Good evening everyone!
I want to build a LED controller for a 12V LED strip with the ESP8266 using 4 MOSFETs. The center 3 MOSFETS are there to controll the brightness of each color. The fourth MOSFET there to enable me to control the strips brightness/voltage going through or turning it off completely.
Is my sketch correct? I'm currently a bit confused about the physical/technical direction the power is going.
The LED is subsidiary for the LED strip rated at 12V.
Grateful for any input.
SZQY
Is my sketch correct?
No.
The fourth MOSFET there to enable me to control the strips brightness/voltage going through or turning it off completely.
It does no such thing.
The LED is subsidiary
No it is a substitute for an LED strip, which is one of the many reasons that fritzing is crap at sharing circuits with people who know how circuits work.
Grumpy_Mike:
No.
It does no such thing.
No it is a substitute for an LED strip, which is one of the many reasons that fritzing is crap at sharing circuits with people who know how circuits work.
Is there something I could make that work with?
I saw this: https://youtu.be/DkJ1f5UIuak?t=8m54s
and thought I could do something similar to that.
Just use the three FETs connected correctly and if you want to dim the overall colour just do it in software.
One way is to convert the RGB value into HSV coordinates reduce the V component and convert back into RGB and apply to the FETs.
Or you could try top switching the 12V power, but be aware you will get beating between the two PWM signals resulting in what looks like random flashes.
I am not sure how that video is supposed to relevant to your question.
