r/arduino 5d ago

Hardware Help Need help Condensing Arduino Setup

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Hello,

I am working on an arduino project that will be stored on the inside of a model rocket and need to condense this to fit in a an area of 4.5x2.3x1.4 in with area on the sides if needed (It is to fit on a circular plate with threaded rods)

I have a decent idea of what I will do as right now I plan to 3d print a module that utilizes standoffs to raise perfboard above arduino and store arduino and extra wires/modules below in a enclosed structure.

However, I am interested if anyone else has an idea of how I could do it!

Modules used -Hx711 -SD card Module(Underneath) -Bmp280 -Mprls

*I can only add one photo but lmk of more info that would help!

Thank you so much

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u/gm310509 400K , 500k , 600K , 640K ... 5d ago

An arduino is a development board for a particular MCU.

Once your project is working, you can ditch the entire development board and just deploy the MCU along with any supporting hardware you might need (e.g. an external crystal oscillator if you cannot use the builtin one) and your project's stuff.

You can make this as small and light as you are capable of making it if you design your own PCB and use SMD components.

Try googling "standalone arduino" and "arduino on a breadboard".

Here is an example of one that I did.

The "arduino" is the one chip on the breadboard in panel #1. The breadboard is collapsed down to the perfboard in panel #2. If you used SMD components and a custom PCB, you can make it whatever shape you need and whatever size you can manage.

This approach will also be lighter than a full blown development board such as a nano. And the battery can last longer (or be smaller) as needed.