Wi-Fi LED strip controller that works well
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Wi-Fi LED strip controller made with few goals:
Look at these little babies: esp32-c3-mini: riscv core wifi+bt and a bunch of security features. This module is the heart of the new revision for volumetric one led strip controller
Source is open now.
More boards are ready and tested. Will list them on tindie.com by the end of the week
The controller has a case now. It's 3d printed with two colors to highlight connectors pinouts. Lines also emphasize two buttons on the top surface.
The button's connector on the side is labeled too.
Simple rounded corners don't look in all lighting conditions because of curvature between the circle part and flat side jerks. And the way to the perfect shape is long. Here I used Bezier curves that make curvature smoother.
The case and accent color may vary.
First board hardware is finished and it works in full range of voltages from 5V to 24V. On the picture it's loaded with 100W load at 24V.
Components required for DC-DC and support of 24 volts are not delivered yet. But everything else is here and I baked first couple boards. Blue wire is a temporary shortcut to make tests possible.
Board stays cool when loaded for 7A (85W). For brightness regulation I use LEDC peripheral of ESP32. It can handle 512 levels for smooth level changes. Base frequency is 80KHz and noise is inaudible for humans.
Boards were delivered today and look good so far. Components are still on the way, so first boards for the tests will be by the end of the week.
At the same time first version of the case was made and it fits well without any screws.
The board was sent to production at JLCPCB and components were ordered. This batch is designed to use both components sourced in China, like XL1509 DC-DC converter and western ones, like MIC4127 MOSFET driver.
Depending on how successful will be this initial design after first tests, up to 30 board will be produced in this batch. Do you want one to try?
Hello,
I attached current schematics to the post,
Output terminal is GND_1 | V+ | GND_2 | V+
It is made this way to control either 2 independent single color LED stripes, or to control one with Warm white/Cold white LEDs
Sergei Silnov
burkethos
Justin Maynard
fruchti
Matt Meerian
Very cool! I have been wanting to create something similar — a small but extensible board that combines the ESP32 and regulator for LED power. I notice the LED header is 4-pin. Which LED IC is it designed to work with?