Questions tagged [interface]

An interface defines clear boundaries and communication/interconnection between systems.

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2answers
130 views

Interfacing without an Interface

I have a project where I need to interface with a machine that was never built to be interfaced with. I basically want to programatically press physical buttons on the machine(critical) and also ...
0
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1answer
653 views

JESD204 ADC - fiber optic?

There's a Youtube video of a high speed ADC, using JESD204 high speed interface, interfacing with an FPGA via a fiber-optic transceiver: http://youtu.be/vkrms2udeKI Is there a commercial version of ...
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2answers
102 views

Do you really need all of the sigals for a general RS-232 port?

I know that having TX, RX, GND, RTS, CTS are good. What about all of the others? Do devices these days even make use of the other pins (DSR, RI, DCD, DTR)? Is it safe to generally leave out these pins?...
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2answers
106 views

What are the various interfaces used on memory devices

There are various external memory devices for temporary and permanent storage of data. This may have interface as simple as RD/WR signal with data-address bus and chip select with output enable. ...
2
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1answer
975 views

Barcode Scanner to Arduino/Interfacing

I've got an old barcode scanner that I've decided that I want to connect to an Arduino Uno(for the purposes of wireless transmission). After poking around I've found some information that states that ...
27
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9answers
52k views

Is there any bidirectional 5v-3.3v level shifter?

Is there any IC that interfaces any 3.3V Input/Output to 5V Output/Input? I need it primarily for an Arduino Due but if there any bidirectional IC that works like that it would be great. Some people ...
1
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1answer
426 views

Connecting a 18 gauge wire to a small housing

I'm using a sensor that has a specific connector, which outputs signal with 18-gauge wires, such as these: And I need to connect it to standard male header pins, where cables such as these would ...
3
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2answers
1k views

68 series CPU vs 80 series CPU

I'm reading a lot of LCD driver data sheets at the moment and they often have multiple interfaces (serial, 8-bit, 16-bit, etc...). They are also often also split into two sections "80 series CPU" and ...
2
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1answer
2k views

Real Time Clock DS1307 interfacing with Arduino Uno

I am currently working on an electronics project of building my own Digital wall clock. For that I tried making a RTC module with DS1307 IC. I followed the following instruction from this website. ...
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3answers
3k views

When do we use all pins in RS-232 cable?

I think the minimum for simplex communication are TX so we can transmit and the power supply pins +Vcc and GND. That is all we need. When do we need to use all 9 pins of RS-232? I think that the ...
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2answers
2k views

Interfacing an automotive pressure sensor to microcontroller circuit

This is a follow up to Measuring water pressure in a tank. I've decided to try and go a different direction so I'm asking a new question. I have an application in which I need to electronically ...
2
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1answer
2k views

How to drive a video signal (of any kind) to a CRT monitor? What's the protocol, interface, standard, convention, etc.? [closed]

Say I am going to develop a video displaying computer componenet (call it a TTL chip, GPU, whatever). There has to be some basics on how to communicate with the monitor, or how to make sure the data ...
3
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0answers
138 views

Interfacing NAND flash with PCI

This is mostly an educational endeavor. I'm looking into prototyping a NAND flash storage on an embedded platform running Linux. The ONFi standard seems convenient and promising, but I'm failing to ...
3
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2answers
889 views

MCP73871 <=> MCU interface

I am designing a small device powered by a lithium cell and I'd like to use the Microchip's MCP73871 battery charger to enable charging it from an USB port. The charger IC has three status indicator ...
0
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1answer
964 views

IC to interface between digital switches (12V) and microprocessors (3.3V)

I am working on an automotive general purpose ECU where I need to interface 12V digital inputs with a µC (3.3V). The PCB space is limited, so I am searching for a single IC as an interface between ...
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7answers
3k views

Best PC interface for simple custom hardware

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 ...
5
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2answers
1k views

Why did the datasheet mention this interface?

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 ...
5
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4answers
6k views

Which interface is better for my OLED display?

