#ARDUINO KEYBOARD LIBRARY PORTABLE#
#ARDUINO KEYBOARD LIBRARY SOFTWARE#
#ARDUINO KEYBOARD LIBRARY CODE#

#ARDUINO KEYBOARD LIBRARY CODE#

The capturing_sensor_value.ino code is used to decode the sensor value.

#ARDUINO KEYBOARD LIBRARY SOFTWARE#

Software is written in Arduino programming language. If you are using a different resistor value, use the program (capturing_sensor_value.ino) to find the sensor value before uploading the main Arduino sketch to Arduino board. The project was tested using a 1-mega-ohm resistor. Capacitive sensor can detect anything that is conductive or that has a significantly different permittivity than air, such as the human body or hand. The library turns two or more Arduino pins into a capacitive sensor, which can sense the electrical capacitance of the human body. The circuit requires a capacitive sensor library in Arduino IDE. Note that at higher resistor value, it behaves like a proximity sensor. You can use any resistor value between 100-kilo-ohm and 50-mega-ohm.

The sensor setup includes a medium to high-value resistor, some jumper wires, a small piece of aluminum foil. 2: Circuit diagram of the capacitive touch keyboard Digital pins 2 and 4 of Arduino are used to interface with the sensor. The circuit diagram of the capacitive touch keyboard using Arduino is shown in Fig. Note that you can use only the Arduino boards that use ATmega32U4 such as Micro, Leonardo, Leonardo ETH, etc. It is based on the ATmega32U4 microcontroller (MCU) featuring a built-in USB, which makes the Micro recognisable as a mouse or keyboard. It is easy to integrate with everyday objects to make them interactive. Hardware components include Arduino Micro, 1-mega-ohm resistor, jumper wires, and aluminium foil.ДЄrduino Micro is the smallest board of the family of ATmega32U4 Arduino. 1: AuthorвЂ™s prototype wired on a breadboard The authorвЂ™s prototype wired on a breadboard is shown in Fig. The sensor can be made using any metallic object like aluminium foil, coin, etc. It is a small single keypad device that works on Arduino and capacitive touch sensor.

#ARDUINO KEYBOARD LIBRARY PORTABLE#

This simple DIY project explains how you can make a portable device that performs different keyboard operations like copy and space bar. And what if you can create these different keyboard operations on your own? Have you ever thought about this? In this case, you will just need to modify the press function.Certain shortcuts on your keyboard such as copy, paste or print can definitely simplify your work. If this does not work, create your own library copying the keyboard.cpp and keyboard.h files, calling the class differently and adding the possibility to send the E3 and/or the E7 keys.keyboard.press(KEY_LEFT_GUI) or keyboard.press(KEY_RIGHT_GUI), or use the keyboard.write(KEY_LEFT_GUI) to simulate a press on the key instead of you keeping it pressed). Maybe these modifier keys behave in exactly the same way. However, looking at the header file, there are two predefined keys called KEY_LEFT_GUI and KEY_RIGHT_GUI.

Unluckily the Keyboard::press function (you can see it here) does not accept a so high value, since you can only input numbers between 0 and 255 and, in order to send a raw value, you have to send its value plus 136 (which leads to values 363 and 367). Looking at the list of the HID keyboard codes (page 53), the keys you are looking for have a code of E3 (Keyboard Left GUI) or E7 (Keyboard Right GUI).

Arduino keyboard library