The WisBlock Base Board (RAK19003) serves as the foundational carrier board for the WisBlock ecosystem. It hosts the WisBlock Core MCU module and supports two WisBlock modules through its 24‑pin WisConnector interface. This design enables engineers and makers to rapidly build prototypes, evaluate different sensor types, and develop applications with minimal hardware effort. Because all WisBlock components and modules are industrial‑rated, transitioning from development to mass production is straightforward. The RAK19003 supports three standard power supply options: 5V USB, 3.7V LiPo batteries, and 5V solar panels, with the flexibility to use them individually or in combination depending on application requirements. The board also enables low‑power operation by allowing the power supply for WisBlock Sensor modules to be switched on or off as needed. With a compact footprint of 30 × 35 mm, the WisBlock Base Board allows the creation of solutions that fit into very small enclosures. Product Features Easy Plug'n'Play slots for WisBlock Core MCU, small WisBlock Sensor, WisBlock Extra, small WisBlock Storage and WisBlock Power modules Small form factor Supports 3 different power supply sources Optimized for low power consumption applications I2C, UART, GPIO's an analog input accessible with solder contacts 2 user-definable LED's Reset button USB Type C debug port 1 slot for WisBlock Core MCU 2 slots for modules with 24pin WisConnector Package Inclusion 1pc RAK19003 1pc USB type C cable 1set screws (kit) Documentation RAK19003 Quick Start Guide Datasheet WisBlock Quick Start Guide WisBlock Source Code Repository(opens new window) RAK19003 3D Model(opens new window) 24-Pin Female Connector 3D File (Sensor Slot)(opens new window) 40-Pin Female Connector 3D File (Core Slot) 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 How to Create Custom WisBlock Sensor or WisBlock IO Module 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 IoT Breakthroughs Fast with the WisBlock System! RAKwireless Announces Partnership with One Planet Education Network (OPEN) to Launch STEM IoT Sensor Kits for Schools Worldwide RAKwireless Launches New Modular Product Series - WisBlock New WisBlock Modules in RAK Autumn Launch WisBlock Success Stories Enology + IoT = Great Wine A winery modernization by Enotek Saving the Wetlands with a Solution from The Group Lab