I have a 0.96 inch 128x64 Yellow-Blue OLED display module like this: OLED module and I want to use it for a project. The Driver of it is SSD1306. if you see in the datasheet of SSD1306, you will know ...
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1answer
3k views

How to reduce the data rate?(OV7670 + AL422B(FIFO) Camera Module)

I bought this module: OV7670 + AL422B(FIFO) Camera Module and I want to send the live video of the camera by this NRF24L01 but I have several questions. Is the RF module suitable(NRF24L01) for this ...
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1answer
2k views

Problem with warnings in Xilinx tools [closed]

I am interfacing a VGA monitor with Spartan 3e kit. I have a problem in the code and I'm getting many warnings, as shown below. Could anyone explain the warnings? ...
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1answer
217 views

Connect Laptop to Conference center audio system through Microphone input [closed]

I want to play a video on a conference centers audio system. I saw the conference center interface the 2 with a microphone preamplifier. The input to the conference centers audio is a standard round 3 ...
2
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1answer
1k views

Help for find Camera Datasheet or interface to st32f103

I want to use of S302's Camera(the S302 is a mobile phone with a good camera) and interface it st32f103 but, unfortunately I can't find any datasheet for it. Also, I can find the schematic of Phone ...
3
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3answers
5k views

What FPGAs support USB 3.0 super speed OOB signals? [closed]

I would like to build a USB 3.0 PHY with FPGA. I have heard that some FPGAs transcievers should support OOB that is used in USB SuperSpeed differential lines. I am also wondering if such devices exist ...
4
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5answers
7k views

Ethernet RJ45 interfacing with microcontroller

I am working on a project, (still in the nascent stage) where I have to implement a serial communication interface and an Ethernet interface. I tried to find out as much as I can and got the following ...
3
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3answers
2k views

Interfacing with USB connector in simulation

I'm prototyping a board which has a USB connector, in Spice or any other circuit simulation technology. The production board will plug into the PC and there will be some software which talks to it ...
3
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3answers
12k views

3.3V <-> 24V interface

I need to interface an ARM µC (BeagleBone Black) with a 24VDC system. 24VDC sensors and 24VDC actuators should be connected to the BeagleBone Black. I am wondered how to do this. I have found a ...
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1answer
1k views

SPI Interfacing using Serial Port or USB

I have a nRF24L01+ module from Nordic Semiconductors. It has SPI interface. My laptop has USB ports and I have a Serial Port (Using a USB-to-Serial_Port adapter). What is the best possible solution to ...
6
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1answer
6k views

How to get 1-button-press to output 1-“active”-tick according to a clock

Background: I'm a software engineer with only a little knowledge of circuits--all informal--trying to build an 8-bit sum-carry binary calculator from basic logic gates. Question: Are there well-known ...
0
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2answers
3k views

Interface/pinout of a smartphone camera module?

I am wondering where, if any, I can get information regarding interfacing/connecting with a smartphone camera module. For example, this camera module is a replacement for SGS4 and I can clearly see ...
0
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2answers
708 views

Async FIFO master / slave

Consider an asynchronous FIFO interface (e.g. FT245, FT2232H or comparable). Since there is no clock, how do you decide who deserved to be called master? Or do you call it controller instead?
0
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1answer
866 views

Interfacing TinyAVR with bluetooth and passing message

I'm looking into interfacing the TinyAVR micro controller (not sure which one will work yet) with a Bluetooth module either the CC2540 or the nRF8001. I want to have the TinyAVR micro controller use ...
5
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1answer
2k views

How exactly do USB audio interfaces interface with a computer? (specifically ADC)

I have seen the likes of M-Audio fast track and similar devices that somehow covert an analogue voltage audio signal to a digital data stream which you can connect via USB to your computer. If I open ...
2
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2answers
5k views

Different RS485 Full-Duplex with RS422 [closed]

Are RS485 Full-Duplex interface same with RS422 interface?
6
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1answer
2k views

