15V Step-Up Voltage Regulator U3V70F15 Spedizione:2-4 Settimane brushed DC motor using an

brushed DC motor using an I²C or TTL serial (UART) interface

and circuit production technology

which definitely gives you a bigger bang for your buck

Of course Arduino example code is available as well as a Processing sketch for visualizing heart rate data

Output voltage: 9 V with 4% accuracy

15V Step-Up Voltage Regulator U3V70F15 Spedizione:2-4 Settimane brushed DC motor using anThis powerful synchronous switching boost regulator efficiently generates an output voltage of 15 V from an input voltage as low as 2. 9 V while using an input current as high as 7 A. This regulator features reverse voltage protection, and unlike most boost regulators, it offers a true shutdown option that turns off power to the load. Overview The U3V70x boost (step up) voltage regulators are high current, high efficiency synchronous switching