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How to offer job for board and LED design?

Former Member

I am very sorry if this is not the correct place for this question.

 

I am a machinist and manufacturer of a motorcycle throttle lock and recently purchased some boards for displays that read a pot from an electric bicycle throttle and use that information to light up a series of LEDs that are mounted on the board. Basically it is an RPM gauge.

 

Unfortunately the LEDs are very dim and I am hoping to have a few boards made that I can use to light much brighter LEDs. I know 3D design, CAM, G-Code and machining, but electronics are a foreign language to me. There are a few other design considerations and constraints but I was poking around and saw the Arduino Nano and love the small form factor since ideally this needs to fit into a small mirror housing.

 

Free time isn't something I have in large supply and would prefer to pay for help to design vs. buying a bunch of stuff and playing/testing/learning as I don't have any other known usages for digital boards and learning to program them.

 

I appreciate anyone's time for reading. Perhaps pointing me to information or someone interested in doing the design.

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  • I agree with Andy, it should be straightforward to swap the LEDs out. Those arrays are a bit tricky to desolder but there are tools for that.

    There is also a single resistor (two in your case since the board has two ICs) that determines LED brightness, see the LM3914 datasheet for details, so

    there is an opportunity there to increase the brightness provided the LED display can handle it. It may be a slight improvement for near-free, just the cost of

    the resistor.

    Also, you didn't mention, but does the front panel by any chance have an optical filter? (EDIT - I see from the last photo there is no filter).

    There are red or neutral (gray) colored filters that are often used. It will add to the cost though.

    The gray ones are excellent, and can really enhance the visibility of the display. I personally don't use LED displays without a filter, it could be considered near-essential. It is a piece of plastic which can be cut and glued in place.

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  • I agree with Andy, it should be straightforward to swap the LEDs out. Those arrays are a bit tricky to desolder but there are tools for that.

    There is also a single resistor (two in your case since the board has two ICs) that determines LED brightness, see the LM3914 datasheet for details, so

    there is an opportunity there to increase the brightness provided the LED display can handle it. It may be a slight improvement for near-free, just the cost of

    the resistor.

    Also, you didn't mention, but does the front panel by any chance have an optical filter? (EDIT - I see from the last photo there is no filter).

    There are red or neutral (gray) colored filters that are often used. It will add to the cost though.

    The gray ones are excellent, and can really enhance the visibility of the display. I personally don't use LED displays without a filter, it could be considered near-essential. It is a piece of plastic which can be cut and glued in place.

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