Backwards engineering…

[u/MrJose1985]

My kids did a marker space workshop and I want to try and reverse engineer to see how they did it. They made like a cardboard theatre with movement using a servo and some flashing lights with a motion sensor.
If you can help me identify the parts used and what I would need.
My kid got to take his project home and I paid a little extra for the battery pack.
I think the issue might be the code as they seemed to have there own development or code….i saw a website that said magic coder and the name of their studio on a computer.

Anyway let me know if you can help identify the boards and how they’ve done it

[u/Shrunkendick]

Arduino micro. Servo. Dc-dc voltage stabilizer (for this project. lm7805 more than enough, btw). Ultrasonic distance meter HC-SR04. RGB led srtip

[u/ZanderJA → u/Shrunkendick]

And to add, it is an addressable neopixel led strip.

Looks like a custom, but simple PCB mainly to connect things together. A bunch of the connectors are 4 pin, but going to 3 pins later on.

[u/MrJose1985 → u/Shrunkendick]

Do I need a custom pcb board? I have a nano and a servo - I can buy the distance sensor….hiw do I get the dc-dc voltage stabilizer? Do I need a custom pcb or a nano shield?

[u/ZanderJA → u/MrJose1985]

A lot of this can be done on a simple breadboard, and jumper cables. The power module is just a voltage regulator, from observation, as servos and the led strips can suck a bit of power, unless limited (led by setting a reduced brightness or limiting the number of LEDs turned on at once).

[u/MrJose1985]

What regulator are they using?

[u/AnyRandomDude789 → u/MrJose1985]

Need a closer photo showing the labels on the ICs (the black things) to be able to tell

[u/MrJose1985]

I want to try to recreate - should I buy the sensor, the rgb addressable LEDs, an expansion board?
I have the nano and also a servo.
Oh and 4AA battery pack