Users Manual

3
RA
K20
11
RAK3401
3
1 Introduction
This document explains the design of the RAK3401 module and describes a hardware
interface that is important to understand in order to build customized applications.
This document helps customers quickly to understand the interface specifications,
electrical and mechanical details, as well as other relevant information of RAK3401
module.
2 Overview
2.1 General description
The RAK3401 module is part of the WisBlock series, specifically, it’s one of the
modules that belong to the WisCore category.
The RAK3401 is a breakout module designed to work with RAK5005 baseboard.
Essentially, it is a RAK3400 stamp module with an expansion PCB and connectors
compatible with the RAK5005 baseboard. It allows an easy way to access to the pins
of the RAK3400 module in order to simplify development and testing processes.
The module itself comprises a RAK3400 as its main component. The RAK3400 is a
combination of a nRF52840 MCU, it features ultra-low power consumption of 2.0uA
during sleep mode, and the BLE interface with output power up to 4dBm.
The RF communication characteristic of the module (BLE) makes it suitable for a
variety of applications in the IoT field such as home automation, sensor networks,
building automation, personal area networks applications (health/fitness sensors, and
monitors, etc.).
2.2 Main Features
 I/O ports: UART/I2C/GPIO/USB/SPI (optional NFC interface)
 Temperature range: -40°C to +85°C
 Supply voltage: 2.0 ~ 3.6V
 Ultra-Low Power Consumption 2.0uA in sleep mode
 BLE5.0 (Tx power -20 to +4dBm in 4dB steps)
 Serial Wire Debug (SWD) interface
 Module size: 20 x 30mm