Product description: Touch sensitive membrane numeric keypad - 4 keys
Simple numeric keypad with numbers from 1 to 4. Can be used as data input device in projects based on any microcontroller systems like Arduino or STM32. The pinout is 1x5 female connector - raster 2.54, which allows to connect the device via goldpin strip or with use of connecting wires. On the back side there is self-adhesive tape for easy installation of the keyboard.
Connection method
Pinout is shown on the picture below.
From left: key 3, key 4, key 1, key 2, power supply 5 V.
Numeric keypad specifications
- Number of keys: 4
- Dimensions: 69 x 20 x 0.8 mm
- Tape length including connector: 85 mm
- Connector type: 1x5 pin - female raster 2.54 (goldpin connector)
Self-adhesive membrane numeric keypad - 4 keys
We offer excellent numeric keypad for projects using microcontrollers. Component can be used as a tool to enter data into device.
A display would be a great addition to the microcontroller and numeric keypad, so that the user of the device could easily verify the data entered.
Easy-to-mount keys
The component has 4 membrane keys (appropriately numbered), which can be easily fixed to any smooth surface (keyboard is self-adhesive).
The keyboard was designed to be as easy to connect as possible. That's why the keyboard is equipped with a strip, where the leads are arranged with a standard spacing - the raster is equal to 2,54 mm (you can easily connect them to the goldpin strip). There are five wires - 4 corresponding to individual buttons and one power supply (5 V).
