Open-Electronics https://www.open-electronics.org/ Open source electronic projects Thu, 14 Aug 2025 10:20:32 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://www.open-electronics.org/wp-content/uploads/2015/08/cropped-logo-32x32.jpeg Open-Electronics https://www.open-electronics.org/ 32 32 32754084 TekkaSketch: Reinventing the Etch-a-Sketch with E-Ink and ESP32 Innovation https://www.open-electronics.org/tekkasketch-reinventing-the-etch-a-sketch-with-e-ink-and-esp32-innovation/ https://www.open-electronics.org/tekkasketch-reinventing-the-etch-a-sketch-with-e-ink-and-esp32-innovation/#respond Thu, 14 Aug 2025 10:20:29 +0000 https://www.open-electronics.org/?p=37738 The iconic Etch-a-Sketch, a toy beloved by generations, always had one major limitation: a drawing mistake meant shaking the entire device and starting over from scratch. With the TekkaSketch project, this limitation is overcome thanks to a modern approach that integrates digital functions while preserving the classic aesthetic. The idea stems from observing the original […]

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]]> https://www.open-electronics.org/tekkasketch-reinventing-the-etch-a-sketch-with-e-ink-and-esp32-innovation/feed/ 0 37738 How to Build a Variable Constant Current Source with Sink Function https://www.open-electronics.org/how-to-build-a-variable-constant-current-source-with-sink-function/ https://www.open-electronics.org/how-to-build-a-variable-constant-current-source-with-sink-function/#respond Tue, 12 Aug 2025 15:04:10 +0000 https://www.open-electronics.org/?p=37702 An adjustable constant current generator is an essential tool for many electronic applications, especially when a stable current is required regardless of the load. This project, designed and built with a PIC16F1765 microcontroller, combines both constant current sourcing and sinking capabilities in one device, with the ability to adjust the value from 0 to 1000 […]

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]]> https://www.open-electronics.org/how-to-build-a-variable-constant-current-source-with-sink-function/feed/ 0 37702 How to Build a 1000W ZVS Induction Heater Using a Resonant RLC Circuit https://www.open-electronics.org/how-to-build-a-1000w-zvs-induction-heater-using-a-resonant-rlc-circuit/ https://www.open-electronics.org/how-to-build-a-1000w-zvs-induction-heater-using-a-resonant-rlc-circuit/#respond Wed, 02 Jul 2025 08:56:45 +0000 https://www.open-electronics.org/?p=37437 Let’s Melt Metals Using the ZVS (Zero Voltage Switching) Technique Applied to a 1,000W RLC Resonant Circuit Have you ever wondered how intense the electromagnetic fields surrounding us can be? This is a relevant question, considering we are surrounded by countless electromagnetic waves, caused by power distribution cables, radio and TV transmitters, mobile phone networks, […]

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]]> https://www.open-electronics.org/how-to-build-a-1000w-zvs-induction-heater-using-a-resonant-rlc-circuit/feed/ 0 37437 How to Control NeoPixel Installations via Wi-Fi Using Fishino and NodeMCU with Python https://www.open-electronics.org/how-to-control-neopixel-installations-via-wi-fi-using-fishino-and-nodemcu-with-python/ https://www.open-electronics.org/how-to-control-neopixel-installations-via-wi-fi-using-fishino-and-nodemcu-with-python/#respond Tue, 05 Nov 2024 13:51:42 +0000 https://www.open-electronics.org/?p=37407 We create NeoPixel light installations with Fishino and NodeMCU controlled via Wi-Fi from a PC or Raspberry Pi using a Python library. A few years ago, the American company Adafruit Industries transformed the LED market by introducing NeoPixels, RGB LEDs that incorporate their own controller in a single package. Adafruit aimed to simplify LED management […]

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]]> https://www.open-electronics.org/how-to-control-neopixel-installations-via-wi-fi-using-fishino-and-nodemcu-with-python/feed/ 0 37407 How to Adjust X and Y Axis Scale in Arduino Serial Plotter (No Extra Software Needed) https://www.open-electronics.org/how-to-adjust-x-and-y-axis-scale-in-arduino-serial-plotter-no-extra-software-needed/ https://www.open-electronics.org/how-to-adjust-x-and-y-axis-scale-in-arduino-serial-plotter-no-extra-software-needed/#comments Fri, 27 Sep 2024 14:52:02 +0000 https://www.open-electronics.org/?p=37387 The Serial Plotter in Arduino is an excellent tool for quickly visualizing serial data. However, it has a limitation that can frustrate many users: it’s not immediately obvious how to adjust the X and Y axis scales, especially the X axis. In this article, I will guide you step by step on how to solve […]

The post How to Adjust X and Y Axis Scale in Arduino Serial Plotter (No Extra Software Needed) appeared first on Open-Electronics. The author is Boris Landoni

