Many people did not think that Hid Keyboard Device existed, but with the rise of technology and advancement of technology, Hid Keyboard Device is now turning into a reality. The HID Keyboard Device is a device that will give the user a keyboard that they can use, but the keyboard will be connected to a computer. The keyboard is a great idea for people who love to work from home. These keyboards are typically used for industrial applications such as manufacturing, point-of-sale systems etc.
If you are looking for a wireless keyboard, the chances are high that you have already heard about the HID standard. However, what exactly does it mean?
This article will give you an insight into this topic and show how to use the different parts of the HID specification in your Arduino projects.
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What is HID keyboard device?
HID stands for “human interface device.” It is a class of devices used to input data or control computers using non-keyboard input devices such as buttons, wheels, touch-sensitive surfaces, etc.
Many other types of interfaces can be attached through USB, including game controllers, joysticks, buttons pads, and so on. The good thing about these devices is that they do not require additional drivers once you have installed the original software that came with them.
For example, if you plug in a USB game controller to your computer, you will have installed the drivers for it by simply installing the game or joystick software that came with it.
The common problem is that the HID class does not require any specific driver and is recognized as a standard keyboard device. It makes it possible for us to control our computer through custom Arduino projects without installing any additional drivers on our system. The only thing we need besides our Arduino board is just one library called a keypad.
Keyboard HID
The main function of this library is sending scan codes that represent the different keystrokes and control characters used to send commands and data to a computer. The code for the keys we will use is as follows:
- Left Control
- Left Shift
- Left Alt (Windows Key)
- Space
- Caps Lock
- Backspace
- Right Alt (Alt Gr or Menu Key) (Only on PC, Keyboard layouts may vary!)
The Keyboard library also makes it possible to input numbers and special characters such as “.” using scan codes. For example, if you want your Arduino board to send out 123, then you would use this line of code:
keyPad.set_key1(KEYPAD_1); keyPad.set_key2(KEYPAD_3); keyPad.set_key4(KEYPAD_7); keyPad.write();
All that is necessary now is to cross the T’s and dot the I’s, which means that all you need to do is create your circuit with a few buttons connected to your Arduino board, upload the right sketch, and you are ready to start playing with your keyboard device!
Conclusion:
HID (Human Interface Device) keyboards are connected to computers or other devices through the Human Interface Device (HID) protocol. If you are looking for a small and portable keyboard, then the HID keyboard device is what you need. It is an ideal solution for people who need a small keyboard. In addition, the device can be used with almost any computer, laptop, or tablet. The small keyboard is ideal for use with mobile phones and other devices.
Do we hope you enjoyed our blog post about what is HID keyboard device? The information contained herein will help you determine if you need to purchase an HID keyboard device.
