B.pad PCB questions

Shop Forums QnA B.pad PCB questions

This topic contains 3 replies, has 2 voices, and was last updated by  flashteker@gmail.com 5 years, 9 months ago.

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  • #989

    Lindee
    Participant

    I was looking at getting the b.pad PCB for a number pad I want to make, but I want to be sure I get everything right with the order.

    First, can you confirm that the controller, usb port, etx are not soldered onto the PCB unless I select the option? How difficult is it to solder these parts on myself?

    Secondly, are stabilizers required? Will the keys depress fine without them? Is it only really needed if I am plate mounting my switches?

    Thirdly, there is a selection for diodes and resistors; are those only needed if I am adding lighting to my project?

    Thank you!

    #991

    Hi

    Thanks for your interests in our products.

    Here are my answers to your questions.

    1. You are right. If you don’t choose the soldering options for each service, a PCB comes out unsoldered.
    How difficult…. It depends on your ability. But I recommend you to solder them by yourself, because it would be quite pleasant experience. In the while, Soldering Controller parts for a PCB is quite difficult. so I hope you to choose option “Soldering Controller parts”.

    2. Stabilizers are necessary even though you use B.pad(Tenkey pad) which requires 4 short stabilizers. It doesn’t matter which type switches you use, pcb-mounted or plate-mounted ones.(We offer only PCB mounted ones)

    3. Diodes are required for the switches, so it’s must-have.
    Resistors are for in-switch LEDs. Unless you don’t want in-switch LED, you don’t need resistors.

    Thanks.
    Hojin.Yi

    #992

    Lindee
    Participant

    What is the difference between the two diode choices?

    Is there one that’s a better choice than the other?

    #993

    In the point of functionality, there is no difference between diodes 1N4148W and LL4148.
    But in the point of looking, they are a little different.

    Both of them are SMD type diodes, not dip ones.
    – dip type diodes have 2 long legs going through PCB holes. But SMD type ones don’t.

    Anyway, someone says that 1N4148W is easier to solder than LL4148, though it’s not my opinion.

    So I can’t tell which one is better.

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