RAK3401 RA K2 11 RAK3401 Breakout Module WisCore-LoRa Series Version V1.
RAK3401 Table of Contents 1 Introduction ........................................................................................................................................3 RA K2 11 2 Overview..............................................................................................................................................3 General description......................................................................................................................3 2.1 3 2.2 Main Features ....
RAK3401 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. RA K2 11 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.
RAK3401 2.3 Board Realistic View RA K2 11 Figure 1: RAK3401’s top layer (left), and bottom layer (right). 2.4 RAK3401 Mounting Sketch 4 The RAK3401 module is designed to work with the RAK5505 baseboard. Figure 2 shows how a RAK3401 module should be mounted on top of the RAK5505. Figure 2: RAK3401 mounting sketch. 2.5 Schematic Diagram The following chapters will describe the breakout module schematic. It includes WisConnector, core module, SWD interface, power up automatic reset, and memory flash.
RAK3401 2.5.1 WisConnector The breakout module allows the RAK3400 stamp module’s pinout to be transferred to board-to-board connector, Figure 3 shows the definition of this connector. RA K2 11 Figure 3: WisConnector pin definition. 2.5.2 WisConnector pin order Figure 4 shows the pin order of the WisConnector, which is located in the bottom layer of the module. 5 Figure 4: WisConnector pin order. 2.5.
RAK3401 RA K2 11 Figure 5: Cora module pin definition. 2.5.4 SWD interface The breakout module exposes a SWD debug interface, Figure 6 shows the connection information. Additionally, the RST pin is used for resetting the core module RAK3400. 6 Figure 6: SWD interface. 2.5.5 Power up automatic reset The breakout module has a power-up automatic reset circuit, Figure 7 shows the automatic reset mechanism, this module also can be reset though RAK5005 reset pin.
RAK3401 RA K2 11 Figure 7: Power up automatic reset 2.5.6 Flash Memory The RAK3400 module comprises a flash memory controlled by the SPI interface. The memory size is 8 MB. 7 Figure 8: Flash Memory. Power Consumption Table shows the power consumption characteristic of the RAK3401 module. Table 1: Power Consumption Item Power Consumption Condition Tx mode BT@4dBm 9mA BT Tx mode Rx mode BT@2Mbps 11.5mA BT Rx mode Sleep mode 2.0uA BT sleep 2.
RAK3401 VDD_NRF MCU power supply -0.3 - 3.9 V VBUS USB supply voltage -0.3 - 5.8 V VBAT_NRF MCU high voltage power supply -0.3 - 5.8 V ESD HBM Human Body Model - - 2000 V ESD CDM Charged Device Model - - 500 V RA K2 11 2.7 Recommended operating conditions Table shows the recommended operating conditions of RAK3400. Table 3: Recommended operating conditions Symbol Description Min. Nom. Max. Unit VDD_NRF NRF52840 power supply 2.0 3.3 3.
RAK3401 Statement 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, and (2) this device must accept any interference received, including interference that may cause undesired operation. RA K2 11 FCC Caution: Changes or modifications not expressly approved by the part responsible for compliance could void the user's authority to operate the equipment.
