Comments on: PIC Based Logic Probe http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/ Microcontrollers Electronics Hobby Thu, 02 Sep 2010 04:32:54 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Steven Moughan http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/comment-page-1/#comment-740 Steven Moughan Thu, 15 Nov 2007 03:29:55 +0000 http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/#comment-740 The 5v1 Zeners are to clamp the test voltage to ~5.1v to -0.5v on the off chance that its used to measure something say at, 12v which would normally be disastrous for the PIC... The 5v1 Zeners are to clamp the test voltage to ~5.1v to -0.5v on the off chance that its used to measure something say at, 12v which would normally be disastrous for the PIC…

]]> By: Steven Moughan http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/comment-page-1/#comment-739 Steven Moughan Tue, 30 Oct 2007 00:35:47 +0000 http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/#comment-739 Whats the software you used to do the stripboard layout? Or was it just paint or something? Whats the software you used to do the stripboard layout? Or was it just paint or something?

]]> By: Steve http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/comment-page-1/#comment-738 Steve Mon, 22 Oct 2007 01:00:06 +0000 http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/#comment-738 Very cool! I wonder what the 5.1v Zeners are for. They're in the schematic, but not in the built devbice. I notice they're wired as pointed away from ground. Is this to limit the voltage to 5.1 volts if the circuit comes reversed-biased by the equipment under test? Very cool!

I wonder what the 5.1v Zeners are for. They’re in the schematic, but not in the built devbice. I notice they’re wired as pointed away from ground.

Is this to limit the voltage to 5.1 volts if the circuit comes reversed-biased by the equipment under test?

]]> By: Alan Parekh http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/comment-page-1/#comment-737 Alan Parekh Sun, 21 Oct 2007 07:14:53 +0000 http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/#comment-737 Nice documentation! Nice documentation!

]]> By: pK http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/comment-page-1/#comment-736 pK Mon, 15 Oct 2007 11:46:40 +0000 http://www.uchobby.com/index.php/2007/10/13/pic-based-logic-probe/#comment-736 Weel done and very welll explained! Another great article here, keep on the hard work! Weel done and very welll explained! Another great article here, keep on the hard work!

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