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Friday - 02 / 27 / 2026
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Energy

Classifications of circuit breakers

This post is the second part about circuit breakers and shows the different classifications and their respective applications. Click on the following button to access...

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Electronics

LiDAR: what is it and how does it work?

LiDAR is a sensor that uses laser beams to calculate distances and speed of objects and create detailed 3D maps and models. Post about laser...

Telecommunications

RS232, RS422 and RS485: what are the differences?

RS232, RS422, and RS485 are serial data communication protocols. Their main differences are the topic of this post. Why these standards were created? They were created...

Robotics and Automation

Vacuum cleaner robot: how does it work?

This post outlines the technologies employed in the vacuum cleaner robot, which enables it to clean the ground and navigate autonomously. Motors and the cleaning...
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Projects

Controlling RF 433 MHz modules with Arduino

The transmitter and receiver RF 433 MHz modules are useful for wireless projects with Arduino. In this post, it's shown how. I already published a...

Environment

The problem of microplastics

Microplastics are plastic fragments measuring up to 5 mm. They cause a grave environmental impact and harm people's health. How microplastics appear and where are...

Travels

Electrical e-Library on Campus Party 2025

I was in Brasília, for the 17th edition of Campus Party Brazil, an annual event of science, technology and entrepreneurship. Campus Party 2025 This event started...