Introduction
The M5Stack Cardputer Kit is a card-sized portable computer designed for engineers and enthusiasts. It features the M5StampS3 development board, based on the ESP32-S3 chip, offering a powerful dual-core processor and Wi-Fi capabilities. This compact device integrates a 56-key keyboard, a 1.14-inch TFT screen, a digital MEMS microphone, and a built-in speaker, making it suitable for rapid functional verification, industrial control, and home automation systems. It also includes an infrared emitter for external device control and a HY2.0-4P interface for expanding I2C sensors. Storage can be expanded via a Micro SD card slot. The Cardputer is powered by an internal 120mAh battery and an additional 1400mAh battery in the base, with integrated charging and voltage regulation circuits. Its base incorporates a magnet and is compatible with building brick hole extensions for creative designs.
Key Features
- Micro SD card slot for expanding storage space.
- The built-in 120mAh and 1400mAh lithium battery in the base provide long battery life.
- 1.14 Inch TFT Screen, keyboard, and a Base with a magnet.
- Cavity speaker and SPM1423 digital MEMS microphone.
- HY2.0-4P port for connecting and expanding I2C sensors.
Product Overview
The M5Stack Cardputer Kit, a compact development device with a keyboard and screen.
Detailed diagram highlighting key components: 1.14" IPS-LCD, 1400mAh battery, magnet, speaker, 120mAh internal battery, 56-key keyboard, and various ports.
Rear view of the Cardputer showing the pinout diagram for the ESP32-S3, IPS-LCD, and various interfaces including WiFi, keys, speaker, microphone, IR, Grove, and battery connections.
Side view of the Cardputer, highlighting the Grove port (G 5V, G2, G1) and 5V input/output connections.
Side view of the Cardputer, showing the USB-C port for power and data transfer, along with speaker grilles.
Top-down view of the Cardputer's 56-key QWERTY keyboard, including function keys and special characters.
Rear view of the Cardputer, showing the Micro SD card slot, power switch (OFF/ON), reset button (BtnRst), and infrared emitter (IR G44).
Setup
- Charging: Connect the Cardputer to a 5V USB-C power source using the USB-C port on the side. The device has built-in battery charging and voltage regulation circuits.
- Power On/Off: Locate the power switch on the rear of the device and slide it to the 'ON' position to power on. Slide to 'OFF' to power off.
- Micro SD Card Installation: Insert a FAT32 formatted Micro SD card into the Micro SD card slot on the rear of the device for expanded storage. Ensure it clicks into place.
- Initial Boot: Upon first power-on, the device may display a default application or require firmware flashing. Refer to M5Stack's official documentation for specific firmware installation instructions.
Operating the Cardputer
Keyboard Usage
The Cardputer features a 56-key QWERTY keyboard. Standard typing functions are available. Special characters and functions may be accessed using the 'Fn' key in combination with other keys, as indicated by the keycap legends.
Display Interaction
The 1.14-inch TFT screen displays information from the running applications. Navigation and interaction with on-screen elements are typically performed via the keyboard or programmed inputs.
Audio and Microphone
The built-in cavity speaker allows for audio playback. The SPM1423 digital MEMS microphone supports voice operations such as recording and wake-up functions, depending on the loaded firmware.
Infrared Control
The integrated infrared emitter enables control of external devices like TVs or air conditioners, provided the appropriate IR codes are programmed into the Cardputer.
Expanding Functionality (HY2.0-4P Port)
The HY2.0-4P port allows for the connection of I2C sensors, such as temperature, humidity, light, or pressure sensors. This port expands the device's capabilities for various projects and applications.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid liquid cleaners or abrasive materials.
- Storage: Store the Cardputer in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, especially if storing for extended periods.
- Firmware Updates: Periodically check the M5Stack official website for firmware updates to ensure optimal performance and access to new features.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery; Power switch off; Firmware issue. | Charge the device; Ensure power switch is ON; Attempt to re-flash firmware if necessary. |
| Micro SD card not detected. | Incorrect format; Improper insertion; Card fault. | Ensure card is FAT32 formatted; Re-insert card firmly; Try a different Micro SD card. |
| Screen is blank or unresponsive. | Firmware error; Hardware malfunction. | Perform a hard reset (using the reset button); Re-flash firmware. If problem persists, contact support. |
| Wi-Fi connectivity issues. | Incorrect network settings; Signal interference. | Verify Wi-Fi credentials; Ensure device is within range of Wi-Fi source; Check for firmware updates related to Wi-Fi. |
Specifications
- Model: K132
- Brand: M5Stack
- Processor: 240 MHz Espressif (ESP32-S3)
- RAM: LPDDR
- Memory Storage Capacity: 8 MB
- Wireless Type: 802.11bgn (Wi-Fi)
- Operating System: Linux (typically custom firmware based on ESP-IDF)
- Item Weight: 3.27 ounces
- Product Dimensions (LxWxH): 3.31 x 2.13 x 0.78 inches
- Color: Grey
- Batteries: 2 Lithium Metal batteries required (included) - 120mAh (internal) + 1400mAh (base)
- Display: 1.14 Inch TFT Screen (IPS-LCD ST7789V2)
- Keyboard: 56-key
- Audio: Cavity speaker, SPM1423 digital MEMS microphone
- Expansion Ports: HY2.0-4P (I2C), Micro SD card slot
- Other Features: Infrared emitter, magnetic base, building brick hole extensions compatibility.
Warranty and Support
For warranty information and technical support, please refer to the official M5Stack website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Online Resources: M5Stack Official Website
