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Cardputer v1.1

SKU:K132-V11

Description

Cardputer v1.1 is a high-performance card computer designed for engineers, offering a comprehensive upgrade over the original Cardputer. The new version features the brand new StampS3A main controller, with optimized antenna and button design for the core module, significantly enhancing system stability and user experience. In terms of control interaction, the product is equipped with a 56-key keyboard and a 1.14-inch TFT screen for efficient display and operation; it includes an onboard SPM1423 digital MEMS microphone supporting recording and wake-up functions, and outputs audio through a cavity speaker. Additionally, an infrared emitter provides external infrared control interaction capabilities. For expansion, the built-in Grove interface facilitates custom sensor expansion; for storage, a Micro SD card slot is available for easy storage expansion. The power system uses an internal 120mAh and a base 1400mAh lithium battery power solution, integrating lithium battery charging and boost-buck circuits, greatly enhancing battery life. Structurally, the base includes magnets for metal attachment and is compatible with LEGO hole expansion. This product is widely applicable in various scenarios such as rapid function verification for engineers, industrial control, and home control systems.

Tutorial

This tutorial will introduce you to programming and controlling the Cardputer v1.1 device using the Arduino IDE
This tutorial will introduce you to controlling the Cardputer v1.1 device using the UIFlow 2.0 graphical programming platform

Note

LCD and RGB LED Usage Precautions
Since the RGB and LCD backlight share a power source, when the LCD backlight brightness is below 100%, the RGB cannot be powered properly. Please use the RGB function with the backlight brightness fully on.

Features

  • StampS3A 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
  • Micro SD card slot
  • Built-in 120mAh and 1400mAh lithium battery in the base
  • Base with magnets
  • Compatible with LEGO hole expansion
  • Development platforms
    • Arduino
    • UIFlow 2.0
    • ESP-IDF

Includes

  • 1 x Cardputer V1.1
  • 1 x L-shaped hex wrench 1.5mm (for M2 screws)

Applications

  • Rapid 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

Specification Parameter
StampS3A ESP32-S3 (Xtensa LX7), 8MB Flash, Wi-Fi, OTG, CDC
Flash 8MB
Storage SD Card
Keyboard 56 keys (4 x 14)
Buttons 1 x Reset button + 1 x User button
Grove 1 x HY2.0-4P
Battery Capacity 120mAh + 1400mAh (in base)
Screen ST7789V2@1.14 Inch, 240 x 135px
Cavity Speaker 8Ω@1W
I2S@NS4168
Microphone MEMS Microphone@SPM1423
Infrared Distance ∠0° Infrared emission distance (straight line): 410cm
∠90° Infrared emission distance: 66cm
∠45° Infrared emission distance: 170cm
Sleep Current DC-4.2V@0.15uA
Working Current IR emission mode: DC-4.2V/148.07mA
Keyboard mode: DC-4.2V/138.93mA
Operating Temperature 0 ~ 40°C
Product Dimensions 84.0 x 54.0 x 19.7mm
Product Weight 90.0g
Package Dimensions 145.7 x 95.0 x 20.7mm
Gross Weight 106.8g

Learn

Download Mode
To enter download mode, hold the G0 button on the side of the Cardputer v1.1 before powering on, then release after the device is powered on to enter download mode.
schematics
Charging Precautions
When charging the Cardputer v1.1, please switch the power to "ON".
Disassembly Precautions
If you need to remove the StampS3A from the panel, be careful with the FPC cable and connector on the back, gently pull it out to avoid damaging the screen connector. Refer to the operation video in the Cardputer Accessory Kit .

Schematics

PinMap

Grove Interface

StampS3A G1 G2 5V GND
Cardputer v1.1(PORT.A) SCL SDA VCC GND

SPM1423 MIC

StampS3A G46 G43 3.3V GND
SPM1423 DAT CLK VCC GND

Micro SD Socket

StampS3A G12 G14 G40 G39
Micro SD Socket CS MOSI CLK MISO

ST7789V2 & RGB LED

StampS3A G38 G33 G34 G35 G36 G37
ST7789V2 DISP_BL RST RS DAT SCK CS
RGB LED VDD

Keyboard & Battery Detect

StampS3A G10 G7/G6/G5/G4/G3/G15/G13 G11/G9/G8
Battery Detect(ADC) ADC
74HC138 Y7~Y0 A2/A1/A0

Speaker & IR

StampS3A G41 G42 G43 G44
NS4168 (Speaker) BCLK SDATA LRCLK
IR TX

Model Size

module size

Datasheets

Softwares

Arduino

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

Easyloader

Easyloader Download Link Note
Cardputer v1.1 User Demo Easyloader download /

Video

  • Cardputer v1.1 Product Introduction and Case Demonstration

Product Comparison

Comparison Item Cardputer v1.1
Cardputer v1.1
Cardputer
Cardputer
Core Module StampS3A StampS3
RGB LED Control Logic RGB LED shares power with screen backlight, optimized control logic Power supplied when powered on
Antenna Design Optimized antenna design for better signal reception Standard antenna design
Button Specifications Optimized button feel, buttons are 4.0 x 3.0 x 2.0mm Button specifications 2.6 x 1.6 x 0.55mm
Power Consumption Optimized for lower power consumption Standard design