HID devices (Human Interface Devices) are nowadays used every day by everyone to interact with digital technology. This is perhaps the most popular category of peripherals electronic devices. This group includes devices such as a TV remote control, game console controller, computer mouse or keyboard.
In addition to PCs, keyboards are also used in many other devices. A perfect example will be ATMs, cash registers, landline telephones, door stations, control and automation devices and many more. Of course, the computer keyboards themselves are different from each other. We can distinguish, for example, classic keyboards for desktop computers (wireless keyboards, wired keyboards), laptop keyboards, keyboards attached to a TV, game console, smartphone, as well as professional gaming or specialized keyboards.
In this category, you can choose from dozens of different keyboards. All products are characterized by attractive prices and the highest quality of workmanship. The Botland store offers a wide selection of small keyboards at an affordable price, allowing you to build a simple control interface for your project.
Keyboard mebranowa with 4 colored buttons to connect the keyboard using the ribbon completed 5-pin female connector. The raster of the connector terminals is 2.54 mm. The keyboard can be combined easily with the basic module, for example, the Arduino and used to control the functions of the project. Back keyboard is placed, the tape is self-adhesive.
Features 3 colored buttons membrane keypad. A simple input device for project management, e.g. based on Arduino or STM32. The findings of the keyboard was implemented in the form of tape length 90 mm , ending with a 4-pin female connector. On the reverse side of the keyboard is the tape, which allows the installation of a keyboard on any surface.
Membrane keypad with two buttons, red and yellow, in addition, the buttons were placed arrows up and down. Thanks strzałkom navigation keyboard is perfect as the UPR to control our project, for example, a robot or a monitoring system, and navigation system. For mounting the keyboard in the right place, we can use prepared tape.
The keyboard has two colored buttons. The findings of the keyboard was made in the form of a tape jumper, ending a 3-pin connector common on rasterze 2.54 mm. Plug located at the end of the tape greatly simplifies the process of connecting the keyboard with the main module, for example, Arduino. To perform such a connection can be wire or connectors...
Keyboard with one round green color button. The size of the module is 23 x 20 mm. The findings of the keyboard is made in the form of tape length 90 mm , ending with a 2-pin plug common on rasterze 2.54 mm. In addition, on the rear panel of the device there was tape self-adhesive for easier installation of the device in the project.
Membrane keypad with one button red. Connecting the keyboard has a tape length of 90 mm, one tape has been completed plug in common with a step of 2.54 mm. Placed on the reverse side tape , self-adhesive, facilitates the installation of a keyboard on any surface.
Equipped with ribbon membrane keypad with one button in the color yellow. To connect the keyboard with the main module using the ribbon completed the 2-pin plug-in General, which needs to be combined with, for example, the Arduino by means of connecting cables or straps goldpin. Raster made connector is 2.54 mm.
Keyboard with one button in blue color, come with tape for the location of the keyboard on any surface and in any place. Keyboard connectors were removed in a ribbon jumper terminated 2-pin plug-in General with a step of 2.54 mm.
The keyboard has one round button in the color gray. On the back is a layer of Scotch tape. Equipped with a tape length of 94 mm, with 2-pin connector with pitch 2.54 mm module Size 24 x 20 mm, and the diameter of buttons 12 mm.
Membrane keyboard with 16 keys in 4 x 4. There are numbers from 0 to 9, letters: A, B, C, D, and special symbols: * and #. On the reverse side there is adhesive tape for ease of installation. The keyboard has a ribbon connector 8-pin pitch 2.54 mm.
The matrix consists of 10 buttons of a tact switch type, arranged in two rows and five columns. The board also contains a joystick. The module communicates via 5-bit interface displayed on the 7 popular goldpin connectors - pitch of 2.54 mm.
Touch keyboard, equipped with 8 buttons and the linear sensor with the goldpin connector - pitch of the 2.54 mm. It communicates via an I2C bus or digital outputs for each button separately, its external dimensions: 68 x 47 mm.
First of all, define your needs to choose the keyboard that will suit you best. When it comes to 'hard' criteria, it is worth considering the type of keyboard in the context of how it is constructed.
The traditional keyboard is the most popular variant - as the name suggests - to perform standard activities. In such devices we only find basic functions, but they are sufficient if someone needs a keyboard only to perform simple activities at the computer. The multimedia keyboard will work slightly differently. Multimedia keyboards are equipped with both ordinary keys and special, multifunctional buttons. Multimedia keyboards were very popular a few years ago, now the latest stage in the evolution of this type of device are specialized gaming keyboards. Equip yourself with a gaming keyboard and give you an advantage over other online players! Besides, the rest will then be simply more comfortable.
Of course, it is also worth highlighting other types of specialized keyboards. A good example will be numeric keyboards, keyboards mounted on industrial computers, ATMs or CAD machines.
Other types of keyboards, due to the way they are built, are membrane keyboards and mechanical keyboards. The most popular products have a membrane, which is - to simplify - a plastic mesh / shell with microcircuits that send information to the motherboard when a given button is pressed. The buttons on a typical membrane keyboard are arranged in the form of columns and rows. For example, a 3X4 keyboard has three columns and three rows, and a 4X4 keyboard has four rows and four columns.
Membrane keyboards are very cheap and silent. The buttons work a bit slower, however, each button of such a keyboard is correlated (by the membrane) with others. There is a membrane button between each key.
A completely different mechanism was implemented in mechanical keyboards. In this case, each button is a separate, individual structure. As a result, the buttons are very springy and do not need to be pressed to the bottom. The disadvantage is the higher volume during use. Nevertheless, most professional gaming keyboards are mechanical devices.
It is worth to notice that there is a kind of compromise. It is about membrane-mechanical keyboards. The design of the device includes rubber elements and an individual mechanical switch.
Are you fascinated by programmable electronics and you are familiar with names such as Raspberry Pi or Arduino? Then you should know how important even the most standard keyboards may be in context of your own DIY electronic projects!
Keyboards allow the user to enter input while the program is executing a set of instructions and commands. The Botland store also offers keyboard modules compatible with Arduino. I also propose a special Keypad electronic library. The keyboard will be a great addition to the design that will allow you to conveniently control the software. Now choose the keyboard you need the most!