Digital RGB interface EMI filtering

Consider the following system: where: The motherboard contains a LCD controller (SSD1963 from Solomon Systech) and other components (application processor, solenoid drivers, power supplies, etc.) ...
5
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2answers
15k views

Using standalone smartphone camera

Is there any possibility to use smartphone camera modules without their smartphone? those modules are relativity cheap and provide good results, can someone explain how to do it?
0
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1answer
94 views

what are the things to keep in mind when interfacing two digital devices?

what are the things to keep in mind when interfacing two digital devices, e.g FPGA with a dual shock controller or CPLD with a PS/2 Mouse, Microcontroller with an FPGA, FPGA with an external RAM. One ...
4
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1answer
315 views

Processor - L1 Data cache interface

Sorry if the following looks like a very specialized (or programming) question, but I'm hoping there are people on this forum who have done VHDL/Verilog modeling, and might be able to answer: I'm ...
0
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1answer
3k views

Arduino printer emulation

I'm working on a project in which an arduino should emulate a thermal printer. I'm currently using an Arduino UNO R3 board with ATmega16U2 controller to handle the communication between USB and the ...
7
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2answers
2k views

Interesting 100Mbit Ethernet failure

I have a PCB designed using both 10Mbit and 100Mbit Ethernet, I have produced 100 boards 97% of which work perfectly (both 100Mbit and 10Mbit). On 3% of my boards the 10Mbit operates all the time, but ...
1
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1answer
176 views

Connection of EZ430-RF2500 development tool with PIC18f877

I want to conect the ez430-rf2500 development tool with PIC16f877 throught uart, do I have to use a max232 chip in order to be able to communicate between those two MCUs or it can be done without it.
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1answer
1k views

Verilog interfacing with C#

Right now, I am taking a course on Verilog HDL, however, our instructor gave us a machine problem wherein we are required to implement a program using verilog while having C# as our main gui. The ...
4
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1answer
2k views

Handling the output of an AD8495

I am building a circuit with two AD8495 thermocouple amplifiers. I chose them because they are simple to get and quite cheap - there's basically no other reason. Now I need to create an interface ...
3
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2answers
1k views

Serial Port (DB9) signals

Just about every time I use a serial port for anything, I only use 3 pins of the usual 9-pin connector (DB9): Tx, Rx, and GND. And when I wire up my microcontroller projects to these ports, I just ...
0
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1answer
724 views

GPRS modem gets stuck/hangs up when “AT” is entered

I started working on a U-blox LEON-G100 gprs modem connected to the PC terminal through UART. Whatever character I enter into the terminal gets echoed back except "AT". When I enter "AT", the modem ...
3
votes
1answer
904 views

switch small DC voltage with 90v. 30hz AC signal

I need to momentarily activate an approx. 50mA @ 24V DC load, using a 90V, 30hz AC signal line. Whatever method is used, it needs to have the smallest current draw from the signal line possible. I ...
4
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1answer
886 views

Interfacing a PIC microcontroller to different logic levels

I'm planning on interfacing a PIC microcontroller to two devices which operate on two different logic levels and I'm wondering what the best way of approaching this is. I'm rather inexperienced in ...
0
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2answers
197 views

Design advice: Radar interface

I am looking for design advice with a one-off Radar interface: A RF video signal (Radar signal envelope) has to be sampled at 40 MHz X datapoints in succession triggered at 820 Hz transfer of data ...
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1answer
1k views

LF398 Sample and Hold Circuit

I'm having a problem designing a circuit to interface an LF398. On it's data sheet it says that it needs +5 and -5 volts, but I only have +5. My questions are: Can I put V+ on 5V and V- on ground ...
3
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3answers
711 views

Designing with AC'97 - why does it not have a (FIFO) buffer?

The AC'97 codec seems to dominate the world of digital audio I/O but, what is weird is that it has neither interrupts nor buffers so that it is difficult to interface with a controller, which has ...
17
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2answers
2k views

Why not use a ferrite bead around an RS-232 cable?

This is from the instruction manual of a printer: As you can see, one is not supposed to wrap the supplied bead around the serial cable. What is the reason for this?