An input device is any peripheral that provides input to a computer, such as mice and keyboards.

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2answers
27 views

One speaker system, multiple inputs

I have a speaker system in my living room which gets audio from aux-input (it doesn't have bluetooth) and I have multiple devices that wants to use it: my computer, laptop, phone... I thought about ...
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1answer
43 views

Using a remote control without Lirc

I own a Snapstream Firefly IR remote control with a USB receiver. Connecting the receiver and using NOOBS to perform a fresh install of Raspbian, the Raspberry Pi receives input from the remote ...
1
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1answer
22 views

GPIO input voltage from sensors - need clarification

I apologize if this has been answered, I couldn't find any definitive answer. I wanted to connect ultrasonic range sensor (based on this tutorial http://www.modmypi.com/blog/hc-sr04-ultrasonic-range-...
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1answer
53 views

Can the rpi get audio input through usb?

I currently have a rpi that gets audio through wifi streaming to deliver through a DAC hat to an audio amp+speakers. But the number of operations I have to do to stream audio through wifi (from a ...
0
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0answers
12 views

Some key combination not working with Bluetooth keyboard

When I connect keyboard through USB to my RPI3 it is working fine but when I use Bluetooth keyboard some key combination are not working e.g. alt-F1 to alt-F12. Is it know problem?
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3answers
65 views

Generating alternating current from GPIO – is it a misuse?

I've built a simple joystick for my RasPi 3 Model B. When making it, I tried to minimize the number of its GPIO pins, and ended up with a design that uses 3 pins. However, I'm afraid I'm about to put ...
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1answer
55 views

Why do I get an error message: 'Inappropriate ioctl for device' with I2C connection?

I am trying to connect a particle sensor to RPi via I2C. I have added dtparam=i2c_arm=on to the config.txt file and I have also un-blacklisted I2C. Using the Serial Python module, I have a script ...
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2answers
163 views

Disable or catch touch screen events

I have a RPi 2 set up as a kiosk with the official touch screen. On startup, the user will need to enter some input using the touch screen, but then I want to display an external web page in full ...
2
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1answer
453 views

Set up C-media USB soundcard for microphone input on Raspberry Pi 2 with Raspbian Jessie

I would like to use Amazon Alexa or Steven Hicksons Voicecommander (uses Google) on my Pi to automate some tasks by voice command, but I am having trouble getting the microphone to work in the first ...
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1answer
147 views

Audio input to Raspberry Pi

Can I use 3.5mm jack to USB converter in order to connect a headset to my Raspberry Pi 2. I want to use headset with microphone as input device. When headset is connected to 3.5 mm audio jack it can ...
0
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0answers
112 views

Raspian howto disable doubleclick drag etc

I'm using a raspberry pi with a touchscreen monitor and chrome (kiosk mode) for displaying a web application. I want to disable the doubleclick, drag support, multitouch etc. The only thing the user ...
4
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1answer
149 views

Use different sound card for microphone vs audio output

I recently bought a USB sound card to improve the audio output on my pi while continuing to use my USB microphone for audio input. The problem is that I do not know how to configure the pi to use the ...
9
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3answers
4k views

Raspberry Pi 3 audio input?

Did Raspberry Pi 3 add audio input? I'm new to RPi and interested in doing speech recognition but noticed input has been missing for previous versions. If it hasn't, what is the best way for me to go ...
1
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1answer
35 views

Python Winapi Equivalent for Raspbian? (For automatic mouse movements)

I am trying to use Python to generate automatic mouse movements and clicks etc, however on windows I did this by importing winapi. Is there a way I can do this in raspbian? Would love a response, ...
3
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2answers
173 views

Material that can be used as a switch for an LED

I am currently working on a project that turns on a simple LED. However, instead of flipping a switch, I want a material that can be touched that will act as the switch. Below is an image that is ...
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1answer
107 views

How to configure touchscreen for taking input and displaying output

I am making a control system project for factories where the motors and other appliances are supposed to be controlled via touchscreen. Is there a separate software in which the screen buttons has to ...
1
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0answers
86 views

