Tiny ObsidianBoa Dev Board Features Espressif Systems’ ESP32-S2 Board

Tiny ObsidianBoa Dev Board Features Espressif Systems’ ESP32-S2 Board

Greg Davill has posted on GitHub an Espressif Systems ESP32 based development board called the ObsidianBoa.


New Ring Coil Tester Provides Large and Super Large Capacitance Testing to 640 mF

New Ring Coil Tester Provides Large and Super Large Capacitance Testing to 640 mF

New Generation Ring Coil Tester: LCR-Reader-MPA with Coil Test Unit A Popular All-in-one Digital Multimeter from Siborg now has...


Beelink Gemini M; Ultra-Thin Mini PC Based on Intel GLK-R Processor

Beelink Gemini M; Ultra-Thin Mini PC Based on Intel GLK-R Processor

Shenzhen based computer hardware manufacturer, Beelink, recently teased the release of a series of new Mini PCs top of which was...


microUPDI – Pro-Micro Based UPDI Programmer

microUPDI – Pro-Micro Based UPDI Programmer

Thanks to the increased popularity of the recent ATtiny series of microcontrollers, there has been an increase in the number of...


Audio VU/Sound Level Meter with LM339

Audio VU/Sound Level Meter with LM339

This is an “Audio VU Meter” or “Sound Level Meter”, it is a general-purpose bar-graph Audio VU meter designed for fun projects.


Audio Components by mixos
Flash an LED from AC-mains power

Flash an LED from AC-mains power

LED technology is opening the door to a variety of high-power-illumination applications.


A Touchscreen Reflow Oven Controller Using an Arduino Pro Mini

A Touchscreen Reflow Oven Controller Using an Arduino Pro Mini

We have seen people make many simple reflow ovens, comprising of an old toaster oven, a Solid State Relay (SSR), a thermocouple,...


DIY Arduino Nano HV UPDI Programmer

DIY Arduino Nano HV UPDI Programmer

In May, Arduino released a guide on how you can create a UPDI programmer for under $10.


Hardkernel’s Powerful Odroid-N2 Single Board Computer Gets an Upgrade – Odroid N2 Plus

Hardkernel’s Powerful Odroid-N2 Single Board Computer Gets an Upgrade – Odroid N2 Plus

With Amlogic S922X Rev.


PaperiNode, an Arduino-compatible flexible low power energy-harvesting LoRa-enabled electronic paper display

PaperiNode, an Arduino-compatible flexible low power energy-harvesting LoRa-enabled electronic paper display

Robert Poser has posted his project on GitHub called PaperiNode, which is a flexible, low power, energy-harvesting, LoRa-enabled,...


Murata’s ultra-small, 0.5 A to 2.0 A DC/DC converters offer high efficiency and low noise

Murata’s ultra-small, 0.5 A to 2.0 A DC/DC converters offer high efficiency and low noise

Murata’s MYR series are the PicoBK™ DC/DC converters that integrate a coil and a control IC.


Components Power by mixos
Meet the KitDuino: The Atmega32u4 based Development Board

Meet the KitDuino: The Atmega32u4 based Development Board

While some may think the era of the Arduino Clones is over, the reverse is the case as more designers are, on a daily basis,...