Breadboards

VKey Voltage Keypad

PRT-12080

Ny vare

Traditional digital keypad interfacing techniques can require a large number of digital I/O lines. On a small controller, there may not be many I/O pins left for other tasks. The VKey operates at a voltage of 3.3-5.5V and features a dual opamp which is used as a current source and buffer amplifier.

Flere detaljer

2 Styk på fjernlager bestil før Torsdag kl 15 og modtag denne varer Tirsdag ugen efter

Få en mail når varen er på lager
Du får en mail så snart varen er på lager

149,50 kr

Yderligere information

This is the SparkFun VKey Voltage Keypad, a simple board that adds a keypad to your microcontroller project without using multiple I/O pins. This keypad has 12 pushbutton switches in a 3x4 array. The VKey operates by outputing an analog voltage to encode which key has been pressed, which can be read by an analog to digital converter on a microcontroller on a single input pin.

Note: The SparkFun VKey Voltage Keypad comes with the surface mount components assembled, but the PTH tactile switches are loose, and will need to be soldered to the board. Check the Hookup Guide in the Documents section below for assembly instructions.

Documents:

Varetilpasning

Når du har gemt din kundetilpassede vare, skal du huske at tilføje den til din kurv.

loader

* obligatoriske felter