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Questions tagged [input-device]

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

2
votes
1answer
22 views

3.5" TFT Calibration Problem

I am struggling to understand what is going on with my (knock-off) Waveshare 3.5" TFT calibration. For my application, I need to have the display and the touch screen rotated 180 degrees. Flipping ...
0
votes
0answers
14 views

Recording audio with Rasbperry Pi 3 and TEA5767

I'm trying to make an FM radio using a TEA5767 while also trying to sample 1-2 seconds of audio through the pi and was wondering how could I go about that? I'm thinking of feeding the aux out of the ...
1
vote
2answers
23 views

Detecting multiple presses of the same button

I'd like to detect multiple presses of the same button and interpret that differently, for example "tap" means to do function A and "tap-tap" means to do function B. I've been doing some googling but ...
1
vote
1answer
43 views

UART RX stops reading data after working correctly

I'm trying to read an continuous stream of data from my device (laser altimeter). The device is connected to the UART Rx pin of raspberry Pi 3B+. Everything works fine with this python code: import ...
0
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0answers
25 views

Stream all audio line input to a snapchat server

I have a Raspberry PI 3, Model B. I'm using a USB Soundcard. What I'd like to do is to stream all the audio that comes in over this sound card to a Snapcast server that then distribute it to its ...
0
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0answers
39 views

Encrypt raspberry SD card and input password without input devices

I would like to encrypt a raspberry pi zero SD or at least a partition of it. This specific raspberry pi zero is used to charge and backup an iphone once it is connected. Hence, the problem of keeping ...
0
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2answers
140 views

How to properly implement threading within a function toggled by a button [closed]

I need a little help if possible. I'm trying to make a threaded function which will make my LEDs blink randomly as long as the button is pushed. when it is released it should exit the function and ...
1
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0answers
107 views

pyusb: scanner insufficient permissions

UPDATE: I added a symbolic link to my .rules file and it is being created every time I unplug/plug the scanner. I believe my issue is more of a permissions issue with my Python code and more ...
0
votes
1answer
145 views

GPIO Voltage tolerance for input

I don't managed to find the input tolerance on I/O pins, especially on the Input pins. If I apply a voltage 3,6v (3.3v +0.3) on an input will it be dangerous or is it ok ? If somebody have a technical ...
1
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0answers
100 views

Bluetooth as a virtual audio device (input)

I am trying to setup this audio-reactive-led-strip library but with Bluetooth audio as the input. I have so far, got my LED strip to work with the standard strandtest.py and have also successfully ...
2
votes
1answer
516 views

Real time audio input for use in Python program

I am working on some audio manipulation with my RPI and have a question on how I should process the signals. Right now I have a USB adapter with an Audio In and an Audio Out. What I would like to do, ...
0
votes
1answer
144 views

I'm wanting to get user input from a screen, but I can't have any buttons

I'm developing an python3 application that only uses a handheld scanner for input. I need to prompt the user for input and want to use a nice window to do it. When I look at tkinter, it appears that ...
1
vote
1answer
506 views

Taking input from a MyoWare muscle sensor with a Raspberry Pi Zero

Our robotics class is making a robotic hand that takes input from muscle sensors. We have a Raspberry Pi Zero and are trying to take muscle activity input from a MyoWare Muscle Sensor. The program we ...
2
votes
0answers
184 views

Numpad keys don't throw KeyEvents under JavaFX on RPi3 [closed]

While programming a JavaFX application for the Raspberry Pi 3 using the official JavaFXPorts from Gluon, I encountered the following problem: Pressing the numpad keys on my keyboard doesn't give me ...
1
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0answers
241 views

How to use remote with Kodi 17.6 in ArchLinux?

I want to use all buttons of my remote control picture. Mainly the volume and the keyboard when entering text. My system is Arch with Kodi 17.6 I assumed that the following post would fix it here. I ...
3
votes
2answers
1k views

Adding microphone support to the RPi 3B

I own a Raspberry Pi 3B and want to extend the sound capabilities. So what I need is sound output for speakers and headphones via a 3.5mm phone jack. In addition to that, I want to add an internal mic ...
2
votes
1answer
57 views

Camera not in /dev/ how to create one

Does someone know if it's possible to create a new "/dev/video0" with some informations (e.g idVendor, idProduct, ...). Our problem is that when we plug in our camera, it doesn't create a "/dev/*" ...
0
votes
2answers
453 views

Mulitple Input state changes/event detection

Picture 1 shows my setup. I connected the RPi3 Input parallel to an I/O terminal. The inputs are connected to a pull down resistor setup. Pictures 2 and 3 show the setup more in detail. Program-> ...
0
votes
3answers
534 views

