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	<title>Comments on: DIY Electronics Tester Kit M168</title>
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	<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/</link>
	<description>All about electronics and circuit design</description>
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		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1735849</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Fri, 05 Nov 2021 14:03:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1735849</guid>
		<description><![CDATA[https://www.uraltone.com/komponenttitesterimoduli.html]]></description>
		<content:encoded><![CDATA[<p><a href="https://www.uraltone.com/komponenttitesterimoduli.html" rel="nofollow">https://www.uraltone.com/komponenttitesterimoduli.html</a></p>
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	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1586098</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Sun, 25 Mar 2018 20:42:13 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1586098</guid>
		<description><![CDATA[Review: Transistor Tester
https://hackaday.com/2015/04/24/review-transistor-tester/]]></description>
		<content:encoded><![CDATA[<p>Review: Transistor Tester<br />
<a href="https://hackaday.com/2015/04/24/review-transistor-tester/" rel="nofollow">https://hackaday.com/2015/04/24/review-transistor-tester/</a></p>
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	</item>
	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1581794</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Tue, 13 Feb 2018 08:55:14 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1581794</guid>
		<description><![CDATA[EEVblog #1020 - Is A $7 LCR / Component Tester Any Good?
https://www.youtube.com/watch?v=7Br3L1B80ow

Is a $7 LCR Meter / Component Tester from Ebay any good?
Dave tests the M328 (LCR-T4) model component tester.]]></description>
		<content:encoded><![CDATA[<p>EEVblog #1020 &#8211; Is A $7 LCR / Component Tester Any Good?<br />
<a href="https://www.youtube.com/watch?v=7Br3L1B80ow" rel="nofollow">https://www.youtube.com/watch?v=7Br3L1B80ow</a></p>
<p>Is a $7 LCR Meter / Component Tester from Ebay any good?<br />
Dave tests the M328 (LCR-T4) model component tester.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1578729</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Fri, 19 Jan 2018 12:19:17 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1578729</guid>
		<description><![CDATA[Want to Build an Arduino-Based Component Tester?
https://www.eeweb.com/profile/max-maxfield/articles/want-to-build-an-arduino-based-component-tester

These little beauties are amazing value for $15 to $20, and I can no longer imagine not having one on my desk (I just now discovered you can buy this M328 kit version on eBay for only $3.65, which I find to be mind-blowing).

 My understanding is that the original tester was created by Markus Frejek, and that this work -- which I believe is open source -- was subsequently refined by Karl-Heinz Kübbeler. In fact, Karl -- who is my new hero -- has published this 132-page document describing his work in detail.

On Page 6 of Karl&#039;s opus we read: &quot;Operates with ATmega8, ATmega168 or ATmega328 microcontrollers. Additionally, ATmega644, ATmega1284, ATmega1280 or ATmega2560 microcontrollers can be used.&quot; This is cool beans indeed! The Arduino Uno is based on the ATmega328P, so we&#039;re all set on the microcontroller front.

http://www.avrtester.tode.cz/upload/ttester_en.pdf

On the one hand, you could say &quot;What&#039;s the point?&quot; This is a fair question. Why work yourself into the ground to do something that&#039;s already been done and that you can buy in kit form for only $3.65? My answer would be that building one&#039;s own Arduino shield -- along with the associated sketch (program) -- would have tremendous educational value.]]></description>
		<content:encoded><![CDATA[<p>Want to Build an Arduino-Based Component Tester?<br />
<a href="https://www.eeweb.com/profile/max-maxfield/articles/want-to-build-an-arduino-based-component-tester" rel="nofollow">https://www.eeweb.com/profile/max-maxfield/articles/want-to-build-an-arduino-based-component-tester</a></p>
<p>These little beauties are amazing value for $15 to $20, and I can no longer imagine not having one on my desk (I just now discovered you can buy this M328 kit version on eBay for only $3.65, which I find to be mind-blowing).</p>
<p> My understanding is that the original tester was created by Markus Frejek, and that this work &#8212; which I believe is open source &#8212; was subsequently refined by Karl-Heinz Kübbeler. In fact, Karl &#8212; who is my new hero &#8212; has published this 132-page document describing his work in detail.</p>
<p>On Page 6 of Karl&#8217;s opus we read: &#8220;Operates with ATmega8, ATmega168 or ATmega328 microcontrollers. Additionally, ATmega644, ATmega1284, ATmega1280 or ATmega2560 microcontrollers can be used.&#8221; This is cool beans indeed! The Arduino Uno is based on the ATmega328P, so we&#8217;re all set on the microcontroller front.</p>
<p><a href="http://www.avrtester.tode.cz/upload/ttester_en.pdf" rel="nofollow">http://www.avrtester.tode.cz/upload/ttester_en.pdf</a></p>
<p>On the one hand, you could say &#8220;What&#8217;s the point?&#8221; This is a fair question. Why work yourself into the ground to do something that&#8217;s already been done and that you can buy in kit form for only $3.65? My answer would be that building one&#8217;s own Arduino shield &#8212; along with the associated sketch (program) &#8212; would have tremendous educational value.</p>
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	<item>
		<title>By: denneval</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1545364</link>
		<dc:creator><![CDATA[denneval]]></dc:creator>
		<pubDate>Sun, 30 Apr 2017 10:08:32 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1545364</guid>
		<description><![CDATA[Bonjour
Je possède cette version 1,12K . Cependant une question et qui se trouve sur la carte de l&#039;afficheur &quot;1602A&#039;
Je souhaite connaître la référence de U3 qui se trouve sur l&#039;afficheur ainsi que les composants autour de ce CI. Comme de connaître sa fonction ainsi que J1, J2, J3....
Cordialement]]></description>
		<content:encoded><![CDATA[<p>Bonjour<br />
Je possède cette version 1,12K . Cependant une question et qui se trouve sur la carte de l&#8217;afficheur &#8220;1602A&#8217;<br />
Je souhaite connaître la référence de U3 qui se trouve sur l&#8217;afficheur ainsi que les composants autour de ce CI. Comme de connaître sa fonction ainsi que J1, J2, J3&#8230;.<br />
Cordialement</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Mark skrivseth</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1528135</link>
		<dc:creator><![CDATA[Mark skrivseth]]></dc:creator>
		<pubDate>Sat, 10 Dec 2016 04:21:25 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1528135</guid>
		<description><![CDATA[I have this meter. Love it for the price.]]></description>
		<content:encoded><![CDATA[<p>I have this meter. Love it for the price.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Mark skrivseth</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1528134</link>
		<dc:creator><![CDATA[Mark skrivseth]]></dc:creator>
		<pubDate>Sat, 10 Dec 2016 04:20:15 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1528134</guid>
		<description><![CDATA[I have this meter. I love it for the price.]]></description>
		<content:encoded><![CDATA[<p>I have this meter. I love it for the price.</p>
]]></content:encoded>
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	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1425080</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Tue, 11 Aug 2015 09:48:27 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1425080</guid>
		<description><![CDATA[There seems to be now available a newer edition of the same idea:

