User Manual for WisLink-LoRa Concentrator Module Raspberry Pi HAT Edition RAK2245 Pi HAT Version V1.2 | February 2019 www.RAKwireless.com Visit our website for more document.
RAK2245 Pi HAT Table of Contents 1 Overview..................................................................................................................................................... 4 1.1 Introduction......................................................................................................................................... 4 1.2 Main Features....................................................................................................................................
RAK2245 Pi HAT List of Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 | Operating Frequencies.............................................................................................................. 5 | Pin Definitions............................................................................................................................. 7 | Absolute Maximum Ratings.....................................................................................................
RAK2245 Pi HAT 1 Overview 1.1 Introduction RAK2245 Pi HAT is a module with Raspberry PI form factor. It can be plugged into Raspberry PI such as Raspberry Pi 3 Model B+ as a complete RF front end of LoRa gateway.It supports eight channels and is available for LoRaWAN global frequency bands. The board is the smallest LoRaWAN gateway concentrator which integrates the Ublox MAX-7Q GPS Module and heat sink. The board can provide low data rate LoRa radio links in ultra-fast speed.
RAK2245 Pi HAT 2 RAK2245 Pi HAT Board 2.1 Overview RAK2245 Pi HAT module with Raspberry Pi connector is shown below, it has outer dimensions of 56.00 x 65.00 x 22.00 mm (±2mm). 5 Figure 1 | RAK2245 Pi HAT Overview 2.2 Operating Frequencies The board supports all LoRaWAN frequency channels as below. Which is easy to configure while building the firmware from the source code. Region North America Frequency ( MHz ) 903-927.5Mhz Table 1 | Operating Frequencies RAK2245 Pi HAT User Manual V1.
RAK2245 Pi HAT 2.3 Pin Definition The pin connector of RAK2245 Pi HAT is located at the bottom side. Refer to the diagram and table below for the description and numbering of each pins. 6 Figure 2 | Raspberry Pi Connector Overview Pin Name Description 1 3.3V 3.
RAK2245 Pi HAT 17 3.3V 3.3V Supply Voltage 18 NC Description Pin Name Description 20 GND GND 22 NC No Connection 24 SPI_CS It should be connected to RASPBERRY PI’s SPI_CE0. This pin is connected to SX1301’s SPI_CS internally. No Connection Continuation: Pin Name 19 SPI_M OSI 21 SPI_MI SO It should be connected to RASPBERRY PI’s SPI_ MOSI. This pin is connected to SX1301’s SPI_MOSI internally. It should be connected to RASPBERRY PI’s SPI_MISO.
RAK2245 Pi HAT 2.5 SPI Interface The pin connector provides an SPI connection which allows direct access to the Sx1301 SPI interface. This gives the target system the possibility to use existing SPI interfaces to communicate with the module. Note: Please reset SX1301 via PIN 11 after turning on RAK2245 Pi HAT. 2.6 UART and I2C UART and I2C connections are also included on the pin connector. These connections allow direct access to the GPS module. The 1PPS is connected internally to SX1301. 2.
RAK2245 Pi HAT Parameter Description Min. Typ. Max. Supply Voltage (VDD) Input DC voltage -0.3V 5.0V 5.5V Operating Temperature Temperature Range -40°C +85°C -15dBm RF Input Power Table 3 | Absolute Maximum Ratings Note: With RF output power level above +15 dBm a minimum distance to a transmitter should be 1 m for avoiding too large input level. 2.10.2 Maximum ESD The table below lists the maximum ESD.
RAK2245 Pi HAT Active-Mode(TX) TX enabled and RX disabled. 336mA Active-Mode(RX ) TX disabled and RX enabled. 360mA able 6 | Power Consumption 2.11 RF Characteristics 2.11.1 Transmitter RF Characteristics The RAK2245 Pi HAT has an excellent transmitter performance. It is highly recommended to use an optimized configuration for the power level configuration, which is part of the HAL. This results in a mean RF output power level and current consumption.
RAK2245 Pi HAT TX Frequency Variation vs. Temperature TX Power Variation vs. Temperature -3 KHz +3 KHz -5 dBm +5 dBm -1.5 dBm +1.5 dBm Power Level Setting : 20 TX Power Variation e 8 | TX RF Characteristics 2.11.2 Receiver RF Characteristics We recommended you to use optimized RSSI calibration values which is part of HAL v3.1. For both Radio 1 and 2, the RSSI-offset should be set to -169. The following table gives typical sensitivity level of RAK2245 Pi HAT.
RAK2245 Pi HAT 3 Source Codes Here is the open source code link: https://github.com/RAKWireless/RAK2245-RAK831-LoRaGateway-RPi-Raspbian-OS 12 RAK2245 Pi HAT User Manual V1.
RAK2245 Pi HAT 4 Warning FCC Warning：This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions. (1) This device may not cause harmful interference; (2) This device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
RAK2245 Pi HAT INTEGRATION INSTRUCTIONS 1. This module has been tested and found to comply with the FCC Part15.247 for Modular Approval. 2. This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna installation and operating configurations of this transmitter, including any applicable source-based time- averaging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements of 2.1091.
RAK2245 Pi HAT multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration.It is important to note that host product manufactures should not assume that because the modular transmitter is certified that they do not have any responsibility for final product compliance. c) If the investigation indicates acompliance concern the host product manufacture is obligated to mitigate the issue.
RAK2245 Pi HAT 5 Contact Information Shenzhen ken.yu@rakwireless.com Room 506, Bldg B, New Compark, Pingshan First Road, Taoyuan Street, Nan shan District, Shenzhen 16 RAK2245 Pi HAT User Manual V1.
RAK2245 Pi HAT 6 7 Revision History Revision Description Date 1.0 Initial version 2018-12-21 1.1 Modify Pin definition 2019-01-23 1.2 Add source codes chapter 2019-02-14 Document Summary Document Name: RAK2245 Pi HAT User Manual Revision Number: V1.2 Prepared by Checked by: Jeff & Penn Jeff Approved by: 17 About RAKwireless: RAKwireless is the pioneer in providing innovative and diverse cellular and LoRa connectivity solutions for IoT edge devices.
