Wonder if someone can check this circuit diagram for me and make sure I am going down the correct route. I am creating a controller to control two sets of LEDs. One 24 strip, and one set of 12v uplighters.
I am using a Micro. This is what I have so far. The individual components are linked at the bottom. My background is software engineering so the diagram might not be perfect and hence why I am double checking. Note I have left off resistors, capacitors, MOSFETs etc for now for clarity as I am just focusing on power.
So I have a 150w 24v LED driver wired to the mains. From that I am using a step down converter to 12v to power the arduino and the uplighters. Then a buck converter to output 3.3v for the fussy ESP8266. Grounds all wired together.
Does this look sensible? One possible mistake I have made is the LED driver is rated at 150W. The LED strip was quoted at 14w per meter. However, what I missed was the RGBW version which I have is rated at 23W per meter. So the LED strip and downlighters are already taking me over 80%. Although only slightly and I doubt the Arduino and ESP board will draw much. But possibly I need a higher rated driver.
Yes, nothing wrong with what you are proposing. Personally I would power the 3V3 converter from 24V, not from the 12V, but this is a small point.
You need to be careful with the ground wiring, there should be a single connection point, or star point, with the ground wires all coming together at that point. That point is then your 0V reference for everything.
Yeah as I said above it was new software and it wouldn't do what I wanted. I should have deleted them
The ESP board is for WiFi connectivity. I know there are arduinos with onboard WiFi but I bought a job lot of micros a while back and these boards are cheap. The WiFi is to make it an IoT thing managed via AWS. I can then create an Alexa skill to control the LED.
I strongly discourage using the ESP as a WiFi "shield" for the Arduino. Just use a board with WiFi already on it, like the $5 Wemos D1 Mini.
What "control" do you want to do? Just turn the LEDs on or off? Then you don't need the Arduino. The ESP is more than capable of controlling the LEDs. (And it has WiFi already).
When you figure this part out, please check back here. I have dabbled with AWS skills programming off and on for the past year and find it absolutely bewildering.
Well that's my background so happy to help. I've been in software engineering for 20 years and although a manager these days still like to keep my hand in. Use AWS a lot at work and home.
Working on another project with a RaspberryPi to create a ring style door bell. It takes a picture uploads to an S3 bucket, lambda function the pics the picture sends it to Amazon Rekognition which does facial recognition. If it can't identify the person it will give a variety of information including gender, age, facial hair, mood. Working on the final part to send the picture to an Alexa screen.
So yeah give me a shout if you need anything specific
Why not work with a schematic capture program, there are many available and for free. The end result is we understand what you are putting forward without trying to correct all the mistooks generated by or left out by the drawing program.
Look at WS2811 or WS2812 programmable LEDs. I have a Christmas decoration with almost 1,000 LEDs that is controlled with one data pin on a Wemos D1 Mini. (Yes, purists, I use a level shifting chip for the 3.3V data).
The MSGEQ7 looks interesting. I could run the Xmas music into it to get the bandpass values to control the patterns of different areas of the LED array.
Your effort at a schematic is praise worthy, it get to show us the basics.
Can I suggest you abandon the CAD for the moment, and draw your schematic clearly with pen(cil) and paper.
Your mind and hand have more component symbols in them than any CAD.
Your diagram has many crossing wires and are any of the wires connected to the micro.
You need to label the pins on your components, "IN/OUT" on ALL pins is not very informative.
One small question. When I plugged everything in, with a blank sketch loaded on the board, the LED strip was all on. No problem I can analogWrite 0 to each pin to turn everything off as its start point. But is that the correct way to do it? What I mean is power and the aurdino will be "always on" ready for a command from Alexa. Does it need a relay to cut power to the LED strip when not in use, or are the MOSFETs on each colour channel doing that anyway?
