Tutorials
We program ultra-low-cost microcontrollers CH32V00x both in Arduino IDE and without it (Linux). Guide.
CH32V microcontrollers – you’ve probably heard of them. They are sold at a ridiculously low price but come with a very decent set of features, plus they are available in…
CO2 sensors from Sensirion. SCD30, SCD40, or STCC4? Which sensor is suitable for home use?
Sensirion, a leading manufacturer of various sensors, offers multiple types of sensors for measuring CO2 concentration. This article will explore the differences, advantages, and the best sensor for battery operation.
Flipper Zero, Keysy, Proxmark? Forget about them, now there’s Chameleon Ultra. An RFID emulator that can do a lot.
The Chameleon Ultra is a compact RFID emulator that can clone LF (125 kHz) and HF (13.56 MHz) cards. It can read, write, and be used as a communication analyzer.…
Converter for numerical systems between HEX, DEC, and BIN – ad-free, button-free, and intuitive.
There are plenty of converters between HEX, DEC, and BIN number systems everywhere. Some do this, others do that, and some have ads everywhere, making it hard to navigate their…
Universal platform with ESP32-S3 for simple programming education.
Discover the Genesis IoT Discovery Lab – an open, modular platform for rapid prototyping and electronics education! Plug-and-play modules and a baseboard coming soon to CrowdSupply – will it find…
ePaper 4.3″ (800×600) with UART interface
ePaper is the display interface which is more and more popular thanks to zero power consumption and also price which is lower than before a few months and years. ePaper…
CH552 – the C51 microcontroleler for 0.3 USD and how to program it
Really cheap microcontroller CH55x based on C51 core (AT89C2051, AT89C51) you can buy for a few cents. In this video tutorial, you will find how to program this microcontroller and…
ESP32 VGA – tutorial for beginners
How to connect development board with ESP32 and big VGA screen? The tutorial describes you step-by-step from the scratch. You modified the cable, install the library and upload FW to…
How to convert your DSLogic Basic into DSLogic Plus
Tomas Jira sent me this article about the hack how to modify DSLogic to DS Logic plus logic anaylzer. 1. Requirements 1.1. Hardware 1.1.1 DSLogic Basic logic analyzer. Could be…
QR scanner with ESP32
Popular WiFi and Bluetooth IC called ESP32 you can use in a lot of projects. For example like this. ESP32 development board with camera interface and through this connector you…