Coding a GUI in python and driving stepper motor by user input

I am hoping to use my Raspberry Pi 3 in a senior project for my mechancical engineering program. I want to use the pi to drive a vice like fixture to predetermined positions by connecting a stepper ...
0
votes
1answer
673 views

Kivy: config.ini [Input] section: My touchscreen settings don't apply

I am trying to use an Elo Touch monitor to work with kivy. At first i calibrated the monitor with xCalibration wich worked fine: Calibrating EVDEV driver for "EloTouchSystems,Inc Elo TouchSystems ...
0
votes
2answers
170 views

Are there any buzzers that work natively with 1 Model As?

I'm trying to follow the examples in this CanJam EduKit project -- see page 2: I'm having enormous difficulty tracking down a piezo/buzzer that I could use for that project, a buzzer that: Works "...
1
vote
4answers
675 views

Sound Processing using USB sound card and microphone

I want to use a microphone and get input from it to sample it in real time and I don't have a set idea about how to interface it to get the input. Any help will be appreciated.
1
vote
1answer
1k views

Use USB microphone as input, but keep internal sound card as output

I want to record void with an USB microphone on a Raspberry PI running Raspbian (Jessie). At the same time, I want to keep the audio output on the internal sound card. Similar questions on this site ...
1
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0answers
43 views

Workaround for unsupported keyboard

I have couple keyboards now sitting in the desk but somehow it refuse to work on raspi3 Jessie with pixel (genius kb100-holtek semiconductor and prolink usb keyboard) , both tried using powered usb ...
0
votes
1answer
1k views

Auvidea B102 and rpi3 B

Hello I want to buy the auvidea HDMI to CSI-2 bridge and I want to know if it will work with my RPI because the website is not very helpful EDIT From what I read it looks like I need to buy the b101 ...
1
vote
1answer
217 views

Connecting digital output device directly to pi's gpio

I recently purchased four of these SW-420 based vibration sensor modules, and am following along with this question: Python code for SW-420 vibration sensor. I am brand new to circuitry and want to ...
0
votes
1answer
432 views

Using user input from keyboard in UWA

I am working on an app in C# for Rpi 3 (running windows IoT Core). It will need to be able to get input from a keyboard (phisycal, not onscreen) and be able to put that input in a string so it can ...
0
votes
2answers
7k views

PyAudio does not detect my microphone connected via USB audio adapter

I am using the latest Raspbian I just downloaded this morning. I bought this USB audio adapter, https://www.sossolutions.nl/usb-audio-adapter-works-with-raspberry-pi. And then I followed tutorial ...
1
vote
1answer
2k views

Raspberry PI 3 reading input value with push button

I am new to Raspberry PI. I am following button tutorial from adafruit site. I have the made the connection needed but when I execute the code the following part is not returning values as expected ...
0
votes
0answers
60 views

USB drive not listed in /dev if it is spinned down during boot

I have a Raspberry Pi 2 with Raspbian installed. It is connected to an external USB drive with its own power supply. Usually the hard drive is detected and auto-mounted correctly. However, when my ...
6
votes
2answers
463 views

Wireless USB Touchpad not working as mouse. Why?

I have recently bought a Logitech T650 wireless USB touchpad. This touchpad works fine in the Raspbian desktop environment. But when I run some applications, this mouse doesn't work inside the ...
1
vote
1answer
29 views

What do I need exactly

I have a raspberry pi, but is there a list somewhere of all the other input/output items I need, such as a mouse etc? And can you specify if they need to be wired or not? Thanks.
0
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0answers
239 views

rpi3 read from bluetooth mate

I have a RPi3 with fresh install of Raspbian [update, upgrade, dist-upgrade, rpi-update] that I want to take input from a IMU [sparkfun 9dof] that outputs to a bluetooth mate silver. The path I took [...
1
vote
2answers
646 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 ...
1
vote
1answer
638 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 ...
2
votes
1answer
268 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-...
1
vote
1answer
2k 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 ...
1
vote
3answers
199 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 ...
0
votes
1answer
1k 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 ...
2
votes
3answers
2k 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
votes
2answers
4k 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 ...
1
vote
1answer
571 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 ...
5
votes
1answer
754 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 ...
21
votes
4answers
84k 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
vote
1answer
66 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
votes
2answers
200 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 ...
-2
votes
1answer
471 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
vote
0answers
351 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
1k 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 ...
3
votes
0answers
197 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 ...