The CANABLOX® ATmega328 MCU Module CX-AT328-MH is like an Arduino UNO R3 in the CANABLOX® Form Factor “MH” (2×1 Slot) and operating on 3.3V. You program it using the Arduino IDE and selecting the Arduino UNO board. Make sure that external devices use 3.3V logic level.
The on-board CH340K USB-UART provides connection to a host computer for programming, debugging and monitoring.
Code example:
Since this module is compatible with Arduino UNO R3 and Arduino Nano V3, you will find plenty of code examples within the Arduino IDE.
This is in the bag:
1 x CANABLOX® module
1 x male pin header 4-pin
3 x screw terminal 8-pin
1 x CANABLOX® I2C Cable 10cm
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:










