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

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How to configure DCMI interface with libopencm3

I'm working on a project where I have to configure a video interface, I tried to install dcmi drivers and drivers stm32f4xx.h. But when I add GPIO & RCC for configuration, I obtain fails of ...
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1answer
29 views

Save data displayed on a simple numerical LCD [closed]

I am looking for a way to save data displayed on a simple seven segment lcd screen like the one on good old calculators. I would ideally like to save it periodically to a computer or arduino or usb ...
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0answers
6 views

Alternatives to the V35 interface [migrated]

I am trying to find an alternative for the legacy cables I am using. I currently have a Cisco router connected to a DL 600 E (Multiplexer). On the Cisco router there is a serial port. On the ...
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56 views

STM32F4 project [closed]

I have a projet where I must program STM32F4 to receive video data and capture data when I press on a button. I work on STM32F4 discovery (with STM32F407) with libopencm3 library. I never worked with ...
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2answers
86 views

How to connect multiple micro-controllers' USB ports on the same PCB?

I'm designing a PCB with 3 Atmel ATmega16U4-AU micro-controllers on it. I will be programming them through SPI. Therefore, I will not be using D+ and D- ports on the USB interface. Then how do I ...
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17 views

LCD interface and contrast adjustment scheme

I am referring below graphical LCD. But since it's datasheet is not thorough, I have few queries in interfacing. Interfacing: VDD,LEDA is 5V and VSS is Ground. How Vo,Vout connection is to ...
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1answer
74 views

How do I specify a microcontroller as RAM? [closed]

Recently I've been thinking of creating a basic game console using either SPI or Parallel interfaces (I would also like to know which would be the best and easiest for this situation). Using an ...
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39 views

high-speed interface for robotics vision system cameras [closed]

I need to design a high-speed, high-resolution camera for a robotics vision system, and need to choose the appropriate interface and cable standard between camera and PC. Typically 4 cameras will be ...
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1answer
48 views

Could an FPGA be connected via DMI to a processor, if so how would this be done? [closed]

Can an FPGA be connected to a processor via Direct Media Interface (DMI), without a dedicated Platform Controller Hub (PCH)? The FPGA would serve as the south bridge/ PCH. Along the lines of ...
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1answer
46 views

interface two wire pH sensor with arduino

I have purchased this pH/EC sensor from https://www.cooking-hacks.com/ph-sensor however it does not have a BNC connector and just two wires, black and read. How could i interface this to an Arduino? ...
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1answer
48 views

PCB mount socket for 1mm diameter pin

I have a module that I want to be able to plug into a custom PCB (i.e. not solder directly). The pins of the module are 1mm diameter and would be inserted perpendicular to the custom PCB. What sort of ...
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2answers
99 views

Microcontroller Interface with Modbus Serial [closed]

I'm a beginner and I'm trying to acquire data from a microcontroller with Modbus serial protocol in order to create an interface with LabVIEW. I'm using a Prolific Technology USB-RS232 converter and ...
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1answer
56 views

SD Card Reader with LPC43xx

I am trying to implement an sd card reader on lpc43xx devices. For this I can make use of the LPCopen examples that use the ROM based drivers. However for some reason the ROM based driver example ...
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2answers
76 views

Generic question about interfacing a microcontroller with a device: when is the current limit a problem?

I have an Arduino Board, to be precise many models, but let say I want to interface a ATmega328p with another integrated circuit (all is running at 3.3 V). In this case I want to connect Arduino with ...
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2answers
41 views

Guitar to Hammond tone wheel control interface

I'm new to electronics, but have been working on tube amps for a long time. I'm attempting to make a controll interface that allows me to control a Hammond tone wheel organ from guitar.Tonewheels are ...
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3answers
73 views

How to interface a SPDT switch with Mac OS X

Before I get started, I am a software developer and I have extremely limited knowledge of circuitry, so please be gentle. In it's most basic form, I guess my question is, how can I wire up a SPDT ...
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1answer
47 views

PSEN Pin when interfacing external memory in Harvard Architecture 8051

I am a computer engineering student, we have exam soon and I am completely new to this stuff . I have thoroughly searched the Internet but couldn't find any document on how to interface external ...
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1answer
46 views