Setup gpio 23 as shutdown & startup

Followed this tutorial & have included my device tree config below. I've configured my pull up resistor for my button to function properly once my app is running, but I'm curious; is there a way ...
8
votes
1answer
463 views

How to write device tree overlay for analog device touchscreen ad7879 i2c

I wrote a device tree overlay for driver ad7879-i2c touchscreen (compiled as module using Raspberry Pi source, files: ad7879-i2c.c, ad7879.c). Driver gets loaded but i guess parameters are not passed ...
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0answers
88 views

Adafruit Retrogame library will not send character press events

I'm trying to build a small arcade cabinet powered by the Raspberry Pi 2. I've got several arcade buttons (for ABXY, Insert Coin/Select and Start) and an 8-way joystick. I'm following the tutorial ...
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0answers
58 views

Unable to get arcade controls passed as keystrokes to PiPlay

I'm pretty new to the Raspberry Pi and I'm trying to get arcade controls I've made working with PiPlay using the Adafruit software. I've tested the controls with a little Python 3 program I wrote and ...
0
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2answers
81 views

Number of maximum inputs i can get on a Raspberry pi

I'm relatively new to the rasperry pi but not so to Python programming. So i'm mostly new to the electronics side of the story. I'm looking to build a bass midi controller. My idea was to have one ...
0
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1answer
60 views

Storing data from input pins

I have a RPi and attached to an input pin I have an ADC (MCP3002) and an op-amp (MCP601) and a piezo element connected to them. The RPi reads the input pin, gets the digital data and at the moment ...
2
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1answer
211 views

Toggle on/off with a push button (WiiMote)

I want to make a on/off signal with only a push button, actually its for my WiiMote but I don't think that that makes a difference. I want a led to turn it on and off. I was thinking about a counter ...
0
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1answer
55 views

Can I use 2 microphones with pi? & receive those two input-signals respectively?

Can I use 2 microphones with pi? & receive those two input-signals respectively?I want to receive two sound signals respectively in raspberry pi. In this case, just plug in two usb-microphones and ...
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2answers
412 views

Raspberry Pi USB microphone 1 Khz background noise interference

Using this microphone I have some severe noise in the background. The more peripherals I plug in (camera, gertboard, wi-fi adapter) the worse the noise becomes. We've tried several different power ...
0
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2answers
795 views

Grab HDMI/VGA in video feed

I have a VGA/HDMI video feed that I need to input into the Pi and stream to a server, but I don't know how to input the feed and once it is input, how to grab it and send it to ffmpeg to compress it ...
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0answers
31 views

Problem with hardware on raspberry A+ [closed]

i have a uncomond issue... first of all, is not the hardware i guess, because, with code, i can turn on/off the leds... connecting a buttons and setting inputs is when i have a trouble... for example ...
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0answers
2k views

Touchscreen with Qt QML eglfs

The goal is to run QtQuick2 Qt5 applications on the RPI 2B with USB+HDMI resistive touchscreen (7" 800x480 AR1100 http://www.adafruit.com/products/2407). Current state Visual part is fine. Touch ...
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0answers
52 views

USB soundcard putting out voltage through mic input [closed]

I don't know if it's a specific raspberry pi problem, but I'm trying to use a usb soundcard for mic input. I'm trying to use monitord to receive and decode messages used by fire departments / ...
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0answers
183 views

IRW does not show any thing

I want to use an infrared remote control. I'm using an infrared diode tsop38238. first I disabled the device tree because mode2 did not work at the beginning. After disabling I recorded my remote ...
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0answers
38 views

Fire event on HDMI connection

I want to run a script when an HDMI cable is connected, how would I do this? I found a couple links about how to do it generally in Ubuntu but nothing was working. http://askubuntu.com/questions/...
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0answers
47 views

Input device to enter a number between 0 and 99?

