IO Extension Module

Product Summary

RAK5804 is a WisBlock IO which extends the WisBlock system with a wide range of additional IO's.

Editorial narrative

RAK5804 is a WisBlock IO which extends the WisBlock system with a wide range of additional IO's. It is the solution to connect your own sensors, displays, or buttons to your WisBlock solution. RAK5804 exposes IO pins and I2C and UART to the user's application ports through 3 connectors. Users can connect through these connectors, sensors, digital I/O, analog I/O, and slave devices through the I2C and UART ports in order to complete their final IoT solution. RAK5804 combined with the RAK4631 WisBlock Core gives your solution an interface to non-standard sensors and user interfaces. This interface is the bridge between such sensors and LoRaWan® communication, LoRa® point to point connections or BLE. RAK5804 is ideal for battery-powered applications because the WisBlock system allows to power down the module complete to reduce the power consumption of the system even more. The circuits are as well protected by TVS and prevent output power overload with a PTC thermistor. Key Features IO extension module with analog inputs, digital GPIO's, I2C, Serial and USB interface. Low power consumption Small form factor TVS protected circuits PTC thermistor to prevent output power overload Supported Ports 1 USB port 2 I2C port 1 Serial port 4 Digital IO 1 Analog input port 2 LED outputs 1 button input Package Inclusion 1pc RAK5804 1pc cable Documentation RAK5804 Quick Start Guide Datasheet WisBlock Quick Start Guide WisBlock Source Code Repository (opens new window) RAK5804 3D Model (opens new window) 40-Pin Male Connector 3D File (opens new window) WisBlock Interface Tutorial Tutorials WisBlock Starter Kit and RAK Edge Gateway Complete LoRaWAN Guide Installation of Board Support Package in Arduino IDE The Icing on the Cake: A Template to Innovate Custom IoT Applications with RAKwireless and Datacake Check Hackster Projects Articles Choosing Between WisBlock Modules For Your Next IoT Project? Take A Quiz! Why We Make WisBlock: The Story Behind RAK’s Modular IoT Platform Build your

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• Last verified: 2026-06-01