https://revspace.nl/wiki/index.php?action=history&feed=atom&title=File%3APlant_board_top.jpg 2026-05-13T12:04:57Z Revision history for this page on the wiki MediaWiki 1.43.6 https://revspace.nl/wiki/index.php?title=File:Plant_board_top.jpg&diff=14850&oldid=prev 2017-07-02T19:54:23Z

<p>Addig to category</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="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:54, 2 July 2017</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</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>The board was a bit small for this project, but all fits. The whole thing uses the magic of the 4093 (a quad, dual input, Schmitt-trigger NAND port IC). It feeds the feelers (green pins) with a low current AC, then checks whether or not the voltage is high enough to trigger the next gate. Then a diode detector that converts the pulses to a nice DC level. This is available on the yellow pin for further processing. The last port of the 4093 is used to blink the LED.</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>The board was a bit small for this project, but all fits. The whole thing uses the magic of the 4093 (a quad, dual input, Schmitt-trigger NAND port IC). It feeds the feelers (green pins) with a low current AC, then checks whether or not the voltage is high enough to trigger the next gate. Then a diode detector that converts the pulses to a nice DC level. This is available on the yellow pin for further processing. The last port of the 4093 is used to blink the LED.</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;"><br></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;"><br></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Power is applied to red and blue, 4-5V is perfect, but even 15V should work! (The LED might die though!)</div></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>Power is applied to red and blue, 4-5V is perfect, but even 15V should work! (The LED might die though!) <ins style="font-weight: bold; text-decoration: none;">[[Category:Pictures]]</ins></div></td></tr> </table>

DaveBot https://revspace.nl/wiki/index.php?title=File:Plant_board_top.jpg&diff=4040&oldid=prev 2013-09-19T06:11:37Z

<p>The board was a bit small for this project, but all fits. The whole thing uses the magic of the 4093 (a quad, dual input, Schmitt-trigger NAND port IC). It feeds the feelers (green pins) with a low current AC, then checks whether or not the voltage is hig</p> <p><b>New page</b></p><div>The board was a bit small for this project, but all fits. The whole thing uses the magic of the 4093 (a quad, dual input, Schmitt-trigger NAND port IC). It feeds the feelers (green pins) with a low current AC, then checks whether or not the voltage is high enough to trigger the next gate. Then a diode detector that converts the pulses to a nice DC level. This is available on the yellow pin for further processing. The last port of the 4093 is used to blink the LED.<br /> <br /> Power is applied to red and blue, 4-5V is perfect, but even 15V should work! (The LED might die though!)</div>

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