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4X4 MATRIX ARRAY MEMBRANE KEYPAD (4x4 keypad matrix)
Description:

This flexible 4x4 matrix keypad is connected to an 8 pin DuPont Female connector. It can be attached to a surface via the adhesive back by removing the white protective paper backing.

Specifications:
  • Contact Resistance: 10Ω-500Ω
  • Insulation Resistance: 100MΩ 100V
  • Key Operating Force: 150-200N
  • Circuit Rating: 35V DC, 100mA, 1W
  • Dielectric Strength: 250V RMS (50-60HZ/Min)
  • Electric Shock Jitter: ï¼ÂÂœ5ms
  • Operating Temperature: -40 deg. C ~ 80 deg. C
  • Storage Temperature: -40 deg. C ~ 80 deg. C
  • Vibration: 20G, max
  • Size: 68mm x 76mm
Contents:
  • 1 x 4x 4 Matrix Array Membrane Keypad
Resources:


R16.90  Inc VAT
12 Key MCU Membrane Switch Keypad 4 x 3 Matrix Array Matrix Keyboard Module (black button keypad)
Description:  
 
This high quality 4x3 Keypad Matrix lets you quickly add controls to your electronics projects. It offers 0-9 numerals, standard star(*) and hash(#) symbols.
 
Features:
 
- 100% brand new and high quality.
- 12 Button Matrix   0-9 # *
- Easy communication with any microcontroller
 
Package Includes:
 
1 x 12 Keys Switch Keyboard Module

Overview of matrix membrane and Raspberry Pi
R109.90  Inc VAT
RPi Touch Keypad (RPi touch pad hat)
Features
  • Supports any revision of Raspberry Pi (directly-pluggable)
  • Provides your Pi with 16 touch keys
  • Features TONTEK TonTouch touch pad detector IC TTP229-LSF, supports up to 16 keys with adjustable sensitivity and built-in LDO
  • The system re-calibrates automatically when all keys are not detected touch more than about 4 seconds
Specifications
  • Interface : I2C
  • Keys : 16
  • Sampling rate : 8Hz
  • Human Body Mode : 6KV
  • Operating voltage : 2.4V-5.5V
  • Operating temperature : -40℃ to 85℃
  • Storage temperature : -50℃ to 125℃
  • Dimensions : 8.5CM × 5.6CM
How to Use
  • After power-on have about 0.5sec stable-time. During the time do not touch the key pad, and all functions are disabled
Pinouts
  • VCC : Power supply (2.4V-5.5V)
  • GND : Ground
  • SDA : I2C SDA
  • SCL : I2C SCL
Dimensions



Downloads/Development resources: 

schematic, demo code, datasheets, etc.
Download: www.waveshare.com/wiki/RPi_Touch_Keypad


R109.90  Inc VAT
LCD Keypad Shield LCD1602 LCD 1602 Module Display For Arduino ATMEGA328 ATMEGA2560 raspberry pi UNO blue screen (buttons blue backlight)
Description
  •     This is a basic 16 character by 2 line display.   
  •     Utilizes the extremely common HD44780 parallel interface chipset.   
  •     Interface code is freely available.   
  •     Blue Backlight with white words.   
  •     uses 4 Bit Arduin LCD Library.   
  •     Size:8cm x 5.9cm - 3.15inch x 2.32inch   


Package Content:

1 X Keypad Shield 1602 LCD

DFRobot WIKI
R99.90  Inc VAT
Pico RGB Keypad Base (Pico RGB Keypad Base)
Description:

Connect a glorious, squishy, 4x4 rainbow-illuminated keypad to your Raspberry Pi Pico - perfect for making a custom USB input device!

Scoring very highly in the Pimoroni "things on our desk that make people say ooo" rankings, RGB Keypad Base equips a Pico with an eye-catching 4x4 silicone keypad, fully loaded with addressable APA102 LEDs so that each key can be illuminated in any colour that your little unicorn heart desires. It's all mounted on a sturdy base with rubber feet to keep it nice and level, with a handily labelled landing area for your Pico. We've broken out the full set of Pico pins to make it easy to connect up other hardware as well.

Connect your Pico project to another computer via USB for a beautiful macro keypad or a tidy midi controller. RGB Keypad Base would also work well in any project that would benefit from having fancy light up buttons as inputs - a code protected door lock perhaps, a disco dance floor for your fingers or a Simon Says style game with which to taunt your friends.

A Raspberry Pi Pico is not included - click here if you'd like to buy one!

Your Pico will need to have male headers soldered to it (with the pins pointing downwards) to attach to our add-on boards.

Features

  • 4x4 silicone keypad with conductive buttons
  • 16 x APA102 addressable RGB LEDs (datasheet)
  • Keypad buttons are connected via a TCA9555 IO expander (I2C address: 0x20).
  • Labelled landing area with female headers for attaching your Pico, with broken out pins.
  • Compatible with Raspberry Pi Pico.
  • Some assembly required!
  • No soldering required (as long as your Pico has header pins attached).
  • Dimensions: approx 60mm x 101mm x 16mm (L x W x H, assembled)
  • C/C and MicroPython libraries

Includes

  • 1x Pico RGB Keypad Base
  • 1x (reversible) square retainer plate
  • 1x silicone keypad
  • M2 8mm bolts and nuts
  • 4x rubber feet

Getting started

Turn the larger board over, and attach the little rubber feet to the paw print spaces on the bottom.

Flip it over again, and pop the silicone keypad over the buttons so the tabs fit into the holes. You can then slot the retainer plate over the top of the keys, matching up the key markings with those on the base board. You can install the retainer plate either way up, depending on whether you prefer it patterned or plain!

Poke the M2 bolts through the holes in the mounting plate (from the top) and screw on the nuts to keep all the layers sandwiched together. The bolts only need to be tightened up enough to keep the layers in place - if you find that the keys are hard to push or that the silicone layer is bulging out of the sides you might want to slacken them off a bit.

The labels on the base will show you which way round to attach your Pico - just match up the USB port to the markings on the board.

The easiest way to get started is by downloading and copying our custom MicroPython uf2 to your Pico, it includes all the libraries you'll need to use our add-ons. Click here for our beginner friendly tutorial!

You can find C examples here and MicroPython examples here.

Pinout

R479.90  Inc VAT
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