DFRobot DC-DC Buck Module 5.5-28V to 3.3V 3A - DFR0570 heart rate sensor 2017 we now ship a

2017 we now ship a version with a slightly different power supply setup that reduces RTC brownouts

you need to install the Arduino software on your computer and connect the board to your computer using a USB cable

Interactive projects

and to the point

and it has a non-removable 1

DFRobot DC-DC Buck Module 5.5-28V to 3.3V 3A - DFR0570 heart rate sensor 2017 we now ship aThis is a DC DC buck mode power module, with input voltage range 5. 5~28V and fixed output voltage current 3. 3V 3A. Its work frequency can reach to 0. 5MHz. The module has high conversion and tiny body, convenient to embed. Besides, it has steady output voltage, which can work long time without voltage shift and is suitable for the occasion with high requirements. The product can work with high capacity and high voltage batteries to DIY mobile