Current will ALWAYS be regulated by varying the output voltage is not true because varying the resistance (load) regulates the current too.
Leds are variable resistors. They heat up and/or cool down and that changes their resistance.
Gaat dit over ego’s of wat. Tering hé, tyfus hé. Waarom willen jullie elkaar zo graag overtuigen? Iedereen die niet naar school is gegaan moet maar vertrouwen op zijn eigen bevindingen. Eigen schuld dikke bult als er iets fout gaat.
Google translate version.
Is this about egos or what. Tering...
Why argue about science?
“Arguing About Science” is an outstanding, engaging introduction to the essential topics in philosophy of science, edited by two leading experts in the field. This exciting and innovative anthology contains a selection of classic and contemporary readings that examine a...
If you have a b version meanwell hlg driver you can use a transistor as switch between the dim+ and dim- wire. Use a PWM signal from an arduino or wahatever to drive the transistor.
Make sure to use a transistor with fast switching capabilitys like a 2n3904 and a proper base resistor.
No freeze is an important improvement. What is this thing? It can change percentages indeed and it is wireless and expensive?
What is it, and what does it? The thing with the LCD display looks nice fabricated. I want to show this at the university.
reboard#1 is the board with the 2 rotary encoders. In the pictures is a prototype. On the reboard#1 are schmitt triggers and CD4013 D Flip-Flop‘s to make it easy to read the output from the rotary encoders.
http://www.bristolwatch.com/ele2/rotary.htm
You can choose in a setup menu if you want...
Wow. I am building my own ESP8266-12F device.
My one has 12 bit PWM dimming (4096 steps) for HLG drivers. Internal clock with battery. Connections for display, camera, control knobs, 5 relais, 5 fans and temperature sensors.
It keeps the settings and time in case of power failure or lost WiFi...
This is my controller pcb. It is made specially for the Fyton Sun288 light fixture. The pcb is designed by me and made by seeedstudio (10 pcs for $4,90 empty pcb)
It can switch 6500K leds, 2700K leds, uv bulbs, fans for the leds and 2 extra relais for wall outlets on the light fixture (heater...
Hahaha. Giggle. I have my own product to place from the west Frisian islands (netherlands). Knetterstoned growlightning and multicontroller. I better choose the Google way then the riu way. I dont like unnecessarly fighting. PS I dont like the copy copy copy style of Vegaswinner.
Hello all. I am a ma'am from the Netherlands who grows 4 plants at a time because the police is a pain in the ass here. I burnt out an expensive blurple led growlight from "led flower growlights". Hopefully this forum can help me to build a DIY led growlight. Greetings from the west Frisian...