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Category: Projects

Analog electronics, Hobby, Projects, Tutorial

Symmetrical power source for op-amps

Pedro Ney Stroski / 01/07/2025

This post’s subject is the design and assemble of a symmetrical power source, to supply operational amplifiers (op-amps).

3D printing, Hobby, Instrumentation, Microcontrollers, Projects, Sensors, Tutorial

Scale with HX711 module and Arduino

Pedro Ney Stroski / 30/05/2025

This the project of a scale with a HX711 module and an Arduino, to measure filaments used in 3D printing.

Analog electronics, Hobby, Integrated circuits, Projects, Tutorial

XR2206 function generator kit assembly

Pedro Ney Stroski / 31/03/2025

This post shows the assembly process and explains how to use the function generator based on integrated circuit XR2206.

Printed Circuit Board, Projects, Sensors, Tutorial

Box for automatic battery charger

Pedro Ney Stroski / 20/02/2025
Printed Circuit Board, Projects, Sensors, Tutorial

Automatic battery charger

Pedro Ney Stroski / 15/02/2025

This is a project of an automatic battery charger circuit, which interrupts charging when the battery reaches a limit.

Experiments, High energy, Hobby, Magnetism, Projects

Assembling a mini Tesla coil

Pedro Ney Stroski / 01/09/2024

This post subject is the assemble and operation of a mini Tesla coil kit, which is supplied by a DC voltage between 9 and 30V.

Digital electronics, Projects

Multiplexer: definition and applications

Pedro Ney Stroski / 03/08/2024

The multiplexer is a combinational circuit with many data inputs and selects one of them to transmit on a single output.

Automation, Hobby, Microcontrollers, Motors, Projects, Sensors

Improvement in autonomous robot

Pedro Ney Stroski / 25/05/2024
Electronic components, Integrated circuits, Light, Projects, Semiconductors

Optocoupler with phototransistor

Pedro Ney Stroski / 06/04/2024

The optocoupler electrically insulates a circuit’s input and output. The operation and some projects are shown in this post.

Electronic components, Hobby, Microcontrollers, Projects, Sensors, Temperature

DHT11 and DHT22, temperature and humidity sensors

Pedro Ney Stroski / 16/03/2024

DHT11 and DHT22 are sensors manufactured by Aosong, with a digital output for measurements. Here, it’s shown how to use it on Arduino.

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Pedro Ney Stroski

About me

Hi! I am electrical engineer with master degree in Electronic Systems. This site talks about technology subjects, destinated to students and interested in all levels.

 

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