User's Manual

2
RAK2245 Pi HAT
2
RAK2245 Pi HAT User Manual V1.2
Table of Contents
1 Overview..................................................................................................................................................... 4
1.1 Introduction
.........................................................................................................................................
4
1.2 Main Features
....................................................................................................................................
4
2 RAK2245 Pi HAT Board.......................................................................................................................... 5
2.1 Overview............................................................................................................................................. 5
2.2 Operating Frequencies..................................................................................................................... 5
2.3 Pin Definition...................................................................................................................................... 6
2.4 Power Supply
.....................................................................................................................................
7
2.5 SPI Interface
.......................................................................................................................................
8
2.6 UART and I2C.................................................................................................................................... 8
2.7 Digital IOs............................................................................................................................................8
2.8 LEDs
....................................................................................................................................................
8
2.9 Antenna RF Interface
........................................................................................................................
8
2.10 Electrical Characteristics................................................................................................................ 8
2.10.1 Absolute Maximum Rating.................................................................................................8
2.10.2 Maximum ESD.....................................................................................................................9
2.10.3 Operating Conditions.......................................................................................................... 9
2.10.4 Power Consumption
...........................................................................................................
9
2.11 RF Characteristics
.........................................................................................................................
10
2.11.1 Transmitter RF Characteristics....................................................................................... 10
2.11.2 Receiver RF Characteristics........................................................................................... 11
3 Source Codes..........................................................................................................................................12
4 Warning
.....................................................................................................................................................
13
5 Contact Information
...............................................................................................................................
16
6 Revision History..................................................................................................................................... 17
7 Document Summary..............................................................................................................................17