Cardputer

SKU:K132

Description

Cardputer is a card-sized computer suitable for engineers, using M5StampS3 as the main controller. For control interaction, it is equipped with a 56-key keyboard and a 1.14-inch TFT screen for display interaction. Additionally, it has an onboard SPM1423 digital MEMS microphone for recording or wake-up operations, and a cavity speaker for sound playback. It also features an infrared emitter for external infrared control interaction. For expansion, it has an onboard Grove port for custom sensor expansion. For storage, it has a Micro SD card slot for storage expansion. For power supply, it is equipped with a 120mAh + 1400mAh (in the base) lithium battery solution to power the entire machine, greatly improving battery life, with built-in lithium battery charging and boost-buck circuits. Structurally, the base contains a magnet for metal adsorption, and the structure is compatible with LEGO hole expansion. This product is suitable for engineers for quick function verification design, industrial control, home control systems, and other scenarios.

Tutorial

Arduino IDE

Arduino IDE

This tutorial will introduce you to programming and controlling the Cardputer device using the Arduino IDE

UIFlow 2.0

UIFlow 2.0

This tutorial will introduce you to controlling the Cardputer device using the UIFlow 2.0 graphical programming platform

Features

• M5StampS3 microcontroller.
• 56-key keyboard.
• 1.14-inch TFT screen.
• Cavity speaker and SPM1423 digital MEMS microphone.
• Infrared emitter for infrared control interaction.
• HY2.0-4P interface for connecting and expanding I2C sensors.
• Micro SD card slot for storage expansion.
• Built-in 120mAh and 1400mAh lithium battery in the base for long battery life.
• Base with magnet, compatible with LEGO hole expansion.
• Development platforms:
  • Arduino
  • UIFlow

Includes

• 1 x Cardputer
• 1 x M2 Hex Wrench

Applications

• Quick function verification and prototyping
• Industrial control and automation
• Home control systems
• Data collection and sensor monitoring
• Embedded system development and learning
• Wireless communication and IoT projects

Specifications

Learn

Download Mode

To enter download mode, press and hold the G0 button on the side of the Cardputer before powering on. Release it after powering the device, and it will enter download mode.

Schematics

• Cardputer Schematics PDF
• Cardputer Base Schematics PDF

1/3

PinMap

PORT A

SPM1423 MIC

Micro SD Socket

ST7789V2

Keyboard&Battery Detect

Speaker&IR

Model Size

Datasheets

• SPM1423
• NS4168
• ST7789V2

Softwares

Arduino

• Cardputer Arduino Library
• Cardputer Button Example
• Cardputer Buzzer Example
• Cardputer Display Example
• Cardputer Keyboard Example
• Cardputer MIC Example

PlatformIO

[env:m5stack-stamp-s3]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
upload_speed = 1500000
build_flags =
    -DESP32S3
    -DCORE_DEBUG_LEVEL=5
    -DARDUINO_USB_CDC_ON_BOOT=1
    -DARDUINO_USB_MODE=1

lib_deps =
    M5Unified=https://github.com/m5stack/M5Unified

ESP-IDF

• Cardputer User Demo

Easyloader

Video

• Cardputer Introduction Video

FAQ

Question: How to implement OTA for wireless code upload?

• Step 1: Select the corresponding host development board and port
• Step 2: Open the BasicOTA code, modify the WiFi name and password, and after uploading, a new port will appear
• Step 3: Disconnect the host from the computer, ensure the computer and the host are on the same network as set in the code, power the host, select the virtual port, and you can wirelessly upload any program