M5StampS3 Grove Breakout with 1.27mm Header Pins

The StampS3 GroveBreakOut is an expansion board for the M5StampS3, featuring six Grove connectors compatible with M5's port A/B/C standards (I2C, IO, and UART). It has an integrated holder for 16340/18350 lithium batteries and a 1.25mm@2P lithium battery connector for independent system power.

The board includes battery and USB power selection switches, touch switches for reset control, a lithium battery charging chip, and a 5V boost system. Mounting holes make installation easy, making it ideal for educational projects, IoT, wearables, automation, and robotics.

Note: The StampS3 Grove Breakout only supports the M5StampS3 with 1.27mm Header Pins

Features

• Multi-Grove interface compatibility
• Independent power system
• Charging and power detection
• Power supply switching and reset control

Specifications

Grove interface	6x Grove (I2C/GPIO/UART)
Battery	16340/18350 Lithium battery specifications
Bar specification	1.25mm & 2.54mm
Lithium battery interface	1.25mm@2P
Grove interface Specifications	HY2.0-4P
Fixed hole size	Diameter 3mm
Operating Temperature	0- 40°C
Product Size	47.5 x 38 x 23.2mm
Package Size	75 x 45 x 29mm
Product Weight	10g
Package Weight	22.1g

Resources

• Product Wiki

Package Contents

• 1x StampS3 Grove Breakout