DIY M12864 Graphics Version Transistor Tester Kit LCR ESR PWM
http://www.banggood.com/DIY-M12864-Graphics-Version-Transistor-Tester-Kit-LCR-ESR-PWM-p-986954.html?p=27131452996820140438

Additional Feature:

1. The square wave signal generator, optional built-in within the range of 1HZ-2MHZ stall square wave signal;
2.PWM pulse signal generator for 1-99% of the pulse width modulated signal;
3. The frequency meter function, can test 1HZ-25KHZ or higher frequency signal (in this case a slight decrease in accuracy)

Also in-circuit capacitance ESR measurements.

Manual can be found at 
https://www.copy.com/s/t%3AwBdnTSsdB3DBEmT6%3Bp%3A%252F12864tester.pdf%3Boid%3A34]]></description>
		<content:encoded><![CDATA[<p>There seems to be now available a newer edition of the same idea:</p>
<p>DIY M12864 Graphics Version Transistor Tester Kit LCR ESR PWM<br />
<a href="http://www.banggood.com/DIY-M12864-Graphics-Version-Transistor-Tester-Kit-LCR-ESR-PWM-p-986954.html?p=27131452996820140438" rel="nofollow">http://www.banggood.com/DIY-M12864-Graphics-Version-Transistor-Tester-Kit-LCR-ESR-PWM-p-986954.html?p=27131452996820140438</a></p>
<p>Additional Feature:</p>
<p>1. The square wave signal generator, optional built-in within the range of 1HZ-2MHZ stall square wave signal;<br />
2.PWM pulse signal generator for 1-99% of the pulse width modulated signal;<br />
3. The frequency meter function, can test 1HZ-25KHZ or higher frequency signal (in this case a slight decrease in accuracy)</p>
<p>Also in-circuit capacitance ESR measurements.</p>
<p>Manual can be found at<br />
<a href="https://www.copy.com/s/t%3AwBdnTSsdB3DBEmT6%3Bp%3A%252F12864tester.pdf%3Boid%3A34" rel="nofollow">https://www.copy.com/s/t%3AwBdnTSsdB3DBEmT6%3Bp%3A%252F12864tester.pdf%3Boid%3A34</a></p>
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	<item>
		<title>By: Raveesh H P</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1420907</link>
		<dc:creator><![CDATA[Raveesh H P]]></dc:creator>
		<pubDate>Fri, 24 Jul 2015 17:37:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1420907</guid>
		<description><![CDATA[Yes the problem was with the timpot.  After adjustment now the tester is showing the reading.  kindly accept my sincere thanks.

One more problem is, it is not showing the inductance reading.  if I connect an inductor it simply displays the resistance value of the inductance. what could be wrong.

Thanks a lot once again.

Raveesh]]></description>
		<content:encoded><![CDATA[<p>Yes the problem was with the timpot.  After adjustment now the tester is showing the reading.  kindly accept my sincere thanks.</p>
<p>One more problem is, it is not showing the inductance reading.  if I connect an inductor it simply displays the resistance value of the inductance. what could be wrong.</p>
<p>Thanks a lot once again.</p>
<p>Raveesh</p>
]]></content:encoded>
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	<item>
		<title>By: Tomi Engdahl</title>
		<link>https://www.epanorama.net/blog/2014/08/18/diy-electronics-tester-kit-m168/comment-page-1/#comment-1417402</link>
		<dc:creator><![CDATA[Tomi Engdahl]]></dc:creator>
		<pubDate>Sat, 11 Jul 2015 16:48:05 +0000</pubDate>
		<guid isPermaLink="false">http://www.epanorama.net/newepa/?p=26772#comment-1417402</guid>
		<description><![CDATA[I have not tested much capacitor measurements in-circuit.]]></description>
		<content:encoded><![CDATA[<p>I have not tested much capacitor measurements in-circuit.</p>
]]></content:encoded>
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