Questions tagged [keyboard]

A text input device. Utilize this tag to ask programming questions regarding reading input from it or blinking the lights, etc.

21 questions with no upvoted or accepted answers
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(Arduino Uno reflashed as USB HID) How to send Scroll Lock key?

I am having a hard time finding documentation on how to properly use USB HID buffers, so the issue may lie there instead of with my code. To get 0x47, I used this table: https://www.usb.org/sites/...
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271 views

Making '*' key on keypad a backspace key

Using a 4x3 membrane keypad and I want to make the '*' key a backspace if the wrong number is entered. I am a newbie and having a hard time trying to figure out how to code that, any help would be ...
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46 views

Why is my keypad requiring a double-click only on the first row to register?

I have a keypad that is connected to my Arduino and each time a key is pressed, the number should be outputted to an LCD screen. The issue is that after the screen is cleared, and a new ID is being ...
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411 views

PS2 Keyboard and sending keystrokes between a Leonardo and several pro micros

I am working on a project where I am taking the the key presses from a PS/2 keyboard and passing them to several pro micro boards so I can type the same commands on multiple computers at the same time....
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484 views

Using ATiny102 as HID device(emulating mouse)

I am trying to make my own mouse/keyboard from an attiny (it doesn't have to be attiny102 as the title suggests). I have read many articles on this subject: some are using v-usb library.But I ...
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62 views

Arduino Leonardo based h keyboard

I just want to configure my laptops keyboard buttons a,s,d,f,g,h and j. I wrote this code and it works for only a but I couldn't configure other buttons. Code is: #include "Keyboard.h" const int ...
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46 views

Arduino micro window focus troubles

I'm currently attempting to use an Arduino Micro as a ducky USB for penetration testing, and currently when I attempt to open a command prompt (or any other window) the window loses focus which ...
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137 views

Atmel studio 7 with Arduino Uno: Just upgraded to Atmel studio 7 and my target platform is the Arduino Uno

Atmel studio 7 with Arduino Uno: Just upgraded to Atmel studio 7 and my target platform is the Arduino Uno. I can't get past the start procedure: Firstly on starting up I get Sequence contains no ...
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115 views

YUN as BT keyboard

Sort of a follow up to Yun as bluetooth master, but this is to get the yun to act as a slave device. Specifically, I want it to be a BT keyboard. I could probably do it on my own, but I need to find ...
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894 views

EB - 4x4 Soft Keypad Driver Diagram from Makerstudio needed

I have found this interesting device wile looking for a cheap Arduino. It's a "driver" that converts a 4x4 Keyboard 8-PIN (8-IO) to a 4-Pin (2-IO) Device I would like to know if is Achieved by a ...
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647 views

Feedback Request: HID USB to Bluetooth Relay

Bluetooth Relay Project: Develop a USB to bluetooth adapter for my mechanical keyboard. Using a USB host shield, have an Arduino Pro Mini read keyboard usb commands and repeat them over bluetooth. ...
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Arduino emulating a keyboard that has a demultiplexer

I have a old typewriter which I want to automate with an Arduino. The way I am trying to do it is to replace its keyboard with the Arduino and make the Arduino emulate the keyboard i/o. The keyboard ...
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22 views

how does someone press and hold a key using keyboard functions?

I have a teensy, setup as a keyboard. The data sends out fine, but the key presses need to be a longer duration. I tried adding a delay, after Keyboard.print("w"); but there was no change in ...
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74 views

Controlling keyboard LEDs with USB Host Shield

I've got a USB keyboard connected to my Arduino Uno with a USB Host Shield. I'm reading keystrokes using this example from the USB Host Shield library. I need to toggle the LEDs in the keyboard (that ...
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213 views

Convert normal keyboard into Bluetooth Keyboard

I am very new to the Arduino world, I am trying to convert my wired keyboard into a bluetooth keyboard. I have a few layman questions: Is it possible to add an audio jack adapter(like PS4 joystick ...
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226 views

Fio Keyboard program out of control, how to reset?

My question involves a Sparkfun Fio v3, similar to the Arduino Fio. I had a student who was testing his understanding of the Keyboard library. He uploaded a sketch that continuously sends output, ...
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191 views

4x4 Keypad Interface issues

I have not used arduino until now. I thought of interfacing my 4x4 keypad. But when I press keys 1, 4, 7 and *, key values A, B, C and D are sent out to serial terminal respectively. All other keys ...
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1answer
620 views

Bluesmirf Mate Silver (RN-42) enter command mode when in HID mode

I am having problems getting the Bluesmirf Mate Silver (RN-42) into command mode once I have switched to HID mode. I have bought a second new Bluesmirf Mate Silver to confirm my issue. I soldered the ...
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31 views

weird output from keyboard program

I am trying to write a keyboard (Key-glove) program. There are 4 buttons, and inputs should type specific keys. when the keyboard is active, I get output, but not what I am expecting for output. I get ...
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229 views

HID-Project problems with keycode enums

I'm having some trouble with the HID-Project using my arduino micro as a keyboard. I'm using the BootKeyboard API, I want to be able to store and recall keycodes from EEPROM eventually, but as it ...
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1answer
722 views

Keyboard emulation

I am interested in development of a small box that will have the following functionality: Will connect via USB to a keyboard Will contain a keyboard emulator to allow transfer of keystrokes to a host ...