The WisBlock Mini Base Board – RAK19003 is the smallest WisBlock base board, designed to carry one WisBlock Core MCU module and up to two WisBlock modules (including Sensor, Power, or Interface modules) via 24-pin WisConnectors.
 
It is ideal for engineers, makers, and developers who need a compact, low-power solution for prototyping or production-ready designs.
 
The RAK19003 supports three power input options:
 
5V USB
3.7V LiPo battery
5V Solar panel (or a combination of the above)
 
This flexibility makes it perfect for both development and low-power, battery-operated deployments.
 
Key Features & Benefits:
 
Ultra-Compact Size: Only 30×35mm – fits into the smallest enclosures
Carries One Core + Two Modules: Ideal for simple WisBlock solutions
Triple Power Options: USB, LiPo, solar input supported
Low-Power Design: Power switching for sensor modules supported
Industrial-Grade: Ready for mass production use
 
This base board makes it easy to prototype, test, and scale IoT applications, from early development to full deployment.