Electronics and PLCs
Circuits, components and testing, from discrete-component projects to PLC programming.
Explore electronics// Electronics · Software · Home automation
Electronics and home automation projects, explained step by step
Schematics, component lists and commented code for ESP32, Arduino and PLCs: every project can be understood, rebuilt and modified.
What I work on
From the component to the program: four areas that complement each other.
Microcontrollers
Arduino and ESP32: peripherals, networking and firmware, with the code explained line by line.
Explore Arduino and ESP32Home automation
Lights, temperatures and home automations, with ESP32 nodes that talk to each other over the network.
Explore home automationSoftware and Web
Windows programs in C, C++, Delphi and VBA; websites with PHP, HTML and JavaScript.
Explore the softwareHow the projects are made
Every project follows the same path, for both the hardware and the code.
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Hardware
Schematic, component list and connections, with the reason for every choice.
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Code
Complete, commented source code, explained one block at a time.
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Test
Measurements and checks to confirm that everything works as expected.
Featured projects
A few of the projects in the Electronics section, with schematic, components, code and files to download.
Digital triac relay
- Hardware
- Mains voltage
A small circuit that drives AC loads up to 4 A from a 2 to 5 V signal, PWM included.
Open the project: Digital triac relay
Twilight switch with presence sensor
- Hardware
- Mains voltage
Turns a lamp on when someone is present and the ambient light is below a threshold; it stays on for an adjustable time.
Open the project: Twilight switch with presence sensor
Weather station with Arduino Nano
- Hardware
- Code
Temperature, humidity, pressure and altitude on a colour display, with two sensors (DHT11 and BME280).
Open the project: Weather station with Arduino NanoAbout me
I am Gian Luca Quinci, a retired electronics technician and a tinkerer by passion. I program PCs, microcontrollers and PLCs, and I describe my projects here so that anyone can rebuild them.
Read moreWindows and DOS programs too
Management of sports championships, warehouses, video libraries and more: freeware and shareware programs for Windows, some of them also for DOS, available for download in the Software section.
Go to the programsDo you have an idea or a problem to solve?
For clarifications, customisations or information, write to me: I will reply as soon as possible.
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