LED Array power setup

Other Hardware General Electronics
1

I want to make a setup of 5 lines of Led diodes, each line will have 5-20 led diodes on it. Each will light up one second after each other then stop until a button is pushed to start the sequence again.. There could be 50-60 10mm 3v led's.
My question is what type of power will I need to run this?

2

Are these standard LED strips or individually addressable LEDs in a strip ? It sounds like the former

Either way, what is the maximum number of LEDs that will be on at any one time ? How much current does each LED take when turned on ?

Given those 2 numbers it is easy to calculate the total current required

3

It would be a set of individual Led's, max on at a time would be about 40.
These are what I'm looking at using (link below)
We are trying to simulate a blasting pattern in a mining tunnel.

https://www.amazon.ca/Transparent-Intensity-Lighting-Electronics-Components/dp/B07RB5FG8W/ref=sxin_23_pa_sp_search_thematic_sspa?content-id=amzn1.sym.af2cee9e-0b02-4061-8365-59bc1bdb8e36%3Aamzn1.sym.af2cee9e-0b02-4061-8365-59bc1bdb8e36&crid=3LRMBS9O1G1AT&cv_ct_cx=10mm%2BLED%2BDiode%2BLights&dib=eyJ2IjoiMSJ9.5Myi5FxPip58iXYXzfRHhGFMvDI-u89KIO9cVXDyszP8fowcyywX64qHgZL68w7JTKnBtASywTTYbnvSjRIY2w.oERbnY_m2JJ3RuXIegtbtTvvb0RY-ue7w_iwdz4vNLI&dib_tag=se&keywords=10mm%2BLED%2BDiode%2BLights&pd_rd_i=B07RB5FG8W&pd_rd_r=4476771d-9da4-47a2-8c18-a59b32b6c6d3&pd_rd_w=batvb&pd_rd_wg=zJFHX&pf_rd_p=af2cee9e-0b02-4061-8365-59bc1bdb8e36&pf_rd_r=05YMA9VN9HNBSP2P3QYN&qid=1713024938&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sprefix=10mm%2Bled%2Bdiode%2Blights%2Caps%2C173&sr=1-4-acb80629-ce74-4cc5-9423-11e8801573fb-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9zZWFyY2hfdGhlbWF0aWM&th=1

4

20mA x 40 * 800mA, so a 1 Amp power supply will do it. And you'll driver circuits. An Arduino can't directly power that many LEDs.

You'll need a way to control/address the LEDs.

If you don't already know this, LEDs are "current driven" and normally you need a current limiting series resistor for each LED.

Or, there are LED driver chips that have the current limiting built-in.

The simplest solution is WS2812 LEDs (or similar). These are serially addressable LEDs that come in strips or individually. They have a built-in driver and you can control an almost unlimited number of LEDs with one data/control line. (The software is complicated but there are libraries to take care of the hard part.)

Or, I have a project that uses 6 daisy-chained MAX 6968 chips to control 48 LEDs with just 3 Arduino output pins. (There are other similar chips.)

5

Could I use these?

https://www.amazon.ca/25Pcs-Light-Source-Aluminum-StageLight/dp/B0933MYYQJ/ref=mp_s_a_1_4?crid=HSRA3XO2K44M&dib=eyJ2IjoiMSJ9.7ErLHYWXlIHiFvRU0Vqt2xJvc-hwYYjZ8wF48dZBK6H7bU-t1cEmZuADlDvuZksntJsZREJa3hMOSHKbIHKBvdBuVXJUK8UOud9p2XjqQ-lMPUJraWLuJmTwvA3S1mWeYyCsFTW_8m8wtxMqXDplK7CfQcU1jTfNmYBgNrAC8jB5zpn3eTd7oXgmhXAxJgMi3p9EfZsnbHPjmkw8yrXgbw.fCl515-gbBiyY2RRJ3mNlGyor5INMYEINifp8Eg4obU&dib_tag=se&keywords=led+chip&qid=1713106627&sprefix=led+chup%2Caps%2C131&sr=8-4

6

Yes you could, if you don't mind the amount of wiring required

What exactly is the application for these LED strips and how far apart will the LEDs in each strip be ?

7

I am making 4 strips.
The first strip will have about 20 lights
Second 15
Third 10
Fourth 5
The light would be about 6-8” apart.

This is going to simulate an underground blasting pattern. So strip 1 would flash for .5sec and the strip 2 etc.

8

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.