MP1584EN Buck Converter 0.8V-18V 3A - Mini Step-Down uno The pinout of this board

The pinout of this board matches the FTDI cable to work with official Arduino and cloned 3

The NRF24L01+ module may often be used in its stead because it is backward compatible with the NRF24L01 module

The PIR Motion Sensor HC SR505 is a proximity presence sensor module designed for presence sensing

7V nominal Capacity 1000mAh Connector JST-PH 2-pin Rechargeable Yes

and is very straightforward of its capabilities

MP1584EN Buck Converter 0.8V-18V 3A - Mini Step-Down uno The pinout of this boardIf you're looking for a high quality adjustable DC DC buck converter, this item is for you. This DC DC Adjustable Step Down Converter is based on the MP1584 chip, which converts voltages from a range of 4. 5V 28V to a lower rating of 0. 8V 18V. Note: Voltage must be 1. 5V higher than the desired output. The chip will switch to high temperature protection mode when it works at a high power conversion, without any cooling, it is able to output 3A