OtterPill Is a Nano-Compatible STM32 Board with USB-PD

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https://www.electronics-lab.com/otterpill-nano-compatible-stm32-board-usb-pd/

STM32 was one of the names that were almost driven into oblivion, no thanks to the Arduino Revolution, but the name was brought back into the limelight when the STM32 Blue Pill was released. With its compatibility with the Arduino IDE via the STM32duino support package and its breadboard friendly form factor, it was a […]

Nanocounter: Frequency Counter with an Android Interface

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https://www.electronics-lab.com/nanocounter-frequency-counter-with-an-android-interface/

Andy published his accurate and open source frequency counter that uses an Android phone as a display. It’s based on a high accuracy temperature compensated crystal oscillator (TCXO) fed into a phase locked loop (PLL) to create a high frequency reference clock. The reference clock along with the input signal is processed by a Xilinx […]