Exactly. That's a lot of loss of efficiency and a big increased in needless clutter and cost. For what?
With a HLG driver you need a PWM pin, a 2n3904 transistor and a base resistor for PWM dimming.
I program in various languages. I teach coding over the years. i learned CP/M assembly and languages not even used any longer thanks for the advice. Actually arduino, nodemcu, lua, and other languages are all based on C. actually arduino does quite well and runs quite well too.
Is efficiency that important that you will spend three times as much to build a 400w light rig. right now a 450w light costs about $800. this design costs about $400. I could live with that efficiebncy for half the price. Savings over time adds up to counteract efficiency. For the cost of a 200w light you can build a 400w light. So @Growmau5 uses this technique for his new canopy 12UV light and it will sell, and you can dothe same just like he did. Onl;y he does not have a 8 channel controller that has 8 separate time control channels,
No you need a circuit with a 10v power supply we have been over this too many times, please read the thread before offering the not working versions. thanks for the advice, but I use a dimming circuit that works much better and reliable.
Dude, no offence but that is simply not true. Gromax is right, I dim Meanwells exactly like that.
The HLG driver has 10volts over the dim lines. The 2n3904 transistor is a very quick switching transistor (good for PWM). It works. I tested it. I use it. My lights have a self build controller build in. The controller controls "lights on/off", "dimming of lights", "monitor temperature of cob", "rpm fans", "LCD display 20x4", "buttons". The controller talks to a self build webpage over WiFi. With that webpage it is possible to control as many lights as u want without cables. I build that controller myself with cheap components. The controllers parts costs about E25,00 20x4 lcd and buttons included.
there is a thread aboput various techniques. as in science there are many ways to achieve the same result.
no offense offered. there are many ways to achieve the same result.
you have a cloud based controller, I have a direct wired controller. I am sure you are happy with your controller.
This is also completely inaccurate. Two 200W HLG-H185-C drivers are $90 for 400W. That's less than $62+$40+$30=$132 for 450W.
I am happy with my controller. It is not for sale and i don't give away how i made it. At least no expensive arduino or expensive PWM breakout boards used.
I haven't found many industries implementing arduino for automation.. that's all I was getting at. If you really want to understand what is going on you have to understand assembly. No offense, have fun with these.
you might enjoy the conversation in the Grow room automation thread perhaps more of what you are doing, and you can ad to the mix
Interseting there is an entire line of PLC controllers with arduino's under the hood. Like I said we are looking at ESP8266, RPI3+, etc on the other thread.
I have 50 years experience, I appreciate your advice. I am not going to explain my background that is not unnecessary. Let's just say you are preaching at the wrong person, but you are more than welcome to tell me what to do, whether you know my background or not,
Than why are you here. keeping everything secret is kinda selfish. I came here and i share my knowledge, I share my code, I shared a DIY 6 channel LED Cont roller with code, parts list and it works A group has experimented with various transistors and diodes for 10v dimming. There are just as many ways to achieve the same result and all are correct, none are wrong. Just choices folks make, your choice is good for you, but you do not share so it is ONLY good for you alone. You can judge me, that is fine, that does not change me, just you. There are a good group of folks that we share what we are doing in the automation process, not trying to get rich, just not trying to go broke proving anything to anyone.
I know that there are many ways to achieve things. The best ways are the ways that work and are simple and cheap. A transistor and base resistor is cheap and simple. Cheap is always a good thing and simple things don't tent to break quick.