<h1 id="firstHeading" class="firstHeading page-header" lang="en" style="box-sizing: border-box; font-size: 2.5em; margin: 10px 0px 15px; font-weight: 450; line-height: 1.2em; color: #333333; padding-bottom: 15px; border-bottom: 1px solid rgb(238, 238, 238); letter-spacing: -0.01em; background-color: #ffffff;"><span dir="auto" style="box-sizing: border-box;">CM4-IO-BASE-B</span></h1>
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                                       <td class="at-c textwhite" style="box-sizing: border-box; padding: 0px; color: #ffffff !important;"><b style="box-sizing: border-box;">CM4-IO-BASE-B</b></td>
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                                             <div class="tabbertab" title="CM4-IO-BASE-B" style="box-sizing: border-box;"><a href="https://www.waveshare.com/product/cm4-io-base-b.htm" target="_blank" rel="nofollow noreferrer noopener" style="box-sizing: border-box; background-color: transparent; color: #337ab7; text-decoration-line: none; line-height: 1.6;"><img alt="CM4-IO-BASE-B-4.jpg" src="https://www.waveshare.com/w/A6Y79bcq/Kdy80nYY.php?f=CM4-IO-BASE-B-4.jpg&amp;width=400" decoding="async" loading="lazy" width="400" srcset="/w/A6Y79bcq/Kdy80nYY.php?f=CM4-IO-BASE-B-4.jpg&amp;width=600 1.5x, /w/A6Y79bcq/Kdy80nYY.php?f=CM4-IO-BASE-B-4.jpg&amp;width=800 2x" data-file-width="1600" data-file-height="1200" style="box-sizing: border-box; border: none; vertical-align: middle; max-width: 100%; height: auto;" /></a></div>
                                             <div class="tabbertab" title="Compute Module 4" style="box-sizing: border-box;"><a href="https://www.waveshare.com/product/cm4-io-base-b.htm" target="_blank" rel="nofollow noreferrer noopener" style="box-sizing: border-box; background-color: transparent; color: #337ab7; text-decoration-line: none; line-height: 1.6;"><img alt="Compute-Module-4-1.jpg" src="https://www.waveshare.com/w/A6Y79bcq/Kdy80nYY.php?f=Compute-Module-4-1.jpg&amp;width=400" decoding="async" loading="lazy" width="400" srcset="/w/A6Y79bcq/Kdy80nYY.php?f=Compute-Module-4-1.jpg&amp;width=600 1.5x, /w/upload/d/d7/Compute-Module-4-1.jpg 2x" data-file-width="720" data-file-height="540" style="box-sizing: border-box; border: none; vertical-align: middle; max-width: 100%; height: auto;" /></a></div>
                                             <br style="box-sizing: border-box;" /><br style="box-sizing: border-box;" /><small style="box-sizing: border-box; font-size: 12.8px;">Mini Base Board, Composite Breakout Board for Developing with Raspberry Pi CM4 / CM4L</small></div>
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                  <h1 style="box-sizing: border-box; font-size: 30px; margin: 16px 0px 20px; font-family: inherit; font-weight: 500; line-height: 1.1; color: inherit;"><span class="mw-headline" id="Overview" style="box-sizing: border-box; text-shadow: none; color: #7eb128;">Overview</span></h1>
                  <p style="box-sizing: border-box; margin: 7.5px 16px; overflow-wrap: break-word; line-height: 1.8;">CM4-IO-BASE-B is the basic IO board of the Raspberry Pi Compute Module 4. CM4-IO-BASE-B is a baseboard that can be used with the Raspberry Pi Compute Module 4. It is powered by a 5V/ 2.5A USB Type C interface.</p>
                  <h2 style="box-sizing: border-box; font-family: inherit; font-weight: 500; line-height: 45px; color: inherit; margin: 5px; font-size: 22px; padding: 0px 10px; background-color: rgba(247, 247, 247, 0.4); text-shadow: none;"><span class="mw-headline" id="Version_Introduction" style="box-sizing: border-box; text-shadow: none; color: #7eb128; margin-left: -10px; padding: 8px 12px; border-left: 10px solid rgb(126, 177, 40) !important;">Version Introduction</span></h2>
                  <p style="box-sizing: border-box; margin: 7.5px 16px; overflow-wrap: break-word; line-height: 1.8;">Version: CM4-IO-BASE-B V4<br style="box-sizing: border-box;" /></p>
                  <pre style="box-sizing: border-box; overflow: auto; font-family: monospace, Courier; font-size: 14px; padding: 1em; margin: 12px; line-height: 1.5; color: black; word-break: break-all; overflow-wrap: break-word; background-color: #f9f9f9; border: 1px solid rgb(221, 221, 221); border-radius: 4px; text-wrap: wrap;">1: Repair BT-DIS and WIFI-DIS screen printing and actual pins are inconsistent.
2: <font color="#FF0000" style="box-sizing: border-box;">The DSI interface is changed from DSI0 to DSI1, which already supports high resolution. </font></pre>
                  <p style="box-sizing: border-box; margin: 7.5px 16px; overflow-wrap: break-word; line-height: 1.8;"><a href="https://www.waveshare.com/wiki/File:CM4-IO-BASE-B_V4.jpg" class="image" style="box-sizing: border-box; background-color: transparent; color: #337ab7; text-decoration-line: none; line-height: 1.6;" target="_blank"><img alt="CM4-IO-BASE-B V4.jpg" src="https://www.waveshare.com/w/upload/0/08/CM4-IO-BASE-B_V4.jpg" decoding="async" loading="lazy" width="360" data-file-width="360" data-file-height="227" style="box-sizing: border-box; border: none; vertical-align: middle; max-width: 100%; height: auto;" /></a></p>
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