Multiple gnd connections to one GND pin

Projects General Guidance
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I’ve been too active on this forum lately.. and apologies if this question has been asked before

Anways, in my project, I will be using a perfboard to create the basic circuit with an arduino Nano, Piezo Buzzer, MPU6050, BMP280, microSD and a battery. Thats 5 connections that require ground pins, when the arduino nano only provides 3 (one ICSP pin).

Upon researching, I have come to the conclusion that the best solution to this would be to Splice multiple of the gnd wires together to one common gnd wire and use that (Solder multiple wires together and connect them to one GND pin). Given my beginner level in this field, would this be the right way to go?

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Given that you are using perf board then why not use a section of that with multiple connection points as a GND bus bar and connect the components to that and the bus bar to a Nano GND pin ?

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I’m sorry, but what does a bus bar imply? As far as i know perfboard connections are not electrically connected like breadboards, Could you explain how id go about doing that? Sorry for the confusion..

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You connect all your ground wires to adjacent holes, bend the wires underneath to touch the next ground point and solder them there.

Stripboard makes this even easier!

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That's right, but you can connect them yourself, can't you ?

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Ah, so strip boards are electrically connected pins, like breadboards? Can i cut strip boards to required sizes?

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Of course you can cut stripboard to the size required

I am intrigued what use you thought perf board might be if you could not join pads together and only connect a single component to each pad

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There are different perfboards. Some have single holes, some have groups lf holes, some have lots of holes into the same copper strip.

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I agree. "Perfboards" are boards with perforations. Stripboard and tri-pad board are types of perfboard, but they are not usually called perfboard.

Perfboard - Wikipedia.

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pdbonly
pdbonly1116×1779 179 KB

Stripboard based Power Distribution Board -- with 470uF board level filter, .1uF bypasses at each terminal block, and RGB LED

Parts are ~$15USD, takes under an hour to assemble, soldering required.

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Okey. Here we say "Veroboard" for all of them.

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Looks like good and handy stuff.

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Is. Coupled with a terminal shield it makes all cpu end connections solder free screw terminals. Easy to assemble, reliable, repairable. Whats not to like?! LOL

20230327_180833
20230327_1808331920×1167 168 KB

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Alright, So in conclusion my best bet would be to use a stripboard where all the horizontal connections are traced with copper to allow for connections? So if i plug my arduinos GND pin into one copper trace, all horizontal copper traces become GND pins? And where i dont want any electric connections (ie. Between the pins of the arduino, and to make space) i can use a handheld drillbit to get rid of the copper traces?

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