AT89S52 chip always reports the correct signature ...
Mike -- No longer here's user avatar
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I attempted to make myself a 2-in-1 programmer so I can program both AT89Cx051 and AT89S52 on the same board without having to do so much plugging/unplugging of the port. The main issue is the strobe ...
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cable and switch http://ibb.co/dDctkk http://ibb.co/dDOAWQ) Quick preface, I have nothing but rudimentary EE education, only what I may call "common sense" sort of knowledge. I have 3x serial (or ...
Ben's user avatar
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I'd like to control 3 status LEDs with two different PCs: an OrangePI-PC, using the GPIO pins as power source (same pinout of a RPi2); regular desktop PC, using the parallel port as power source. Both ...
eadmaster's user avatar
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So I'm using port talk (http://retired.beyondlogic.org/porttalk/porttalk.htm) on windows 7 to really simply set/unset pins on a parallel port via some c code. I've plugged in an oscilloscope to ...
Phildo's user avatar
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I've built a circuit on a breadboard comprising a PIC18 reading from and writing to a HM6116 SRAM through a pair of 74HC595 SIPOs and a pair of 74HC165 PISOs. As you might expect, there are a bunch of ...
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This question relates mainly to the means of operating a relay module using a PC parallel port. I have outlined the application that this is to be used with but that is provided for background so ...
Gökhan Keskin's user avatar
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As a software developer the concept of parallel processing usually meant faster processing because it meant things don't have to wait for the other processes to finish if they don't need to. So how ...
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I am trying to interface an adc with an fpga, but I am running out of pins. I wanted to know if I use an ADC with a sampling rate same as the parallel one but with a serial interface , will I be ...
surya deopa's user avatar
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I'm trying to connect the AR sensor module (AR0331) with the IMX6 processor and the problem is the camera uses a HiSPI & parallel line. Similarly, there is MI-PI (CSI) and Parallel line in the ...
TSDCR's user avatar
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In my project, I need to store (and read) large amount of data ( >128 Mbits). Of course, I need external flash memory (I think SD card won't work because speed is an issue in my project). So I plan ...
Max's user avatar
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As far as my understanding goes, parallel data connections are faster than serial at the same frequency. However, when you increase the frequency in parallel you start getting bits 'cross-talking' and ...
user1480135's user avatar
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I could not find the step by step guide of some kind to accomplish what I am planning to do. I have two devices that I want to connect to PC (windows). Right now, both devices write their output ...
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Im facing some issues to figure out sequence of my bipolar(specifically) and unipolar stepper motor. However , I've managed to get Dual H Bridge but couldn't find out the example/documentation for the ...
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Is it possible to use a parallel port (a real one, not an USB converter) as a TTL serial port equivalent, for a maximum speed of 115200 baud ? I'd like to talk to a router's serial port but I don't ...
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This is my first Arduino project and while I remember a (tiny) bit of electronics from school I'm struggling to get this working - in fact I've just fried a parallel port PCI card! I'm looking to ...
baseten's user avatar
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I'm having a little difficulty to drive this kind of motors using parallel port. Have googled loads of tutorials but unfortunately couldn't found any color codes or types of motors I have. I cannot ...
user3154926's user avatar
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I want to build something like UM232H-B Breakout Module. This configuration uses an FT232H, to convert usb to serial/parallel. I don't know whether it works with FPGA parallel port programming cable ...
SMA.D's user avatar
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I'm currenty working on a 4 layer PCB that requires two parallel memories.My question regards the distribution of the traces in the PCB. Is it better to trace them like a bus: or is it better to ...
Juana De La Cuesta's user avatar
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For educational purposes, our professors have DB25 ports on our laboratory rooms, and of course we can only simulate our assembly codes in there Our professor said that it might not be possible to ...
Imaginary's user avatar
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simulate this circuit – Schematic created using CircuitLab Parallel port ideally gives TTL logic 0(low) and 5V (high). But my port gives 3.3V high. I have designed my controlcircuit assuming ...
baalkikhaal's user avatar
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So I was doing a bit of research on the AVR controllers and came across this schematic for programming the chips. After doing research on the 74 LS 254, I realized that either this design is overkill ...
sherrellbc's user avatar
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What interface of your PC do you use in order to connect to simple custom hardware? The most commonly used interface was RS232 some while ago and today is probably USB, but wouldn't it be simpler for ...
Penguin Nurse's user avatar
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I have a ST32F103RET6 MCU. I got the datasheet (and refrence manual). When I read the datasheet (and refrence manual), I found this section: Now I have several questions about it: Why does the ...
Roh's user avatar
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I have put together the circuit below. If the switch is closed the LED should turn off and the parallel port should read the change. The status of the port can be read. But every time the circuit is ...
dosas's user avatar
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At my university we have to do some project using parallel port (I know ridiculously old port). We bought a USB to Parallel Printer cable used to connect old parallel printers and the device is an ...
Andres's user avatar
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I have connected pin 2 to pin 3, pin 4 to pin 5, and pin 6 to pin 20. Can someone please tell me if this is the correct wiring for loopback testing a parallel port? Ia am using BurnInTest 7.1 Pro by ...
Samir's user avatar
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Before anyone downvotes the question for my recklessness: Disclaimer: I acknowledge that it is not advisable to make the connections mentioned in the question. This is just a hobby experiment where I ...
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I have USB to 25pin Logilink cable. I connect it with computer with Linux and get a port in /dev/usb/lp0. When I connect LED with pin 1 and 25 as +/- of LED it lights. Now I move + pin of LED to pin2 (...
user17651's user avatar
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3 answers
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If I want to use a parallel port to control this 8 channel relay instead of Arduino, do I need to make any modifications?
user10768's user avatar
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