Controlling high power (or a high number of) LED's with an Arduino
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- Опубликовано: 14 окт 2024
- A while ago I posted about my bench lights, and have gotten a number of request for schematics and code..
Read more and get the code at: thecustomgeek.com/?p=159
Easily the best video I've seen yet, walking through EXACTLY how to utilize external power for devices that can't run off of the Arduino's power output, but still controlled by the Arduino. Well done!
very good explanation and yea the collector and emitter are backwards ( BCE)
thanks
Man, this was one of the best explanations I have seen on youtube regarding Arduino and higher draw LEDs.. This will help me finish a project im working on! Much thanks!!
Thanks for the video! I learned a lot about using LEDs with Arduinos. This is going to come in handy for a project I'm working on.
Unrelated, but people generally wear their watch on the non-dominant writing hand so you can check the time easier.
Thanks again!
Thanks for the great tutorial. I am making an ambient light for my monitor and this tutorial helped a lot.
This video was a massive help for me and my first real project. Thank you so much!
Hello. I was always worried of drawing too much current from Arduino Uno and thanks for your tip on this. Using an external power supply solves it.. THX and look forward for more.
This thing explains everything so well! Great job!
Hi, thanks for the amazing video. I have a question, did you have to use a different Voltage for the Red on the COB LED? I'm working on an RGB High power LED to work with Arduino, but I think the Red LED may require a lower Voltage than the Blue and Green. I'm wondering if I will have to use a voltage converter (to lower) just to connect the Red or not. Thank you!
Good day sir! Red generally runs at a lower voltage, so a larger resistor would be necessary. There are a lot of resistor calculators online to see what resistor you need based on the voltage and current of the LED. Have fun!
When trying it out on a TIP 120 it worked connecting the emitter to ground and the LED to the collector. I don't know much about the topic but just in case it didn't work for someone.
Looks like he swapped collector and emitter in his whiteboard diagram.
Gonna try this myself. Don't really understand transistors, so I'll try both ways and see what works. Got lotsa salvaged parts in my junk box....
7:40 You can use USB to upload sketch while using high-power power supply for the consuming circuit
Thank you for posting this and explaining it so well.
hey there just saw your channel and this awesome video best one out there
got a question to you sir
am building my KITT car and wanted to build my own scanner and i build a basic one already tested and works good but now its time to build one where i can be using 12v leds you can find them on license plates ect in cars
could you pls help me out here am thinking to use a tip120 and a resistor but if you could make a video or a blueprint for me i would be thankful Dave cheers
Great video, thank you! I am wondering if there is no need to use a Constant Current Driver such as the LM317 to regulate the power for the white LEDs?
You have a way of making this stuff look actually doable by morons like myself. Thanks for going to the effort of making this video. I've got a bunch of components on the way as winter is arriving and I plan on learning how to make simple circuits.
you answered my problems at 1:55 Thank you!! great video
Hi, nice tutorial! Just what I was looking for. As a novice I do wonder how it would work with a 24v power led. Do I connect the positive of the led to the 24v positive with a resistor in between? If so I reckon that 1k will not be enough right? I've tried connecting the Arduino negative to the 24v negative and the power led positive to the Arduino 5v. It works but draws too much power, causing my 3.2" TFT to shut down.
Thank you very much for the video. You demonstrated exactly what I was questioning. Although, what I'd like to do is simple add to existing LED displays, my wn larger segments, not using Arduino at all. I worry about what to do with ground from external power supply. How do I return the ground signal safely to original smaller device?
What's the difference in the schematic of using a AC/DC power supply instead of a battery? Just hook it up to the negative post of a barrel plug from the DC power supply?
Great video, very well explained.
HI, nice tutorial. If I wanted to dim a high power LED, using external board power and external power for the LED also to isolate the Arduino from current draw.. maybe on a POT or automatically, what would be the best way to modify this circuit?
I would like to build a low-voltage LED lighting system for my home, similar to this product: @ I wonder what will be required to home-build this from scratch. Do you recognize that driver board?
Thank you, this clears things up!
thanks for your sharing, from France
I couldn´t find a TIP122 at my local electronic shop, will a 120 do the trick? Or maybe a IRF520 mosfet would work even better?
