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Introduction to Microcontroller Programming * Course Index * Introduction * About the Author * About this Course * Feedback * Course Navigation * Quick Course Navigation * How to use this Course * Acronyms Used and Course Conventions About PICmicro Chips * What is a PICmicro? * Microcontrollers * Digital versus Analogue * Inputs and Outputs * Memory * Programming * 16F1937 Architecture Clocking Your PICmicro Devices * Introduction * The Clock Circuit * Clock Settings * Clock Confusion E-Blocks * Introduction to E-blocks * Using E-blocks * E-blocks Boards ## E-blocks Documentation and Numbering ## Sensor Interface (EB003) ## LED Board (EB004) ## LCD Board (EB005) ## Multiprogrammer (EB006) ## Switch Board (EB007) ## Quad 7-segment Display (EB008) ## Keyboard (EB014) ## Prototype Board (EB016) ## Patch Board (EB017) Flowcode Step By Step * Introduction to Flowcode * Basic Flowcode Functions * Digital Outputs * Digital Inputs * Basic Loops * The LCD Display * Binary Numbers * Decisions * Goto (Connection Point) * 7-Segment Displays * Software Macro * Strings and Memory * A Simple Hi-Fi PICmicro Projects * Introduction to PICmicro Projects * Construction Methods * Choosing a Power Source * Adding Inputs * Input Conditioning * Adding Outputs * Adding Drivers Labs * Introduction and Lesson Plan * 1. Output * 2. Delay * 3. Connection Point * 4. Calculations * 5. Loop * 6. Input * 7. Decision * 8. LCD * 9. Keypad * 10. Analogue + EEPROM * 11. Software Macro * 12. External Interrupt * 13. Timer Interrupt |
(:Summary:Contains the 'action' links (like Browse, Edit, History, etc.), placed at the top of the page, see site page actions:) (:comment This page can be somewhat complex to figure out the first time you see it. Its contents are documented at PmWiki.SitePageActions if you need help. :) * Print (:comment (:if group Site,SiteAdmin,Cookbook,Profiles,PmWiki*:) (:comment delete if and ifend to enable backlinks:) * %item rel=nofollow class=backlinks accesskey='$[ak_backlinks]'% [[{*$Name}?action=search&q=link={*$FullName} | $[Backlinks] ]] (:ifend:) :) * Login Keyboard EB014<^< Quad 7-segment Display (EB008) | Course Index | Prototype Board (EB016) >^>(:nl:) EB014 KeyboardMore information can be found here.  EB014 Keyboard * Click EB014 KeyBoard for a datasheet * This Keyboard input board provides you with 12 input buttons on an 8-bit port. * This is done by alternately making the column lines high and then scanning the 4 row input lines. * If one of the row inputs reads as high, you know which button was pushed. * This is called a 'multiplexed input'. * Flowcode provides the programmer with a hardware macro that takes care of this all. * The keypad is best connected to Port B because this port has a Port interrupt on the lines RB4-RB7, exactly the same lines as the row connections. (:nl:)(:table style="clear:both":)
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