How to Build: Arduino Uno + Sensors + LEDs

Hiya all,
currently working on a large lighting setup and I'm kind of lost as to how to make it work.
Will be using an Arduino Uno unit.

Consider a structure of at least 1-2m^3 with several joints to which around 3-5 diodes will be attached. Either each single diode should be controllable individually, or the set of diodes attached to each individual joint independently from those attached to the other joints.
Further, I would like to record data (ex. ambient lighting sensor and or movement sensor) that feeds in to the Arduino, and depending on the data input, triggers certain lighting patterns.

I'm not exactly sure what I'll need, ex. whether even one Arduino unit will be sufficient to power all those LEDs and process that information continuously. The amount of diodes is at the moment not yet set in stone but will probably be in the direction of >30, maybe even 50. Ergo, the control in "groups".
That means, Ill also require a power source sufficient to supply the LEDs and sensors, but will have to supply that somehow to not fry the Arduino board (that can only handle up to 5V, right?).

Any and all help is appreciated!!! Slowly losing my mind.
Attached are a few sample designs of the structure and the 3D printed joints.


Sounds like you have zero hardware experience.

You’ll need to gain some experience in software and hardware.

Do some research into both, write some sketches and hook up some electronic circuits.

When you say diodes, you probably mean LEDs.

Google ‘Dot star’ and ‘Neopixel’ and ‘el wire’.

@DayanaTUB, please do not cross-post. Threads merged.

@DayanaTUB, stop cross-posting. Threads merged again.

Arduinos can power one LED, not much more. An UNO output sources a maximum of 20 mA. For larger number of LEDs a separate Power supply is needed as well as some kind of driver board, transistor, preferably a logical MOSFET.
Show us more data about the LED arrangement and a wiring digram.

So much missing information...

What specific type of LED ? (used to start current calculations)
MAX amount of LED's ? ( max current each x amount of leds = max load)
Max voltage of LED's ? (used to get the basic load total)

Other items you want to attach / control from the Arduino (see above and add to load total)

Some items will almost certainly need thier own PSU.

Most of the AVR based boards can safely run on 10 volts via the barrel jack.

Pins on the AVR boards are rated at a MAX of 40mA

As mentioned you might want to do some basic stuff FIRST before trying and advanced project.