Attempting to connect a simple memory chip to a computer

not too long ago a friend jokingly bought me this simple toy which basically consists of a "push-me button" that creates a laughter sound when pushed. How the hardware looks I pulled the speaker out ...
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46 views

Protocol used by tankless water heater remote control

I'm using an EcoSmart ECO 11 electric tankless water heater in a hydronic system. This heater has a "Remote Control" port on the side. The port is an RJ-11 jack with 4 wires. I want to interface ...
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0answers
107 views

How to interface with the Apple Watch for the purpose of accessing its internal memory? [closed]

Unlike other apple products which can be directly connected to a PC via USB, the Apple Watch is completely wireless from the point it exits the factory, as far as I am aware. Aside from a 6-pin ...
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1answer
95 views

TFT LCD interface

I am little confused in basic understanding of LCD interface. Many times datasheet suggest 8/16 bits MPU interfacing. Here, for interface we assign GPIO's of microcontroller to respective data pins ...
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1answer
28 views

Which instrument for arbitrary signal commutation (matrix)

I would like to test a bunch of sensors. Each sensor has a DB15 connector with mixed digital and analog signals (bw ~5MHz, Z ~120R). I am looking for an instrument where I can control which couple ...
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1answer
38 views

memory interfacing with banks [closed]

In the concept of memory interfacing (cpu<=>memory), it is desirable to have two banks for odd and even addresses. The reason goes back to the history when manufacturers increased data bus width ...
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1answer
133 views

Combining speaker outputs to one secondary amplifier

I have a tricky question, I hope you are able to help. I have had a search through this site and others and found part solutions to my questions. The issue: I have a Denon 5.1 av receiver and have ...
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1answer
75 views

Sensor has interrupt pins. What can I connect them to?

I have a BMI055 gyroscope and accelerometer. on the sheet there is a section dedicated to the 4 interrupt pins (16,1,12,13 respective to 1,2,3, and 4). This section starts on page 30. and it seems ...
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2answers
76 views

Interface for Induction Motor

I'm trying to make a board for controlling a reversible single phase induction motor. The board simply needs to be able to turn on/off the motor and control the direction. My understanding is that ...
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2answers
78 views

Best Practice for driving a valve

For driving a valve based on the datasheet we should limit the max current that flow into the solenoid. If we have an AC valve we should take the inrush current at the start-up into account and ...
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0answers
57 views

LVCMOS33 to LVCMOS25 using a diode and pull up resistor

I am trying to interface LVCMOS33 to LVCMOS25 without using a supply voltage of 2.5V. I was thinking of using a schottky diode and a pull up resistor. I am trying to do this to two signals; ...
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1answer
42 views

Interfacing with a S6B0741

I am using a LPC4300 board to interface with a graphical LCD, a S6B0741. I have been trying to get it initialized, but I am not sure if I am sending the commands the correct way. The code I have ...
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2answers
492 views

Interfacing an inductive proximity sensor with a Microcontroller using a sort of PNP-NPN transistors combination

I'm trying to repair an old circuit based on the Micro-controller S87C751 interfaced with an inductive proximity sensor similar to one already posted here The sensor is powered +24V. I followed ...
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2answers
145 views

How do I connect this microphone to an ADC?

I have this component http://docs-europe.electrocomponents.com/webdocs/0f2a/0900766b80f2a57c.pdf. It is not clear to me what type of circuit I need to use to amplify the signal from this microphone ...
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1answer
293 views

interfaciing with a 5mp csi camera

I'm trying to interface an intel edison board with a 5mp mipi camera (https://www.sparkfun.com/products/13249) The camera uses an OV5640 imaging sensor, and is used with a pcduino v3. It interfaces ...
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102 views

Reading a 32bit IC counter on from a computer

I am working on a design to count the mechanical cycles of a piece of equipment. It has to be a 32 bit counter and be robust. I have a working prototype using a sn74lv8154 IC, configured as 32bit. ...
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1answer
65 views

How do I learn to design a 50Ω coaxial interconnection/interface? [closed]

