<p>Plug the board into a Raspberry Pi with the square solder pad
connected to pin 1 of the GPIO connector. Connect the clock
(either way around) to the pads labelled "J2".</p>
+ <h2>Parts</h2>
+ <p>The parts I used to assemble my ClunkPi were:</p>
+ <table>
+ <tr><th>Ref</th><th>Brand</th><th>MPN</th>
+ <th>Distributor & PN</th><th>Description</th></tr>
+ <tr><td>D1</td><td>Taiwan Semiconductor</td><td>1N4933</td>
+ <td>Farnell 2677321</td><td>Silicon diode, 50 V, 1 A</td></tr>
+ <tr><td>J1</td><td>Amphenol FCI</td><td>76342-313LF</td>
+ <td>Farnell 1097985</td><td>26-way pin socket</td></tr>
+ <tr><td rowspan='4'>Q1</td>
+ <td>ON Semiconductor</td>
+ <td><a href="https://www.onsemi.com/PowerSolutions/product.do?id=2SC6144SG">2SC6144SG</a></td>
+ <td>Farnell 2533297</td><td>High-gain power transistor</td></tr>
+ <tr><td>Laird</td><td>A15037-101</td>
+ <td>Mouser 739-A15037101</td><td>TO-220 heatsink pad</td></tr>
+ <tr><td/><td/><td>Farnell 149556</td><td>M3 × 10 screw</td></tr>
+ <tr><td/><td/><td>Mackay</td><td>M3 Nyloc nut</td></tr>
+ <tr><td>R1</td><td>Vishay</td>
+ <td><a href="http://www.vishay.com/ppg?28724">MRS25000C5118FCT00</a></td>
+ <td>Farnell 9469303</td><td>Resistor, 5.11 Ω, 1%, 600 mW</td></tr>
+ <tr><td>R2</td><td>Multicomp</td><td>MCRE000032</td>
+ <td>Farnell 1700231</td><td>Resistor, 390 Ω</td></tr>
+ <tr><td>U1</td><td>Texas Instruments</td>
+ <td><a href="https://www.ti.com/product/tlv431/">TLV431CLPE3</a></td>
+ <td>Farnell 1236566</td><td>Shunt regulator, 1.24 V</td></tr>
+ </table>
+ <h2>Boards</h2>
+ <p>I got my boards made by
+ <a href="https://aisler.net">AISLER</a>
+ because they were cheap. I fed them the KiCad PCB file
+ directly.</p>
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