MicroController Pros Home Page My Account  Cart Contents  Checkout  

****Note: We no longer process and ship international orders. Only orders from USA and Canada are now accepted.****
You can place international orders for our products on E-Bay. Just copy the item's title description from our website and paste it into the search box on E-Bay and place your order there.

  Store » EB014 My Account  |  Cart Contents  |  Checkout   
Quick Find
 
Enter keywords to find the product you are looking for in the Quick Find field above

or use
Advanced Search
Categories
Accessory Boards->
8051->
ADI Blackfin
Arduino->
ARM->
Atmel AVR->
Cypress PSoC
Freescale->
FTDI->
Locktronics
Microchip PIC->
MIPS
Parallax->
Renesas
Silicon Labs
ST Microelectronics->
Texas Instruments->
Tibbo->
Books->
Displays->
E-Blocks->
EEPROM/EPROM/FLASH
Embedded Ethernet->
Embedded Software->
I/O Modules->
Parts & Components->
Pick & Place Tools
Programmable Logic (PLD)
Prototype PCBs->
Robotics
ROM/Flash Emulators
Test & Measurement->
Tutorial Software
Universal Programmers->
Wireless->
Information
Intro to Embedded Tools
Embedded News Digest
Useful Resources
Shipping & Returns
Warranty & Liability
Privacy Notice
Conditions of Use
Contact Us
E-Blocks 4x3 Keypad US$20.00

EB014
E-Blocks 4x3 Keypad


This is a downstream E-blocks peripheral module, designed to be controlled by one of the upstream E-blocks processing boards which are available in a variety of MCU/CPLD architectures.

4 by 3 keypad for E-blocks systems

This simple 4×3 keypad permits data entry to a microcontroller I/O port. The four rows are connected via 100k pull-down resistors to ground, so reading a row with all switches open returns a "0". Columns 1, 2 and 3 are routed to port pins 0, 1 and 2 respectively of the upstream microcontroller processing E-block. Rows 1, 2, 3 and 4 are connected to port pins 5, 6, 7 and 8 respectively. These values were chosen to enable the use of interrupts when connecting the keypad to Port B.

This keypad is compatible with upstream boards operating at 3.3V.

The diagram below shows the internal characteristics of the keypad.

Macros for the PIC Flowcode, dsPIC/PIC24 Flowcode, AVR/Arduino Flowcode, and ARM Flowcode flowchart programming software allow for easy use of the keypad with those software packages.

E-Blocks Keypad Resources

E-Blocks Overview

E-Blocks are small circuit boards each of which contains a block of electronics that you would typically find in an electronic system. Each E-Block performs a separate function as either an input sub-system, an output sub-system, an input/output sub-system or a processing sub-system.

E-Blocks can be put together to form a variety of systems that can be used for teaching and learning electronics, and for the rapid prototyping of complex electronic systems.

Each E-Block has one or more 9-way D-type connectors that provide up to eight input/output lines and a ground line. These D-type connectors allow connection between E-Blocks to be made in buses of multiples of 8 lines, just like a real electronic system. Power is routed separately to those E-Blocks that need it.

Processing E-Blocks based on PIC, dsPIC, ARM or AVR microcontrollers, Altera FPGAs, Arduino or Raspberry Pi control the whole E-Blocks system. Processing E-Blocks provide up to five input/output ports with up to eight lines per port.

Please see the E-Blocks Category for a list of available components. For more details on E-Blocks, see the E-Blocks User Guide (in English, French, German and Spanish) or watch the Introduction to E-Blocks video.

Ships from: USA


Optional Recommended Products for this Item
9-pin Sub-D Female to Male Cable, 12cm+ US$3.00

This product was added to our catalog on Wednesday 06 October, 2004.

Reviews

Customers who purchased this product also bought:
E-Blocks 2x16 LCD BoardE-Blocks 2x16 LCD BoardUS$31.00

E-Blocks 8 Push Button BoardE-Blocks 8 Push Button BoardUS$20.00

Shopping Cart more
0 items
What's New? more
SAMD21 Dev Breakout, Arduino-M0 Compatible, Battery Connector
SAMD21 Dev Breakout, Arduino-M0 Compatible, Battery Connector
US$15.95
Tell A Friend
 

Tell someone you know about this product.
Notifications more
NotificationsNotify me of updates to E-Blocks 4x3 Keypad
Reviews more
Write ReviewWrite a review on this product!
  Sunday 06 October, 2024   List of all our Products

Copyright © 2003-2017 MicroController Pros LLC
Powered by osCommerce