I've designed an electronic load for testing power supplies (circuit and photo in this post: Designing a *linear* MOSFET driver stage). The load can be controlled (programmed) using an arbitrary ...
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1answer
623 views

Embedded C programming to interface ultrasonic sensor to 89s51 microcontroller

I am trying to interface an ultrasonic sensor HC-SR04 to a 51 family microcontroller like 89s51. After learning about how ultrasonic sensor works I wrote a program as per my knowledge about ultrasonic ...
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1answer
221 views

Using the right pins for keypad

I am using msp430g2553 microcontroller and a 4x4 HC543 keypad. I am using Energia IDE. I have connected the keypad from pin 2 through 9. My code is as follows: ...
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1answer
133 views

How to design GUI for my embedded design [closed]

I have designed my embedded software and it is working fine. I was thinking about making good GUI so that it is easy for others to interface with my software.
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1answer
30 views

Touch sense controller interface

I am trying to implement a system where I have to use Touch Sense Controller(TSC) with LPC2138 controller, through SPI interface. As per my consideration, MOSI line of LPC2138 --> Din of TSC MISO ...
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1answer
84 views

Interfacing switch and LED

I am trying to write a program in which I am interfacing a switch and a LED. I want a program so that when I press the switch the LED turns on and when I press again that led turns off. Right now I ...
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1answer
163 views

How can I drive this laptop screen?

How can I drive this screen? It's a 1920x1200 display from an old Dell Inspiron 6000 which is now dead, but the screen is great and I want to use it in a project. Is that a standard (either physical ...
0
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1answer
126 views

How to communicate with Keithley devices on linux (without NI VISA)?

Keithley devices let you read/write commands/data over GPIB (examples). LabView has dedicated blocks (VIs) for this purpose, and other wrappers such as PyVISA use the commercial VISA drivers by NI. ...
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1answer
82 views

Interfacing ADC with MCU using SCI

I am trying to interface a Texas Instruments (TI) 16-bit ADC to a TI Piccolo microcontroller (MCU) via a serial communication interface (SCI). The ADC block diagram shows 3 connections for this; a ...
2
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1answer
228 views

How does this Audio ADC know which rate to sample the audio at

The part under question is PCM1808. This device needs an external system clock on the SCKI pin. From the master device it shall need LRCK, BCK & DOUT. The LRCK chooses the left/right channels. BCK ...
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1answer
111 views

Where can I find correct documentation of old floppy drive formats?

I have an old drum machine with an ancient proprietary 3.5" SONY floppy disk drive with no information on the device itself that I have seen. The performance is spotty and it's very picky about disks. ...
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0answers
70 views

Interfacing Constant Current to a Microcontroller

With reference to the circuit below, How can I control the SET from a Microcontroller? It really needs a variable resistor attached. I've looked at digital POT's although it would need to be ...
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2answers
95 views

Interfacing with a graphic lcd

I am ordering a graphic lcd NHD‐12864AZ‐FL‐YBW and most of the interface code seems pretty simple. On the datasheet it has the following list of commands I don't understand what is put in the write ...
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1answer
115 views

Acs712 current sensor ic interfacing with ade7858(energy metering ic)

I am trying to interface Acs712 current sensor IC with an energy metering Ic(Ade7858),there are two problems am currently facing. 1) The energy metering Ic takes in bipolar input (± 0.5 V) which is ...
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2answers
2k views

LCD 16 x 2 1602A Interfacing

I have bought a 16 x 2 LCD which I want to interface to a ATMEGA 324 microcontroller. The problem is that the vendor didn't give me a good enough datasheet. It does not contain any information ...
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0answers
35 views

Does Core Debugging Interface reveal state of Context Registers?

I need to know whether the Context Register states of the CPU are relayed to a hardware component called the Core Debugging Interface, and if so, where I can find any useful information on this ...
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2answers
190 views

SDXC Card Reader with LPC1822

in my application I have an SD Card reader using the NXP LPC1822 microcontroller. It works very good with all SD- and SDHC-Cards I've tested so far. Only thing that does not work is SDXC. I already ...