I would like to have some sort of input device where a user can input a number between 0 and 99. I'm envisioning something similar to a thermostat, where the user pushes the up or down arrow button ...
0
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2answers
113 views

what would be the simplest way of reading about 50+ gpio inputs?(momentary buttons)

Just need the 1/0 (pushed or not) entry. It's for a bigger projects so its gonna have a few outputs as well(not as many though).
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0answers
204 views

Real time Sound output over USB

I want to be able to record my guitar onto my Macbook pro. since my Macbook pro model doesn't have a sound input jack, i want to do it through USB using Raspberry Pi. There are many USB Audio ...
1
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0answers
208 views

Processing keystroke input on startup

I am currently working on a project where I am using a Raspberry Pi (running Raspian Wheezy) to handle authentication to a locked door. I have a usb numeric keyboard plugged into my pi, and I have ...
17
votes
2answers
33k views

USB card as my default Audio Device

I purchased a small USB sound card. My Pi recognizes the device: $ lsusb Bus 001 Device 004: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller If I run alsamixer and set the audio to ...
0
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3answers
465 views

Connecting multiple light sensors to one port

Is it possible to connect multiple light sensors to one port and similiarly control multiple motors through one port only? (I've tried searching for answers on Google, couldn't find a convincing ...
0
votes
1answer
200 views

Raspberry pi as CAMAC controller

Has anyone ever tried using raspberry pi as a digital input/output card for high frequency (more than 100 MHz) digital signal? I am thinking about building a CAMAC controller, the interface to PC (I ...
2
votes
1answer
596 views

Arcade buttons on GPIO, multiple buttons on the same ground pin

I have noticed that while hooking up arcade buttons to the GPIO set on the model b board that along with the joystick I should be able (by assigning certain GPIO pins to ground) to connect 7 other ...
4
votes
2answers
1k views

5V sensor to Raspberry PI

If I have a sensor which has 5V ouptut: I can't plug it directly to Raspberry PI, right? If so, what would I need to do so I would be able to do so? I would like to connect it via input pins.
0
votes
1answer
2k views

Reading /dev/usb/hiddev0 file generated by thermocouple board

I recently purchased a TMPSNSRD-TCPL1 thermocouple reference design from Microchip. When I plug it into the RPI with the USB cable, it generates a character device file /dev/usb/biddev0. I have been ...
34
votes
7answers
25k views

Speech processing on the Raspberry Pi

I want to do speech processing on Raspberry Pi to detect specific people (something like unique identification). I would prefer to use only the on-board processor for this, you could assume that ...
3
votes
1answer
380 views

Logitech K700 keyboard doesn't show up in /dev/input

With the Logitech K700 keyboard/mouse device plugged in to the raspberry pi, if I check /dev/input/by-path only a mouse shows up. I can still type in the terminal, but the keyboard device doesn't seem ...
0
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1answer
1k views

How do I change the default permissions for device files (e.g. a gamepad)?

I have a gamepad that I am interested in using with the Pi. When I plug it into my development laptop running Lubuntu 13.04, I get the following: 418476 crw-rw-r--+ 1 root root 13, 0 Oct 12 22:55 ...
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1answer
893 views

GPIO input shorted to ground or 3.3v

I would like to try adding buttons and maybe a optical transistor (for IR) to my Pi. I've read several places advising the use of a 1k resistor as a buffer, but is that needed or would the input pin ...
6
votes
3answers
13k views

Creating an HDMI Pass-Through Connection

I would be very interested to know if anyone on here might be able to provide some insights into the feasibility and/or proper approach to add a HDMI input to the Raspberry Pi in an effort to allow ...
1
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1answer
314 views

USB microphone locks up - how to fix?

The USB microphone occasionally gets locked up such that nothing can use it. The utility arecord describes it as follows: card 1: Device [DYNEX USB MIC Device], device 0:USB Audio [USB Audio] ...
1
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1answer
1k views

Performance problems with xboxdrv

I wanna use the RPi as an emulation machine, thanks to RetroPie this is not a big problem. To control everything I want to connect multiple Xbox 360 wireless gamepads. This is possible by using ...
4
votes
1answer
8k views

Using an Android phone or tablet as a keyboard or mouse

There are many remote apps to let Android devices control XBMC installations. Is there anything that would act as a generic keyboard or mouse, to allow an Android phone to control Raspbian, ...
1
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0answers
174 views

Documentation for SPI driver [closed]

Ive found a lot of infomation on how to enable the SPI device on my raspberry pi, and a bit on how to use certain libraries for python, but im missing something on how to actually use the SPI driver ...