Electronics, Embedded, 3D Printing & Coding
I have news for those who have been following mischianti.org for a while: I’m officially launching an initiative I’ve had in mind for a long time. Every year I draw up to 5 software bundles (JetBrains All Products Pack + AiNonymizer) among the most active contributors to the site and the forum.
Discover how to use the HC-SR04 ultrasonic sensor with Arduino, ESP32, and ESP8266. Learn its time-of-flight principle, safe wiring and voltage-level considerations, practical code with pulseIn() and NewPing, plus advanced multi-sensor modes for reliable distance measurement.
The HC-SR04 is an ultrasonic sensor that measures distances from 2cm to 400cm using the Time-of-Flight (ToF) principle. It emits a 40 kHz sound pulse and calculates the echo’s return time. It provides reliable detection regardless of ambient light, identifying transparent and liquid surfaces.
I have news for those who have been following mischianti.org for a while: I’m officially launching an initiative I’ve had in mind for a long time. Every year I draw up to 5 software bundles (JetBrains All Products Pack + AiNonymizer) among the most active contributors to the site and the forum.
I’d like to renew my cnc for PCB so I decide to create new one from an existing project named Cyclone PCB Factory.
Introduction and mechanical part.
Discover how to use the HC-SR04 ultrasonic sensor with Arduino, ESP32, and ESP8266. Learn its time-of-flight principle, safe wiring and voltage-level considerations, practical code with pulseIn() and NewPing, plus advanced multi-sensor modes for reliable distance measurement.
The HC-SR04 is an ultrasonic sensor that measures distances from 2cm to 400cm using the Time-of-Flight (ToF) principle. It emits a 40 kHz sound pulse and calculates the echo’s return time. It provides reliable detection regardless of ambient light, identifying transparent and liquid surfaces.
Monitoring soil temperature and moisture with industrial-grade reliability has never been easier. In this guide, we’ll walk you through using the ZTS-3000-WS-N01 RS485 soil sensor with the ZTS3000_RS485 Arduino library. You’ll learn how to wire your hardware, install the library, perform basic soil measurements, and apply advanced calibration commands, all using familiar Arduino sketches.
Turn your ESP32 into a high-performance multi-session FTP server with the MultiFTPServer library. A complete guide covering FtpServerKey.h configuration, a comparison of SPIFFS, LittleFS, FFat and SD card filesystems, real-time monitoring callbacks, FileZilla optimization for multiple connections, and ready-to-use code examples.
Discover how to combine the MPU9250 with ESP32 and Arduino to build low-power motion-sensing devices. In this guide we’ll cover wiring for Arduino UNO, ESP32 and ESP32c3, using data-ready and wake-on-motion interrupts, and integrating with deep sleep to maximize battery life in IoT projects.
The Seeed Studio XIAO ESP32-C3 is an ultra-compact RISC-V board (21×17.8 mm) exposing just 11 GPIOs, yet fully production-ready: U.FL external antenna connector, onboard ETA4054 LiPo charging IC, castellated pads for SMD mounting and native ~44 µA deep sleep. Discover the high-resolution pinout, datasheet, schematic and comparison with generic SuperMini boards.
The ESP32-C6 SuperMini is a game-changer for compact IoT projects. This guide provides an in-depth analysis of its hardware, including a high-resolution pinout, schematics, and specs. Discover how its RISC-V core, Wi-Fi 6, Bluetooth 5.3, and Zigbee/Thread support make it perfect for Matter hubs.
The MPU9250 is a versatile sensor module designed for applications requiring accurate motion sensing and orientation data. This sensor module is particularly favored in projects involving Arduino and other microcontroller platforms due to its ease of use and extensive functionality. In this article, we will learn how to wire and program this sensor for basic functionality.
Discover the MPU-9250: a compact 9-axis MotionTracking module integrating a 3-axis gyroscope, accelerometer, magnetometer, and Digital Motion Processor. This guide breaks down its complex features into simple terms, detailing pinouts, I2C/SPI connectivity, and schematics for easy integration.
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