M5Stack Cardputer: a computer in the palm of your hand

M5Stack Cardputer

Today we present you a new toy for your collection. As a good maker, you will surely like this M5Stack Cardputer, basically it is a computer the size of a small card and is based on the wireless connectivity module M5Stamp S3, with ESP32-32. A complete piece of equipment including its own keyboard with 56 keys, 1.14″ TFT screen, sensors and expansion ports to connect peripherals.

This toy was difficult to imagine a long time ago, but the advancement of technology and electronics has allowed this company to package a complete computer in such a small space, and that you can use connected to WiFi for a multitude of functions, such as industrial control, automation systems, home automation, etc. The truth is that the number of projects you can create is many, and even add a Bluetooh keyboard, IR control for televisions, air conditioners, audio recording, music player, pocket chat, etc.

The M5Stack Cardputer ships only with a hex wrench that allows you to remove the case and explore its interior if necessary, and includes a demo program using ESP-IDF, a library for Arduino IDE with basic examples to start making projects, etc.

M5Stack Cardputer: technical specifications

As for the Technical specifications of the M5Stack Cardputer, we have to highlight the following:

  • MCU (microcontroller) module with Wireless connectivity: M5Stack M5Stamp S3:
    • SoC: Espressif Systems ESP32-S3FN8 32-bit DualCore, Xtensa LX7 microcontroller with vector instructions for AI, clock frequency up to 240MHz, RISC-V ULP coprocessor, 512KB SRAM, 2.4GHz WiFi 4 (802.11b/g/n) , Bluetooth 5.0 BLE + Mesh, 8MB flash memory to store programs.
    • 3D antenna for 2.4GHz 3D WiFi frequency.
    • USB-C port.
    • I/O expansion connectors: SPI, I2C, UART, ADC, etc.
  • Storage: microSD memory card slot.
  • 1.14-inch IPS LCD screen with a 240×135 px resolution and ST7789V2 driver.
  • Audio: 1W speaker (NS4148) and integrated microphone (SPM1423).
  • 56-key keyboard (4x 14-key matrix).
  • Expansion connector: Grove with I2C (5V)
  • Features:
    • Reset button.
    • On and off button.
    • IR (infrared) transmitter.
    • Magnet to stick to the refrigerator, blackboard, etc.
    • Compatible with LEGO extensions.
  • Feeding:
    • 1.400 mAh + 120 mAh Li-Ion battery
    • Integrates battery charger and voltage regulator.
    • Charge via USB-C cable on the M5Stamp S3 module.
  • Energy consumption:
    • Standby: 0.26 uA @ 4.2V
    • Working:
      • Key mode: 165.7 mA @ 4.2V
      • IR mode: 255.6 mA @ 4.2V
  • Sizes: 84x54x17mm
  • Weight: 92.8 g

And all this for only $29.90!

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