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  • 05/01/2021

    This is how you connect it up - The 5v supply goes to the 2 pins marked J1. The probe would be connected to either of the 2 pins marked B or C. You need to power it from the same supply as the circuit under test, or at least make sure they have a common ground. The little jumper supplied seems just for testing. Pin A is at 5v , so if you connect it between A and B it will show a H to denote High . Pin D is connected to 0V, so placing the jumper between C and D will give you a L which denotes Low. Simple! A very simple but useful bit of kit when testing logic circuits - it works well on 5V stuff but I haven't tested it on 3.3V, and doubt wether it would work on that. Hope this helps someone!

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  • 06/03/2021

    Simple but functional TTL logic probe for static logic. I will study how to modify it to be able to use it for CMOSl ogic at higher voltages too.....

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  • 16/11/2020

    Thanks for the delivery it was a decent product I attached the photo which shows all components which are okay comparing with the kit spec later I will assemble it to see how it will operate. thanks again

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  • 20/09/2021


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  • 30/08/2021

    Good kit. Works well and is of good quality components.

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  • 01/08/2021

    Great kit at a good price.

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  • 29/07/2021

    Kits reached me within the 30 day delivery span as stipulated. Good value for money for the electronic hobbyist.

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  • 10/03/2021

    i haven't even received my order😭😭💔

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  • 01/03/2021

    It works

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  • 27/01/2021

    Looks good. Now, you just have to solder!

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