Nov 21, 2024, 3:42 PM
Using an ESP32 and an L293D H-bridge driver, I have put an old Siemens slave clock back into operation. In this article, I describe the technology and implementation step by step - a project for anyone interested in electronics and slave clocks.
Nov 5, 2024, 7:28 PM
While writing the articles about the ESP32 weather station, I came across a small problem that sounds quite simple at first, but turned out to be a bit more complicated than I thought. How do you take a screenshot of an LVGL screen running on an ESP32 microcontroller?
Aug 30, 2024, 9:12 AM
This article describes the development of my private web server over the last 20 years. Starting with an Acer laptop and a slow Internet connection, I now run my websites on a modern ASRock DeskMini X600.
Aug 5, 2024, 9:23 AM
The ESP32 weather station is now over a year old. So it's high time for an update. I have therefore spent the last few weeks developing a completely improved version of the weather station. I would like to present the changes to you in this article.
May 5, 2024, 1:27 PM
My new PC is a Minisforum UM690S. Despite its small size, it is very powerful. However, the small computer has one drawback: the two case fans are quite loud and run at full speed constantly. Therefore, I opted for a small modification to replace the case fans.
Apr 7, 2024, 12:37 AM
The FireBeetle 2 ESP32-C6 board from DFROBOT is very affordable and integrates not only the ESP32-C6 but also a charge controller for charging a lithium-ion battery and monitoring battery voltage. In this article, I'll show you how to build a cost-effective sensor for the weather station using this board.
Feb 28, 2024, 2:29 PM
This article illustrates the functionality of parallel LCDs, their integration with the ESP-IDF framework and the LVGL graphics library using the example of Makerfabs and Sunton Displays.
Feb 26, 2024, 4:04 PM
Makerfabs offers two new 7-inch displays with IPS panel and ESP32-S3 microcontroller. After my review, I realised that only one version actually has an IPS panel. The lower resolution display uses a TN panel and is similar to the Sunton 7-inch display.
Jan 31, 2024, 10:21 AM
This article is about an 80535 microcontroller board that I put back into operation after 30 years. Missing documentation, an outdated RS-232 interface or ancient Pascal code were not the only challenges
Jan 30, 2024, 7:33 PM
The Power Profiler Kit II from Nordic Semiconductor enables precise measurement of the power consumption of a microcontroller, even with strongly fluctuating values between milliamperes and microamperes.