Viktor's DIY Blog

beep... beep... blink... blink...
 
Viktor's DIY Blog

Building a Smart 4-Channel PWM Controller with ESP32 and High-Efficiency MOSFETs

This 4-channel PWM controller uses an ESP32 (for smart control), TC4427 MOSFET drivers, and CSD17573Q5B MOSFETs (for efficient switching). It delivers precise, adjustable power (up to 18V/10A per channel) with minimal heat loss. Features include WiFi/MQTT control, local button inputs, and gamma-corrected LED dimming. Designed for a 12V LED spotlight, it’s also ideal for motors, heaters, or lab supplies. Fully open-source—schematics, firmware, and 3D-printable enclosure files are available.

Tuya PIR Sensor Conversion to Open Source – Walkthrough

This time I would like to walk through the “open source-ification” of another Tuya device. The reason for this is that this device requires a bit more effort and tools to program. The concept is the same: The difficulty lies in the fact that this device has a different architecture. …

Tuya WiFi-IR Remote Conversion to Open Source – Walkthrough

In this article I show how to convert a Tuya WiFi-IR Remote to use open source software. The reasoning and the procedure is the same or very similar to what I described in my previous article. (If you want more WiFi-IR gateway goodness, here is one I made a couple …

Convert Tuya Smart Plug for Privacy and Control – Walkthrough

In your favorite online Chinese outlet the number of smart home gadgets/appliances seems to be growing on a daily basis. This is fantastic for home automation enthusiasts who want to automate their home or office. It is also beneficial for anyone with a very specific problem to solve. However, virtually …

DIY 3D Printed Camera Dolly with Pan and Tilt Head

For a long time now I have been longing for a sliding platform for my video camera to take some smooth scrolling panning videos. Also, I have long wished to take proper panoramic images with my SLR. I have had some success using a tripod, but the process was a …

How I Made a Clock out of Parts of Old Projects

One side effect of ordering PCBs from a professional fab house is that you always get more PCBs than you actually need. For example, when you place an order for a PCB prototype at PCBWay, you get at least 10 copies of the PCB, sometimes even more. In most cases, …

ESP32-S3-Mini-1 Development Board

Below I present my own ESP32-S3 development board. The reason for creating my own development board is twofold: Features and advantages This board is using the ESP32-S3-MINI-1 module from Espressif. The board’s features include the following: Schematics Here is the schematics of the development board: Board As usual, I designed …