https://tommy0804.ddns.net/index.php?action=history&feed=atom&title=ADC%2C_MCP3008 2026-08-21T17:32:17Z 本wiki上此頁面的修訂紀錄 MediaWiki 1.43.9 https://tommy0804.ddns.net/index.php?title=ADC,_MCP3008&diff=494&oldid=prev 2026-08-21T05:17:34Z

<p>Refactor: add [[Category:Sensors and Modules ]]</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hant-TW"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2026年8月21日 (五) 13:17的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l92">第92行：</td> <td colspan="2" class="diff-lineno">第92行：</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Measured voltage = 0x21D * 3.3 / 1024 = 1.7v</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Measured voltage = 0x21D * 3.3 / 1024 = 1.7v</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Sensors and Modules]]</ins></div></td></tr> </table>

Tommy https://tommy0804.ddns.net/index.php?title=ADC,_MCP3008&diff=151&oldid=prev 2018-08-23T03:14:47Z

<p>已建立頁面，內容為 &quot;<a href="/index.php/%E6%AA%94%E6%A1%88:MCP3008.JPG" title="檔案:MCP3008.JPG">800px|MCP3008</a> <a href="/index.php/%E6%AA%94%E6%A1%88:MCP3008_input.jpg" title="檔案:MCP3008 input.jpg">800px|MCP3008 with multi meter</a> == Connection == &lt;pre&gt; MCP3008 Bus Pirate ======================= Vd…&quot;</p> <p><b>新頁面</b></p><div>[[File:MCP3008.JPG|800px|MCP3008]]<br /> [[File:MCP3008_input.jpg|800px|MCP3008 with multi meter]]<br /> == Connection ==<br /> &lt;pre&gt;<br /> MCP3008 Bus Pirate<br /> =======================<br /> Vdd +3.3V<br /> Vref +3.3V<br /> AGND GND<br /> CLK CLK<br /> Dout MISO<br /> Din MOSI<br /> CS/SHND CS<br /> DGND GND<br /> <br /> CH0 Vin<br /> CH1 Vin<br /> CH2 Vin<br /> CH3 Vin<br /> CH4 Vin<br /> CH5 Vin<br /> CH6 Vin<br /> CH7 Vin<br /> &lt;/pre&gt;<br /> <br /> == SPI mode setting==<br /> &lt;pre&gt;<br /> HiZ&gt;m<br /> 1. HiZ<br /> 2. 1-WIRE<br /> 3. UART<br /> 4. I2C<br /> 5. SPI<br /> 6. 2WIRE<br /> 7. 3WIRE<br /> 8. LCD<br /> 9. DIO<br /> x. exit(without change)<br /> <br /> (1)&gt;5<br /> Set speed:<br /> 1. 30KHz<br /> 2. 125KHz<br /> 3. 250KHz<br /> 4. 1MHz<br /> <br /> (1)&gt;1<br /> Clock polarity:<br /> 1. Idle low *default<br /> 2. Idle high<br /> <br /> (1)&gt;1<br /> Output clock edge:<br /> 1. Idle to active<br /> 2. Active to idle *default<br /> <br /> (2)&gt;2<br /> Input sample phase:<br /> 1. Middle *default<br /> 2. End<br /> <br /> (1)&gt;1<br /> CS:<br /> 1. CS<br /> 2. /CS *default<br /> <br /> (2)&gt;2<br /> Select output type:<br /> 1. Open drain (H=Hi-Z, L=GND)<br /> 2. Normal (H=3.3V, L=GND)<br /> <br /> (1)&gt;2<br /> &lt;/pre&gt;<br /> <br /> == ADC Read command ==<br /> * SPI Timing<br /> [[File:MCP3008_01.jpg|MCP3008 - write cmd and get result]]<br /> * SPI clock<br /> [[File:MCP3008_02.jpg|MCP3008 - SPI colck 30kHz]]<br /> * B9 - B0 stands for digital output<br /> * Measured voltage = 0xB9.B0 * (input voltage, ex., 3.3v) / 1024 <br /> &lt;pre&gt;<br /> SPI&gt;][0x18rr]<br /> /CS DISABLED<br /> /CS ENABLED<br /> WRITE: 0x18 ( XXX - start bit - single/diff - D2 - D1 - D0)<br /> READ: 0xA1 ( XX - B9 - B8 - B7 - B6 - B5 - B4)<br /> READ: 0xD7 ( B3 - B2 - B1 - B0 - XXXX)<br /> /CS DISABLED<br /> SPI&gt;<br /> <br /> # Measured voltage = 0x21D * 3.3 / 1024 = 1.7v<br /> &lt;/pre&gt;</div>

Tommy