The title says it all – this article describes a microcontroller-compatible current sensor module you can build yourself, using an inexpensive 8-pin chip as an ‘active shunt’ for measuring ac/dc ...

With a − 40ºC to +85ºC operating temperature range, the MAX30102 is available in a tiny 14-pin optical module (5.6×3.3×1.55 mm). Pricing starts at $4.13 (1000-up, FOB USA). ... 5 comments on “ Pulse ...