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Questions tagged [keyboard]

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

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2answers
33 views

Matrix keyboard and 7segment display countdown combination

I'm working on an escape room for my university with an Arduino Mega. The last part consists of a 7segment display representing a time countdown, and the participants have to introduce the correct ...
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1answer
42 views

Digispark ATtiny 85 - not recognised as HID device

I am trying to create auto-username-writer with Digispark ATtiny 85. I have a pretty simple sketch: #include <DigiKeyboard.h> void setup() { } void loop() { DigiKeyboard....
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2answers
33 views

Emit region-neutral keyboard signals

The Keyboard API allows the Arduino boards such as the Micro or Leonardo to emit USB signals mimicking a physical keyboard. However, the signal seems to transmit key strokes and not characters which ...
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2answers
46 views

Arduino Micro draws too much power from iPhone. How can I change that?

I'm building a USB keyboard that has two buttons - space and enter. The plan is to use this USB keyboard (with an Apple Lightning connector to USB) with the built in iOS switch control. I bought the ...
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0answers
86 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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1answer
25 views

Arduino Leonardo keyboard.print keeps printing equal sign

I am currently working on a DIY controller for Train Sim World. I am relatively new to the Arduino and the C programming language. My code is structured to look for button presses or PS2 joystick ...
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1answer
463 views

Keyboard.h not found

I keep getting this error message: "'Keyboard' not found. Does your sketch include the line '#include <Keyboard.h>'?" ... when I have already included Keyboard.h. #include <Keyboard.h> ...
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2answers
46 views

Is Arduino Keyboard in Single User Mode Possible?

Has anyone had success using the keyboard functionality of any arduino in single user mode of mac computers? I would like to inject keystrokes in single user mode, and have been unsuccessful with the ...
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0answers
120 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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1answer
174 views

Wake up a PC from an Uno

I want to wake up a PC via a USB-connected Arduino. When using a Pro Micro (Leonardo) I can do it, as its HID interface can wake up a PC. That is, in the Device Manager, under "Keyboards", the ...
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1answer
392 views

How to convert USB to PS/2? [closed]

Objective: To get my USB keyboard to interface with an Arduino Uno board. Constraints: I can't afford a USB host shield for now for Arduino. Currently available is a keyboard with PS/2 connector. ...
0
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1answer
496 views

NodeMCU capable of key injection?

Short version: Is the NodeMCU capable of key injection in the same way that an Arduino Teensy can be programmed with Duckuino script to function as a HID? Long version: Recently, my 7+ year old iMac ...
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1answer
232 views

Atmel atmega32u4 not recognized when connected by usb after attempting to flash new bootloader

I am making a mechanical keyboard using Atmel's pro micro as the controller. I decided I would try to replace it's bootloader, as the one it ships with doesn't seem compatible with QMK's RESET ...
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2answers
103 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, ...
0
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1answer
122 views

Interacting with a video game - Keyboard & LUFA

I have an Uno and Leonardo that I am trying to have it interact with the GTA V video game. Using the Keyboard library, it works within the OS. But it ocassionally works within the GTA V process. It ...
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0answers
144 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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2answers
424 views

Keypad password check issue

I am working on a school project, basically I have to create a lock system that opens a fictive gate when the correct code is entered. We have been asked to simulate our system before actually ...
0
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1answer
139 views

Use Wii Remote and Arduino to emulate a keyboard for Windows 10?

Is it possible to use an Arduino to communicate with a Wii Remote, connect the Arduino to a Windows 10 computer, and have the Wii Remote inputs be translated into keyboard keys for Windows 10? I've ...
0
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1answer
498 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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0answers
40 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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2answers
2k views

Typing into ESP8266 with a USB keyboard

I need to be able to connect a USB keyboard, like a tiny Xbox keyboard, or a nice wireless one, into an ESP8266-based thing to type passwords into the MCU. Adapting the PS2 lib for AVRs (PS2==USB ...
1
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2answers
678 views

Uno r3 - Can't get USB Keyboards to work with an USB Host Shield

I'm a day 1 beginner to Arduino, and I am trying to obtain input from a USB keyboard. I've connected the USB keyboard to an Arduino USB host shield attached to an Arduino Uno r3, and I am using the ...
0
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2answers
919 views

Digispark ATtiny85 keyboard

I have a small project that I have in mind and I'm pretty new with Arduino. I want to make a small device that if a key was pressed it would do something. Now I know I could use a button with the ...
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2answers
2k views

Arduino/ESP8266 to put PC to sleep and wake it up

I have a Wemos D1 mini that's connected to a pc with usb, I want to be able to sleep the pc and wake it up programmatically. Is there a way to do this? Like sending a simulated sleep keyboard button ...
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2answers
320 views

connecting multiple keypads

My project is to use an Arduino to control the lighting of a small apartment. My preferred option is to replace each wall light switch with a 4x4 membrane keypad (https://www.amazon.co.uk/Mirocle-...
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1answer
72 views

Make Piano keys on Webpage create sound on Arduino (w/out Shield) [closed]

So I am trying to make a digital keyboard on webpage, that when one of the keys are clicked it creates sounds on the Arduino board. I want to do this without an ethernet shield. I am a beginner so I ...
3
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3answers
665 views

