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This thing is better as arduino and only $1,78. https://m.nl.aliexpress.com/item/32468324806.html It has: • 4MB flash memory • 802.11 b / g / n • Built Tensilica L106 ultra-low power 32-bit micro MCU, clocked at 80 MHz and supports 160 MHz, support for RTOS • Built-in 10 bit precision ADC •...

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.

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"...

With a HLG driver you need a PWM pin, a 2n3904 transistor and a base resistor for PWM dimming.

Where i live, i pay too much for elektricity, for me it counts that i need brightest lights for my KWh. If u have your own elektricity suply or pay only little money for elektricity then cheaper COBS with lesser efficiency maybe better for u. Argueing is senseless. :hug:

Shenzhen KingBrite Electronics Co., Ltd.

Or 2 100K potentiometers for 2 drivers.

This is a prototype lamp with an esp8266 WiFi module and dimmer (2n3904 transistor) built in. The programming/dimming/datalogging happens in a yet to build controller. Now i use my laptop as controller. No serial/i2c/spi cables needed. Only power plugs. the yet to build controller can control...

A quick view on my workbench.

Kingbrite is good business. I think they do not want to pay Alibaba and therefore their price is low. I ordered twice and payd with Paypal. Great stuff.

Happy new year to u all. I am boozed out with friends now but all the guys and girls in America yet have to start their party's. Have a good and safe yearchanging.

Will not work. Do not try this at home or where ever. I tried to write down why u should not do this but i don't know how to explain. It is not a good idea to do this. Please film it if you are going to do this anyway. It is insane.

Huh weed? I do strawberrys

So what i learned is, don't stare into leds.

If i stare into Cree CXB3590CD 6500K at 1400mA i can still see things but everything is green for some minutes.

What arduino are u using? The arduino pro mini 3.3V works with 8Mhz instead of 16Mhz for the 5V arduino and may be more stable. It is easier to use with the raspberry because there is no need for level shifting between 5V and 3.3V.

Probably you already know this as the RIU automation specialist but maybe not The raspberry is famous for corrupting of sd cards. Use the sd card only for booting and use a USB stick/drive for the read/write operations. Also make sure the the pi shuts down properly and provide enough current to...

No driver so i am going back in time. Crazy times back in 1993. Illegal house party's in Amsterdam when XTC was so new as partydrug that it was still legal. Good vibes and lots of a new kind of noise.

I ordered some stuff at mouser. Today the package was send but the HLG-185H-C1400B was not send because there was a stock difference. They can send one on 3 february 2017 so i cancelled that driver. Now i cant find another driver. That is a pitty. :cry::roll:

Is this one too expensive? https://www.conrad.nl/nl/mean-well-hlg-600h-54b-604-w-max-1439328.html