M5Stack Station ESP32 IoT Development Kit (RS485 Version)

Sale price £51.90
incl. VAT
excl. VAT
Only 10 units left

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The M5Stack Station ESP32 IoT Development Kit RS485 Version ('M5Station-485') is a multi-purpose industrial-level programmable embedded controller with an Espressif ESP32 SOC, integrated Wi-Fi and BT solution and a dual-core low-power Xtensa® 32-bit LX6 microprocessor with a main frequency up to 240MHz.

The controller has 16M FLASH onboard alongside an integrated 240x135 1.14" full-colour HD IPS display + physical keypad + rich peripherals, two sets of six expansion ports + low-power sleep/wakeup functions.

Users have multiple power supply options including USB Type-C, PWR485 and an external battery (battery socket reserved on board). The integrated high power density boost DC/DC converter SCT12A0DHKR on board ensures the stability of the electrical equipment even in complex applications.

This device is suitable for industrial control, intelligent buildings, multi-channel data acquisition nodes and prototyping applications.

We also stock the battery version of the M5Station.


  • 1.14" IPS display
  • 3 physical programmable keys
  • 1 ON/OFF button
  • 7 programmable RGB LEDs

Power Supply

  • Input:
    • Integrated 9~24V->5V DC/DC SY8303 Buck circuit
    • AXP192 power management chip
  • Output:
    • Each interface (6 Grove, 1 USB-A) is electronically switched on/off by SGM2553D.
    • INA3221 for voltage/current acquisition for Grove interfaces, and INA199 for current acquisition for the USB-A
    • Integrated high power density boost DC/DC converter SCT12A0DHKR
  • Low power consumption:
    • Integrated RTC BM8563 to achieve low-power sleep/wakeup function

Port Design

  • 6-way Grove expansion interface
    • Port A1/A2 shared the same power and signal pins
    • Port B1/B2/C1/C2 have separate power and signal pins
  • PWR485 interface (4-wire - VH3.96)
    • RS485
    • 9~24V power input
  • USB Type-A power supply output only, no signal pins

Mechanical Design

  • Din rail
  • Magnet
  • Wall Mount
  • Screws
  • Ribbon

Programming development

  • Supports UIFlow graphical programming platform, scripting, compile-free, cloud push
  • Fully compatible with Arduino, ESP32-IDF and other mainstream development platforms
  • Support FreeRTOS, with the help of dual-core and multitasking mechanism, efficient organization of task logic, optimize the execution efficiency of the program.

Power Management

  • Power on: Click the central power button.
  • Power off: Press and hold the central power button for 4 seconds.

Package Contents

  • 1x M5Station-485
  • 1x Type-C USB cable (100cm)
  • 1x HEX Key


ESP32-D0WDQ6-V3 240MHz dual-core
Flash 16MB
USB powered 5V@1A
RS485 power supply 9~24V@1A
Interface Type-C * 1
GROVE (I2C+I/0+UART) * 6
Full-Size USB Type-A (OUTPUT)
LEDs SK6812 * 7
Pushbuttons Power Button, Physical Button \ 3
IPS LCD Screen 1.14"@240*135 ST7789V2
RTC BM8563
Voltage/Current Collector INA3221 + INA199
USB Chips CH9102F
Step-Down Chips SY8303
Power Distribution Switch SGM2553D
Antenna 2.4G 3D Antenna
Operating Temperature 0°C to 60°C
Base Screw Specification Hexagon socket cup head M2*8 screw
Internal PCB reserved interface Battery interface (Specification:1.25mm-4P)
USB line interface (Specification:1.25mm-4P)
Net Weight 63.1g
Gross Weight 108.1g
Product Dimensions 92 x 64.5 x 35 mm
Package Size 104.5 x 70.5 x 50mm
Case Material ABS+PC


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