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General Minitrail Talk
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Digital Speedometer 12v
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<blockquote data-quote="Adam-NLV" data-source="post: 180441" data-attributes="member: 3868"><p>Not so much to change the number of impulses per rotation but the<u> length of the impulse </u><strong>aka:frequency</strong> that's happening per second not per rotation.....My initial idea is just to slow the impulses (frequency) down or to delay them from 20 ms that they are at now when drill is at full speed, and adjust the 'pot' (<em>potentiometer</em>) to 15 ms delay time. or <strong><em>In</em></strong> <strong><em>layman's terms; slow down the pulse to beat at fifteen million times a second down from the 20million times a second it beats now.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> </em></strong>We'll use the 555 to do this.</p><p></p><p>Thanks for the enthusiasm, I'm getting stoked for this too! Will check the mail this morning and hopefully the 555 from California are here.</p><p></p><p>The ones I ordered from China <strong><em>40 chips for $2.99 LOL</em><img src="/styles/default/xenforo/smilies/laugh.png" class="smilie" loading="lazy" alt=":LOL:" title="Laugh :LOL:" data-shortname=":LOL:" /></strong> will take some time to get here..</p></blockquote><p></p>
[QUOTE="Adam-NLV, post: 180441, member: 3868"] Not so much to change the number of impulses per rotation but the[U] length of the impulse[B] [/B][/U][B]aka:frequency[/B] that's happening per second not per rotation.....My initial idea is just to slow the impulses (frequency) down or to delay them from 20 ms that they are at now when drill is at full speed, and adjust the 'pot' ([I]potentiometer[/I]) to 15 ms delay time. or [B][I]In[/I][/B] [B][I]layman's terms; slow down the pulse to beat at fifteen million times a second down from the 20million times a second it beats now.;) [/I][/B]We'll use the 555 to do this. Thanks for the enthusiasm, I'm getting stoked for this too! Will check the mail this morning and hopefully the 555 from California are here. The ones I ordered from China [B][I]40 chips for $2.99 LOL[/I]:LOL:[/B] will take some time to get here.. [/QUOTE]
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Digital Speedometer 12v
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