]]> https://www.open-electronics.org/how-to-adjust-x-and-y-axis-scale-in-arduino-serial-plotter-no-extra-software-needed/feed/ 3 37387 Elettronici Entusiasti: Inspiring Makers at Maker Faire Rome 2024 https://www.open-electronics.org/elettronici-entusiasti-inspiring-makers-at-maker-faire-rome-2024/ https://www.open-electronics.org/elettronici-entusiasti-inspiring-makers-at-maker-faire-rome-2024/#respond Fri, 27 Sep 2024 09:52:17 +0000 https://www.open-electronics.org/?p=37381 Maker Faire Rome 2024 is ready to amaze the public with an extraordinary showcase of ingenuity and technological innovation, thanks to the Elettronici Entusiasti. This collective of passionate creators, through their YouTube channels and technical expertise, has captured the attention of hundreds of thousands of followers. Their mission? To rekindle interest in electronics, making, and […]

The post Elettronici Entusiasti: Inspiring Makers at Maker Faire Rome 2024 appeared first on Open-Electronics. The author is Boris Landoni

]]> https://www.open-electronics.org/elettronici-entusiasti-inspiring-makers-at-maker-faire-rome-2024/feed/ 0 37381 makeITcircular 2024 content launched – Part of Maker Faire Rome 2024 https://www.open-electronics.org/makeitcircular-2024-content-launched-part-of-maker-faire-rome-2024/ https://www.open-electronics.org/makeitcircular-2024-content-launched-part-of-maker-faire-rome-2024/#respond Mon, 15 Jul 2024 13:06:49 +0000 https://www.open-electronics.org/?p=37363 Applications to MakeITcircular must be in by October 3, 2024 with the top prize of €3000 MakeITcircular is the contest that promotes the Circular Consumption Charter and the values of recycling, reuse and co-design. Shifting from a linear to a “circular economy” model is the key to enabling economic growth that respects material and natural resources and to making […]

The post makeITcircular 2024 content launched – Part of Maker Faire Rome 2024 appeared first on Open-Electronics. The author is Boris Landoni

]]> https://www.open-electronics.org/makeitcircular-2024-content-launched-part-of-maker-faire-rome-2024/feed/ 0 37363 SONY color camera module, 700 TV Lines https://www.open-electronics.org/sony-color-camera-module-700-tv-lines/ https://www.open-electronics.org/sony-color-camera-module-700-tv-lines/#comments Thu, 04 Jul 2024 15:33:27 +0000 https://www.open-electronics.org/sony-color-camera-module-700-tv-lines/ Color camera module equipped with a 1/3″ CCD sensor and SONY DSP, ideal for achieving high-quality images. The f3.6 mm lens provides a wide field of view, perfect for various applications. The camera boasts an extremely high resolution of 700 TV lines, ensuring highly detailed images. With a sensitivity of 0.1 Lux, it can operate […]

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]]> https://www.open-electronics.org/sony-color-camera-module-700-tv-lines/feed/ 1 37357 ESP32 Low Power Module https://www.open-electronics.org/esp32-low-power-module/ https://www.open-electronics.org/esp32-low-power-module/#respond Fri, 07 Jun 2024 16:33:26 +0000 https://www.open-electronics.org/esp32-low-power-module/ ESP32 Low Power Module, based on Espressif’s SoC capable of providing full compatibility with the standard MINI ESP32 version. Compared to the latter, this module lacks a USB interface, dedicated exclusively to programming the ESP32, making it ideal for low-power applications. Compatible with the Arduino IDE, it includes a WiFi 802.11 b/g/n transceiver and a […]

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]]> https://www.open-electronics.org/esp32-low-power-module/feed/ 0 37303 Power supply latch https://www.open-electronics.org/power-supply-latch/ https://www.open-electronics.org/power-supply-latch/#respond Fri, 07 Jun 2024 14:33:28 +0000 https://www.open-electronics.org/power-supply-latch/ This power supply latch provides power to the external circuit you wish to power, allowing it to remain powered on or turn off after completing its operations. It functions like a self-holding relay but is solid-state and is suitable for handling a wide range of DC voltages from 5 to 30 volts. It is ideal […]

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]]> https://www.open-electronics.org/power-supply-latch/feed/ 0 37301 Application For Maker Faire Rome 2024: Deadline June 20th https://www.open-electronics.org/application-for-maker-faire-rome-2024-deadline-june-20th/ https://www.open-electronics.org/application-for-maker-faire-rome-2024-deadline-june-20th/#respond Wed, 05 Jun 2024 10:25:19 +0000 https://www.open-electronics.org/?p=37236 Learn More About the Ideas, Makers + Projects at Maker Faire Rome 2024 Developing a multitude of technologies for the sustainability of the planet and for environmental care is imperative today. The depletion of natural resources and the need to conserve what remains have brought technological innovation into our lives, especially at events and expositions […]

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]]> https://www.open-electronics.org/application-for-maker-faire-rome-2024-deadline-june-20th/feed/ 0 37236 GSM/4G Remote Control with DTMF Commands https://www.open-electronics.org/gsm-4g-remote-control-with-dtmf-commands/ https://www.open-electronics.org/gsm-4g-remote-control-with-dtmf-commands/#respond Thu, 23 May 2024 15:33:27 +0000 https://www.open-electronics.org/gsm-4g-remote-control-with-dtmf-commands/ Two-way remote control system, based on the GSM/4G A7682E module from SIMCom, which utilizes the GSM network for activations and controls. All settings are made via SMS or locally via PC (using the optional FT782M interface). It has two relay outputs with monostable or bistable operation and two opto-isolated alarm inputs. It can store up […]

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