CANABLOX® Current Sensor Module I2C 0.0003mA to 1000mA (CX-INA219-S)

The CANABLOX® Current Sensor Module CX-INA219-S is a High-Precision Sensor based on the INA219 chip with three different shunt resistors to cover three optimized measuring ranges (use only one at the time):

• 10 mA with 0.0003mA resolution
• 100 mA with 0.003mA resolution
• 1 A with 0.03mA resolution

The module provides both current and bus voltage measurements, delivering accurate power and energy monitoring for projects from ultra-low-power circuits to higher-load applications.

Selectable I2C address: 0x40, 0x41, 0x44

Code example:
Download a demo sketch (tested with XIAO ESP32C6) that sends the raw current reading to the serial monitor.
The header and comments within the demo sketches explain in high detail how it works.

PDF Datasheet:
Download INA219 PDF Datasheet
Download CANABLOX®  CX-INA219-S Datasheet

This is in the bag:
1 x CANABLOX® module
1 x male pin header 4-pin
1 x screw terminal 4-pin
1 x CANABLOX® I2C Cable 5cm

Note:
Through-Hole (TH) connectors, like the I2C pin header or screw terminals, are included but not factory assembled.

The CANABLOX® ecosystem

CANABLOX® is a modular, clean, stackable ecosystem that replaces the chaos of traditional prototyping with I2C-connected building blocks.

CANABLOX® is not just a hobby tool; it’s a stepping stone from prototype to finished product. With over 60 modules envisioned, from environmental sensors to serial bridges and audio applications, CANABLOX® becomes a platform, not just a product.

Every CANABLOX® module connects directly to a sturdy baseplate or standardized cables, letting you build solid, real-world systems - without the clutter.

All modules use standardized CANABLOX® slot sizes and can be connected either through 4-pin JST-SH cables (compatible with Qwiic and Stemma QT) or by direct mounting onto the baseplate with headers. Every baseplate includes I2C headers (not assembled) and mounting hardware.

Baseplate sizes:

Layout examples: