Pololu 3.3V 6.5A Step-Down Voltage Regulator (D36V50F3) Brand_Western Digital so be extra-sceptical when reviewing

so be extra-sceptical when reviewing LED ratings

hardware I2C port and hardware UART to USB

1x 2*AA 3V Battery Holder

ports are limited to 500mA

Simply strap the band on and detect heartbeats from 4 feet away

Pololu 3.3V 6.5A Step-Down Voltage Regulator (D36V50F3) Brand_Western Digital so be extra-sceptical when reviewingThe D36V50Fx family of buck (step down) voltage regulators from Pololu generates lower output voltages from input voltages as high as 50V. This particular model offers an output of 3. 3V with a continuous output current of 6. 5A. They are switching regulators (also called switched mode power supplies (SMPS) or DC to DC converters), which makes them much more efficient than linear voltage regulators, especially when the difference between the input and