Adafruit Feather STM32F405 Express Shipping:1 day Energy monitor with arduino

Energy monitor with arduino

two NPN transistors

a 12 x 8 LED matrix

even building game consoles

The module’s EN input can be driven low to put the board into a low-power state where it typically draws between 5 µA and 10 µA per volt on VIN

Adafruit Feather STM32F405 Express Shipping:1 day Energy monitor with arduinoST takes flight in this Feather board. The new STM32F405 Feather ( video ) that we designed runs CircuitPython at a blistering 168MHz our fastest CircuitPython board ever! We put a STEMMA QT Qwiic port on the end, so you can really easily plug and play I2C sensors. This Feather has lots of goodies: STM32F405 Cortex M4 with FPU and 1MB Flash, 168MHz speed 192KB RAM total 128 KB RAM for general usage + 64 KB program only cache RAM 3. 3V logic, but