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Capacitive touch sensor TTP224 with 4 buttons
Sensor with TTP224 IC. When touching a surface (1-4) the corresponding output (OUT1-OUT4) will go high and the indicator LED will light up.
Supply voltage: 2.4V-5.5V
Dimensions: 35x29mm
Touch surface dimensions: 7.5x7.5mm In stock -
Keyboard / keyboard 12 keys - matrix outputs
3x4 Key keyboard for use in combination with a microcontroller such as an Arduino.
For example, for entering a security code.
See https://arduwiki.com/wiki/3x4_Matrix_Keypad for connection instructions and Arduino program code.
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Keyboard / keyboard 16 keys - matrix output
In stock
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Membrane keypad 1x1 blue for e.g. Arduino
Keypad with 1 blue button.
With self-adhesive back.
Dimensions: 20x23x1mm
Diameter buttons: 11.5mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x1 gray for e.g. Arduino
Keypad with 1 gray button.
With self-adhesive back.
Dimensions: 20x23x1mm
Diameter buttons: 11.5mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x1 green for e.g. Arduino
Keypad with 1 green button.
With self-adhesive back.
Dimensions: 20x23x1mm
Diameter buttons: 11.5mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x1 red for e.g. Arduino
Keypad with 1 red button.
With self-adhesive back.
Dimensions: 20x23x1mm
Diameter buttons: 11.5mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x1 yellow for e.g. Arduino
Keypad with 1 yellow button.
With self-adhesive back.
Dimensions: 20x23x1mm
Diameter buttons: 11.5mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x2 red/yellow for Arduino
Keypad with red and yellow button.
With self-adhesive back.
Dimensions: 20x40x1mm
Diameter buttons: 11.5mm
Cable length: approx. 95mm. In stock -
Membrane keypad 1x3 red/yellow/green for Arduino
Keypad with red, yellow and green buttons.
With self-adhesive back.
Dimensions: 20x57x1mm
Button diameter: 11.5mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x3 up/down/stop for e.g. Arduino
Keypad with up and down buttons and a stop button.
With self-adhesive back.
Dimensions: 36x55x1mm
Diameter buttons: 11.5mm
Cable length: approx. 107mm. -
Membrane keypad 1x4 blue for e.g. Arduino
Keypad with 4 blue buttons in a row.
With self-adhesive back.
Dimensions: 106x16x1mm
Diameter buttons: 10mm
Cable length: approx. 90mm. In stock -
Membrane keypad 1x4 for e.g. Arduino
Keypad with 4 buttons in a row.
Each button has its own pin and there is a common pin, so you can connect this keypad directly to your Arduino.
With self-adhesive back.
Keypad dimensions: 70x20x1mm.
Length flat cable incl connector: 86mm. In stock -
Membrane keypad 1x4 red/yellow/yellow/green for e.g. Arduino
Keypad with one red, 2 yellow and one green button.
With self-adhesive back.
Dimensions: 20x150x1mm
Diameter buttons: 11.5mm
Cable length: approx. 95mm. In stock -
Membrane keypad 3x4 for e.g. Arduino
This Sealed Membrane 3X4 Button Pad with Sticker can be inserted in row needles on the circuit,the back side has the sticker which can firmly paste to the hassis surface. With the 7pin 2.54mm pitch connector, it can easily be conected to the circuit
In stock
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Membrane keypad 4x1 red/3xyellow/green for Arduino
Keypad with one red, 3 yellow and one green button.
With self-adhesive back.
Dimensions: 20x106x1mm
Button diameter: 11.5mm
Cable length: approx. 95mm. In stock -
Membrane keypad 4x4 for e.g. Arduino
Keypad with 4 columns and 4 rows. Direct connection and readout with the Arduino Keypad library (http://playground.arduino.cc/code/Keypad) or via a PCF8574P I2C port expander with the Arduino Keypad I2C library (http://playground.arduino.cc/Main/I2CPortExpanderAndKeypads).
Each column and each row has a pin on the connector.
Keypad dimensions: 70x... In stock -
Microswitch keypad matrix 4x2
Simple 4x2 keypad with microswitches.
Pins K1 to K8 correspond to the push buttons. G is the common contact.
For direct connection to microcontrollers such as Arduino, Raspberry Pi, ESP8266 and ESP32 or with a multiplexer IC.
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Microswitch keypad matrix 4x4
Pins 1 through 4 are the rows, pins 5 through 8 are the columns.
If pin 2 and pin 8 are connected then switch S8 is pressed. In stock -
Touch/touch sensor capacitive 3x4 MPR121
The MPR121 is a compact capacitive touch controller with I2C interface, ideal for building touch-sensitive interfaces in electronic projects.
This sensor has 3x4 touch sensitive pads and operates on 3.3V.
Because this keypad works with I2C you only need 1 pin on your microcontroller (Arduino/ESP/Raspberry Pi).
There are several libraries for Ardui... In stock
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