The RAK13003 WisBlock IO Expansion Module extends the digital capabilities of your WisBlock Core by adding 16 bidirectional input/output pins, powered by the Microchip MCP23017 interface chip.
 
It enables greater control for complex projects such as automation, monitoring, and industrial system design — all through a fast I²C interface.
 
The module also supports configurable interrupts, allowing efficient event-driven programming. With low standby current and wide operating voltage, the RAK13003 provides robust and reliable expansion for WisBlock projects across industrial, educational, and prototyping environments.
 
Key Features
 
Adds 16 additional bidirectional digital I/O ports to WisBlock systems
Based on the reliable Microchip MCP23017 I/O expander
High-speed I²C communication for smooth integration
Independent or combined interrupt lines (INTA / INTB)
External reset input for flexible control design
Low standby current (1 µA max)
Compatible with WisBlock Base and Core modules
Compact 25 × 35 mm module suitable for embedded and industrial builds
 
Ideal For
 
Building automation and control systems
Expanding digital control in robotics or machinery
Production line or process monitoring
Educational and prototyping projects requiring many I/O pins
Smart agriculture and environmental sensor hubs