Very helpful video! Thank you!
Is there a solution that has a bunch of these transistors in a compact form factor, maybe an integrated circuit or an Arduino shield? Looking to do a project and switch 12 separate devices ON/OFF, with an Arduino.
Hey! Is it possible to use the same same connection with multiple 3 whatt leds(around 20 or 30 leds)?. If no how do i do it?
It is possible to use the same connection, you just need big enough wires and MOSFET to handle all of the combined wattages (60-90 watts total) It may be better to control groups of 10 with a single MOSFET for each group.
@@TheCustomGeek thankyou!
very good explanation , thanks a lot
Does this also limit the current going into the leds? I want to drive and be able to my 10W RGB led, each colour is rated for 300mA, is the tip122 suitable fot this?
Works like a charm, thanks :)
Hi, this was very helpful! I'm trying to figure out the schematic for a project I'm working on, do u think you could help. I can send you a message with all the details and components going on. Its electrical in a costume. Thanks!
When wiring 100W LED's should they be parallel or series wired ? Thank you.
Thanks a lot! Its a very helpful video!
AWESOME VIDEO thank you!
so thats how iron man makes his chest light up
where you mounted your component what name is that thing who color is fully white ? name tell me?
i have used this set up but my lights are not as bright as they should be how can i fix that?
what would it take to go from this to controlling 100 meters of rgb strip ;ed's?
Thank You
could I use this same circuit using 24v instead of 12v? I want brighter LEDs on a 5m strip aand I think 24v can run a higher wattage over 5m
hi great video, can i also incorporate bluetooth module into this scenario. I f so, can you give your input how.
What is the maximum amount of power that a TIP122 can control? I have a 24v, 3.5A (continuous) DC LED light I would like to control via PWM. Can I safely use a TIP122?
Hello, the TIP122 can do 5A continuously, but you might need a heatsink for that kind of operation. :)
@@TheCustomGeek Thanks for your reply.
Good work. Can't you do this using UN2003A ? Thanks.
Are these MOSFETs?
Thank you. you are amazing!
Could you tell me if this setup would work to dim a 100w LED COB (Cheap Chinese eBay buy) - I have a Mean Well 100W LED driver (AC 100-265 | 50/60Hz & DC 20-40V | 3A) I have nearly every flavor of Arduino board- but lately have been going to the Wemos D1 as my first choice due to it's built-in wifi
or would a higher power darlington be necessary: www.ebay.com/itm/BU323AP-Transistor-Lot-of-1-A-B4-/162081181172?hash=item25bcca8df4:g:HdwAAOSwMN9XQ6BU - this one is rated at 150W
AWESOME, thank you
Great video
Thanks! I have switched to mosfets though, IRLB8721PBF does an awesome job.
thanks for this video. It was really helpful.
leds can be one or two or they must be 12?
do you have to run a 1K resistor?
or 2.2k
Thanks for the vid, it's very informative! :D
I have four sets of led light consisting of 7 LEDs, 28 LEDs, 32 LEDs and 36 LEDs each 20mA with a Vf of 2.2, using 9V for power source. Control power output Iusing a relay board and programing through the Arduino board. When I use ohms law I get figures that are higher than the input voltage. When I use the calculators I get too much load, but this doesn't look correct. I would like to alternate the first three sets of LEDS and have the four set be a slow fade. Please help!
nice explaination bro
thankx
does the transistors heat up when the load is connected?
Rodney Yrureta Depends on the load you’re connecting, different transistors can withstand different powers.
Thank you.
Why use the transistor for the light running off 5v?
Does it waste battery ? How much does it take ....?
how du you calculate the value of the resisters for the white leds
Gracias!
Is there any board that can do 1 millionth of a second?
arduino can delay 1 nanosecond so... yeah I guess?
16mhz or 16 mega hertz or 10,000,000 operations per second
or you know a variable resistor would work fine
Why not just use a MOSFET?
I have now, I use IRLB8721PBF and it works great, handles lot of power. ⚡
Or you can use a $2 4 relay form eBay.
??????
Wow der is aber schlau! Sowas hatten wir zu DDR-Zeiten schon im Kindergarten!