M5Stack Atomic ToUnit Base

The Atomic ToUnit Base by M5Stack is an interface adapter specifically developed for controllers of the ATOM series. The module converts the bottom expansion I/O pins of the ATOM controller into a male HY2.0-4P connector. This allows M5Stack Unit devices to be directly connected to ATOM controllers without additional wiring. An integrated DIP switch enables flexible configuration of the I/O pin mapping according to the requirements of the respective project. This adapter allows ATOM and Unit devices to seamlessly connect, enabling a variety of application scenarios. The compact design perfectly fits the ATOM form factor and maintains the modular concept. The module is ideal for prototyping and rapid sensor integration into existing ATOM projects.

Recommended Accessories:

• M5Stack AtomS3 Dev-Kit with 0.85inch Color Display
• M5Stack AtomS3 Lite
• MStack Unit

Features:

• HY2.0-4P Grove connector allows direct connection with M5Stack Unit devices.
• Integrated DIP switch offers flexible I/O pin mapping configuration.
• Compact design fits perfectly with the ATOM form factor.
• Simple plug connection without soldering or complex wiring.
• Modular concept extends the usage possibilities of ATOM controllers.
• Includes mounting accessories for secure fastening.

Application Examples:

• Quick integration of environmental sensors in ATOM-based IoT projects
• Prototyping with various M5Stack Unit modules
• Modular sensor nodes for smart home applications
• Educational projects to learn about sensors and microcontrollers
• Flexible test setups for various unit combinations

Documentation:

• M5stack Wiki
• Official M5Stack Forum

Technical Data:

• Manufacturer: M5Stack
• Manufacturer SKU: A161
• Connector: HY2.0-4P (male)
• Configuration: DIP switch for I/O pin mapping
• Compatibility: ATOM series (Atom Lite, Atom Matrix, AtomS3, AtomS3 Lite)
• Product dimensions: 30.2 × 24 × 13.1 mm
• Product weight: 4.6 g
• Packaging dimensions: 145 × 100 × 22 mm
• Gross weight: 8 g

Package Contents:

• 1× Atomic ToUnit Base
• 1× Hex key L-shape 1.5 mm (for M2 screws)
• 1× M2 × 10 mm screw (pan head, self-tapping)
• 1× DIP switch labeling sticker