View source for RFID-Expansion-Microbit

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== RFID Expansion for Micro:Bit ==
RFID Expansion for Micro:bit is an RFID device with an updated UART interface running at the frequency of 125KHz, Programmable Buzzer, two Dedicated slots for Servo Motor Interfacing, USB power port, and a compact design that compatibles with all the variants of Micro:bit, V1 and V2 both. It is developed with an expansion header to connect the RFID module with Micro:bit via easy stacking.

=== Features ===
<li> Standard RFID Expansion for Micro:bit </li>
<li> Two Dedicated slots for Servo Motor Interfacing </li>
<li> Programmable Buzzer</li>
<li> Power and card LED indicator </li>
<li> Comes with development resources and material  </li>
<li> USB power port to provide power to RFID module and Micro:bit </li>
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=== Specifications ===
<li> Operating Voltage - 5V </li>
<li> Operating Frequency - 125 kHz </li>
<li> Communication Interface - External Pins ( GPIO and Power Pins) </li> 
<li>Default Baud Rate - 9600 bps </li>
<li> Dimensions - 55.82 x 68 mm </li>

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[[File:Microbit_rfid_expansion.png|thumb|left|alt=Microbit RFID Expansion.| Buy it From : ''[https://shop.sb-components.co.uk/products/rfid-expansion-for-micro-bit Click Here]'']]
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== Pinout ==

<table class="wikitable">
<tr> <th>Expansion Pins </th> <th>Micro:Bit Pins </th></tr>

<tr> <td> RFID TX </td> <td> P1 </td></tr>
<tr> <td> BUZZER </td> <td> P8 </td></tr>
<tr> <td> SERVO 1 </td> <td> P2 </td></tr>
<tr> <td> SERVO 2 </td> <td> P16 </td></tr>
</table>

== Programming ==
==== Drag and Drop ====
<b> Source code link :</b> https://github.com/sbcshop/RFID-Expansion-For-Microbit/
<li> Attach Micro:bit on stackable connector of RFID Expansion of Microbit as shown below. </li>
[[File:Microbit_rfid_expansion.png|400px]]
<li>Visit official programming website of Micro:Bit https://makecode.microbit.org/</li>

<li>Now Create a new project by clicking on <b>"New project"</b> tab and enter the name of your project.</li>
https://github.com/sbcshop/RFID-Expansion-For-Microbit/raw/main/images/makecode_microbit.PNG

<li>Now drag and drop the block as shown in the image below and click on the download button to download it on your Microbit.</li>
https://github.com/sbcshop/RFID-Expansion-For-Microbit/raw/main/images/microbit-rfid.PNG

<li>Tap RFID card, Keyfob or Tag on RFID receiver to show 12 digit unique id of card on led matrix of Microbit.</li>

==== Alternate Method ====
<li>You can directly drag and drop test.hex file to Microbit to run the above said program and Tap card/Tag to display their unique id on led matrix.</li>