Renzo Mischianti Articles

ESP32 E220 and remote switch 2

Implementing E220 LoRa Remote Switch to Conserve Wyse Cam3 Battery

The main goal here is to save battery power for a Wyse Cam3 video camera, which uses 180 mA at 5 volts. Since the camera is web-based and only gets a few views a day, we want to stop it from draining power all the time. Right now, a 10,000-mA battery bank only lasts a day, so we need a better way to manage its power. By using a remote switch controlled by an Async Web Server request, we can ensure the camera isn’t wasting battery when it’s not being used.

Programming Arduino UNO via WiFi with ESP8266 2

Introduction to Remote Programming of Arduino UNO via WiFi with ESP8266

This article will guide you through the methodology of remotely programming an Arduino UNO using ESP8266 modules, specifically focusing on NodeMCU and ESP01, utilizing the ESP-Link firmware. This firmware acts as a bridge, enabling WiFi and serial communication, thereby changing the way we interact with microcontroller boards like the Arduino UNO through ESP8266.

FTP Server on STM32 with ethernet card and SD card or SPI Flash 0

FTP server on STM32 with w5500, enc28j60, SD Card, and SPI Flash

Implementing an FTP server on an STM32 involves integrating the W5500 Ethernet module, ENC28J60 Ethernet controller, SD Card, and SPI Flash. This setup enables efficient network communication and storage, allowing the STM32 to handle file transfers and manage data effectively in embedded systems.

K40 40w CO2 Laser cutter engraver: review, first usage and upgrades

K40 40w CO2 Laser cutter engraver: review, first usage, and upgrades (all you need to know)

Discover everything you need to know about the K40 40W CO2 Laser Cutter and Engraver in this comprehensive review. Explore our first-hand experiences with its initial usage, and learn about the essential upgrades that can enhance its performance. This guide covers all the basics to help you get the most out of your K40 laser cutter.

Raspberry Pi Pico (rp2040) AND DS18B20: strong pull-up P-MOSFET gate and alarm

Dallas ds18b20 with Raspberry Pi Pico (rp2040): pull-up P-MOSFET gate and alarms

This article expands on the previous about the connection of DS18B20 sensors to a Raspberry Pi Pico using the OneWire protocol. It covers the use of a P-MOSFET gate as a pull-up resistor for the OneWire bus to improve communication reliability, as well as implementing temperature alarms triggered by a threshold. The article provides step-by-step instructions and code examples for incorporating these features. The goal of the article is to provide readers with advanced techniques for using DS18B20 sensors with a Raspberry Pi Pico.