Tools for diagnosing intermittent connection issues?

[LarryD]

Welcome to the group.

• Here are some things suggest you follow when prototyping.
  • Use Dupont ended jumper wires with solderless breadboards.
    Lean to make these jumpers yourself so you can confirm their quality.
    Use silicone insulated stranded wires. 26/24AWG even 28AWG. check out the strand count of these.

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Dupont Connector Crimping This was covered a while back and is now duplicated here. My favourite crimper is: Platinum Tools 16801C Open Barrel Contact Crimp Tool Clamshell [image] [1] [2] These are what I use with percentage of times I use them: [3] First crimp the conductor [4] Finally crimp the insulation [5] You might have to remove some insulation with flush nippy cutters and tune the crimp shape with needle nose. The Platinum Tools 16801C Open Barrel Contact Crimp Tool…

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Dupont Jumper Wire Management. Using Binder Clips to hold wires was discussed a while back. There is one drawback in using these clips. As wires are removed from the clip, the remaining wires become loose. These wires often fall out of the binder clip. The method below shows how remaining wires are prevented form falling out of the binder clip. [image] [A] [B] [C] [D] [E] [F] [G] [H] [I]

• When using prototyping PCBs, solder connections, here is a link for you to review. Post 1398.

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Prototype Board Tools and Prototyping Board Construction. EDIT Rev 1.10 ( Thanks to PerryB ) The following post consolidates several past posts. Two PDFs are attached below. Tools For Making Prototype Boards discusses making tools used in the second PDF, Prototype Board Construction. Tools For Making Prototype Boards.pdf (3.7 MB) Prototype Board Construction.pdf (5.8 MB) [Prototyped Board Wire Soldering] See also:

• DVM is a must have.
• A simple logic probe like this can quickly identify problems.
  D2 is not needed, it can just be a wire.
  The two probes can be joined.

• Wiring neatness is something you should always strive for.

• Avoid high air wires as they can more easily be disturbed.

• As with everything, the more you do the better things turn out.

• Do not plug components into solderless breadboard holes with leads larger than 24AWG solid wires.