M5Stack Capsule Kit v1.1 with M5StampS3A

The M5Stack Capsule v1.1 with M5StampS3A packs motion sensing, audio input, battery power, storage expansion, and wireless control features into a compact enclosure, making it a versatile platform for IoT, data logging, and embedded development projects.

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The M5Stack Capsule v1.1 with M5StampS3A is an iterative upgrade of Capsule M5Stamp S3, with the core upgrade being the replacement of the main controller from Stamp-S3 to Stamp-S3A, further optimizing hardware performance and user experience.

The Capsule v1.1 integrates sensing acquisition, power supply, data storage, and main controller drive into one unified function. It features a high-performance BMI270 IMU inertial measurement unit for precise motion trajectory tracking and attitude control. It incorporates an SPM1423 microphone supporting audio recording, voice recognition, and voice wake-up functions, and includes an infrared sensor for remote control operation. The power configuration includes a built-in 250mAh battery and supports external expansion batteries to ensure stable long-term operation.

It has an onboard microSD card slot for flexible storage expansion, meeting data logging and media file storage needs. Equipped with an RTC8563 real-time clock module, it provides accurate time and date information and supports timed wake-up, effectively achieving low-power operation. The device integrates a buzzer for sound prompts and status feedback, and has a reserved Proto pin header expansion interface for freely connecting various custom sensors and expansion boards, suitable for diverse project development needs.

The body is built-in with four strong magnets and two M3 screw fixing holes, supporting magnetic placement and screw installation, greatly broadening usage scenarios. This product can be applied to IoT setups, embedded development, environmental sensing monitoring, smart terminal data collection, and various project scenarios.

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Features

• Integrated buzzer for status feedback
• Integrated BMI270 attitude tracking
• Supports microphone and infrared remote control
• Built-in 250mAh battery & external battery support
• Built-in RTC8563 for timed wake-up
• Development Platform
  • UiFlow2
  • Arduino IDE
  • ESP-IDF
  • PlatformIO

Specifications

SoC	ESP32-S3FN8
Flash	8MB
6-Axis Attitude Sensor	BMI270
MEMS Microphone	SPM1423
Clock Chip	BM8563
Battery Capacity	250mAh
Infrared Remote Distance	∠180°: 330CM (straight line) ∠90°: 48CM ∠45°: 134CM
Sleep Current	Battery powered DC 4.2V@35uA
Operating Current	Battery powered DC 4.2V@144mA
Product Size	40.0 x 24.0 x 16.2mm
Product Weight	18.7g

Product Comparison

Core Module	Stamp-S3A	StampS3
Antenna Design	Optimized design, stronger signal	Standard design
StampS3 Module Boot Button	Optimized button feel, button specification 4.0 x 3.0 x 2.0mm	Button specification 2.6 x 1.6 x 0.55mm
Power Consumption	Optimized for lower power consumption	Standard design

Resources

• Documents

Package Contents

• 1x M5Stack Capsule Kit v1.1 with M5StampS3A