Arduino Leonardo as keyboard for an iPad

I'm trying to make a Arduino Leonardo as a Keyboard for an iPad. I was successful with an Arduino UNO. However I'm hoping to use an ATmega 32U4 because of the better HID functionalities and smaller ...
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0answers
315 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....
0
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0answers
28 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 ...
1
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1answer
242 views

65 hall effect sensors as switches to be used as a keyboard with a teensy

I'm trying to wire up a silly little keyboard using hall effect sensors and magnets in a glove. The idea being only I can use the keyboard since I'll have the glove. The sensors are 3 pin, (vcc, gnd,...
1
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1answer
17k views

Arduino nano as HID Keyboard

I'm a bit of a noob in the Arduino area but I found an Arduino nano I bought a long time ago sitting on my shelf and collecting dust, so I taught "why not make a project". I game a lot of racing ...
6
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1answer
2k views

Arduino as a real device to computer

Suppose we have a computer mouse , now when we connect it to a computer then computer understands it is a mouse which is been connected to it. Same thing happens for keyboard and many other devices. ...
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2answers
557 views

Arduino Leonardo as USB Keyboard with WiFi module

I have two PCs: the first is connected to the Arduino via WiFi, this will instruct the Arduino what keys to send, and the second PC is connected to the Arduino via USB that will act as a USB Keyboard ...
3
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2answers
421 views

Grab keys from an ordinary USB kyboard

Arduino USB I want to write an Arduino Sketch (if there is no other possibility it can also be plain c) , to grab keyboard inputs from my ordinary USB keyboard. Preferably without expensive hardware, ...
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2answers
402 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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1answer
116 views

Qduino Mini bricked?

So I have been experimenting with keyboard inputs and I think I may have accidentally put a loop in my code that never actually ends the keyboard input thus not allowing me to upload any sketches to ...
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0answers
36 views

Keyboard for Leonardo

I will try and make a computer powered by the arduino, and I don't know how to get a keyboard working with it. I'll use the arduino leonardo for the computer, but what do I do?
4
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1answer
670 views

Arduino Uno as keyboard

I am trying to make Arduino Uno to act as a keyboard. I have successfully flashed the USB-HID firmware in it using this link also and programmed it like this. uint8_t buf[8] = { 0 }; int inpin1 = 7;...
0
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1answer
65 views

Why does Keyboard.Print adds random values to url?

I'm trying to print a sequence of power shell commands including a url to the powershell interpreter but every time I execute it with the Arduino Micro it adds random values to the url. Here's the ...
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2answers
2k views

How to add extra USB port to Arduino Nano?

I'm trying to use V-USB library to emulate a keyboard using Arduino Nano but because of precaution, I don't want to use it's built-in USB port. My idea is to add another USB port so I cant power my ...
0
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1answer
288 views

Printing multiple double qoutes in print statement

I'm trying to print multiple quotes in a Keyboard.print() function but when i try to escape the character with \ at $output =\"$HOME\Misc\nc.zip\"" and the string does not get recognized by the ide. ...
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1answer
1k views

How to make auto keyboard using arduino nano V3.0 ATmega 328P ?

I have an Arduino Nano v3.0 ATmega328p board. I want to make an auto keyboard that types in a string when its plugged in. I have googled and found that these chips doesn't support that feature unlike "...
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1answer
370 views

Arduino Leonardo - disabling the debugger port

My Sketch program is working perfectly as a specialized keyboard application on the Leonardo. I want to disable the development tools drivers from the USB, (COM PORT) leaving only the HID Keyboard ...
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3answers
6k views

Digispark / DigiKeyboard change keyboard layout

I'm trying to use the Digispark as a Rubber Ducky but the Digispark is only usable with the US laylout. German keyboard layout is QWERTZ. Some keys can be changed, like y and z, but if there are [ or ]...
1
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1answer
194 views

Emulate non-standard keyboard from Arduino

I want to emulate keyboard presses in an old C64 microcomputer using an Arduino. The keyboard connection is a non-standard 20-pin port (i.e. the Arduino keyboard libraries won't be useful) which, as ...
0
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1answer
193 views

Keyboard key press listener

Is there a way to make a listener for a key press to begin a loop? Example: I press the Tab key on my keyboard and the programmed loop begins running. Essentially creating a keyboard hotkey.
3
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1answer
197 views

How to reprogram Arduino if USB port is already in use?

I'm developing a keyboard emulator using Digispark Pro (based on Arduino) which uses USB port as the keyboard interface. I haven't programmed it yet because I doubt how should I recognize the chip to ...
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1answer
2k views

Interfacing key-pad with arduino with 7 segment display [closed]

I have the following components: Arduino Mega 7-segment display 12-digit key-pad For my project, I would like to display on the 7-segment display the number that the user presses on the keypad.
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1answer
886 views

Arduino Keyboard - print() works but println() does not

I am recently seeing strange behavior in my Arduino Yun. Just using the microcontroller, I enter the following: #include <stdlib.h> #include <string.h> // For string operations. #include ...
3
votes
2answers
539 views

How can a USB keyboard emulator (TrinketKeyboard) type Unicode characters?

I've got an Adafruit Trinket microcontroller set up using this USB keyboard tutorial, and it works great. I'd like to set up my project to type a shruggie ( ¯\_(ツ)_/¯ ) when I press a hardware button....