Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing ...

ESP32_Host_MIDI turns an ESP32 into a multi-protocol MIDI hub. Connect a USB MIDI keyboard over USB Host, receive notes from an iPhone over BLE, bridge a DAW over WiFi with RTP-MIDI (Apple MIDI), talk ...

Over the last decade, the open-source movement has not only transformed the world of software, but also catalyzed a sweeping revolution in hardware tinkering. At the heart of this shift lies a ...

Needing to drive two devices with a DCF 77 signal, I made an NTP client time server with two output channels. Elektor published in its March-April 2018 issue an excellent article describing a module ...

Waveshare “ESP32-S3-Touch-LCD-4.3B” is a capacitive touch display development board built around an ESP32-S3 SoC with RS485, CAN Bus, I2C, and isolated DIO interfaces provided through a terminal block ...

The following project is an update of Gary D. Patterson’s “Simplified CTC signals” in the July 1988 issue of MR. Bringing the project up to date was a large endeavour. The block control project now ...

Abstract: The utilization of power electronic converters, specifically DC/AC inverters are progressively expanding across industries and household appliances due to their myriad benefits. These ...

Discover the updated Arduino IoT water leak detector: smarter, more efficient, with advanced monitoring and alert systems for the modern smart home. Following the Elektor article presenting the water ...

We build the Arduino based Multi-house Water Pump Control System. Here we are going to explain step-by-step, how you can make your own Water Pump Controller. But before that, we need to understand why ...