Micro-SD Card Low Power Showdown – Part II

In 2020, I worked with an intern to characterize SD power characteristics (view the archive). As my colleagues and I embark on a mass deployment of new devices in 2025, it is time to revisit the perennial question: what SD card is best? Specifically, what SD card has the lowest current draw in an Arduino-based, […]

GR/PR: An open-source grip strength meter

gr/pr prototype and ios app mock-up

In animal models of limb disuse, grip strength (or force) is a measure used to characterize the time course and severity of muscle atrophy.

Evaluating a 60GHz mmWave radar system

mmWave Sensor Housing

Accuracy and applicability of Seeed Studio 60GHz mmWave Sensor (Breathing and Heartbeat Module) based on the MR60BHA1 60GHz radar module