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Updated: 22 min 15 sec ago

TekkaSketch: Reinventing the Etch-a-Sketch with E-Ink and ESP32 Innovation

Thu, 08/14/2025 - 13:20

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 […]

The post TekkaSketch: Reinventing the Etch-a-Sketch with E-Ink and ESP32 Innovation appeared first on Open-Electronics. The author is Boris Landoni

How to Build a Variable Constant Current Source with Sink Function

Tue, 08/12/2025 - 18:04

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 […]

The post How to Build a Variable Constant Current Source with Sink Function appeared first on Open-Electronics. The author is Boris Landoni