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 Missing documentation, an outdated RS-232 interface or ancient Pascal code were not the only challenges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.
Dec 3, 2023, 9:49 AM
So far I have used SquareLine Studio to create the weather station GUI. Unfortunately, SquareLine has now quadrupled its prices. So this company is no longer an option for future projects.
Oct 11, 2023, 10:58 PM
In this article I would like to show you a small project on how I built an LED aquarium light from various leftovers. The brightness is automatically controlled by an ESP32 microcontroller.
Oct 10, 2023, 10:57 PM
How can you control higher loads such as LED strips with the ESP32 when a single GPIO pin can only deliver a few milliamps at 3.3 V? In this article, I take a practical look at different transistor solutions for switching higher currents with the ESP32. I compare a Darlington transistor with three MOSFETs and show, which types are suitable for logic-level control.
Jun 29, 2023, 4:36 PM
A tutorial for a weather station that can display the weather forecast, air quality and, using wireless sensors, the temperature, humidity and air pressure in several rooms.