M5Stack Tough ESP32 IoT Development Board Kit

by M5Stack

The M5Stack Waterproof ESP32 embedded controller TOUGH is Industrial grade programmable embedded controller featuring Espressif ESP32 chipset with integrated WiFi & Bluetooth dual mode.

It is equipped with dual-core low power Xtensa® 32-bit LX6 microprocessor with clock frequency up to 240MHz. A combination of 8M PSRAM + 16M FLASH memory , integrated 2.0-inch HD IPS display panel + high-sensitive capacitive touch screen + rich peripherals, expansion interface.

M5 TOUGH has full-coverage support dustproof and waterproof, which can ensure the stability of circuit operation even in complex industrial applications. The M5 TOUGH is ideal for industrial control, smart buildings, outdoor node data acquisition, and other applications.

Caution: Please DO NOT immerse the enclosure in water. There is no protection from immersion.

Structural Design:

  • Water-resistant with an 'o-ring sealing' contains Waterproof M12 Connectors can complete against solid objects, dust, sand, and dirt and against the effects of immersion.
  • UV resistant enclosure design
  • A variety of installations Screw, Rolled strip, Magnetic, Adhesive Back
  • Waterproof M12 Connectors

High integration:

  • 2 inches LCD capacitive Multi-touch screen
  • NS4168 16bits I2S power amplifier + 1W speaker
  • TFCard slot
  • AXP192 power management chip + BM8563-RTC clock -> Low-power power solution, Wake Up with an RTC Alarm Clock
  • Delicate RF circuit delivers robust and consistent wireless communication

Strong expandability :

  • Equipped with programable expansion board
  • Integrated with 12v->5V flexible DC/DC converter. flexible power supply
  • RS485 conversion circuit
  • PortA, B, C/ 3x Grove expansion interface
  • Easy access to M5Stack's software and hardware system, plug-and-play sensor expansion

Low code development:

  • Support UIFlow graphical programming platform, scripting-free, cloud push
  • Fully compatible with with Arduino, ESP32-IDF, and other mainstream development platforms
  • Executing Dual-core processor on FreeRTOS to run multiple tasks for better performance.


  • ESP32-D0WD-V3
  • 16MB Flash + 8MB PSRAM
  • Waterproof and Dustproof
  • UV resistant enclosure design protection
  • 2 inches LCD capacitive Multi-touch screen
  • Advanced low power techniques: Wake Up with an RTC Alarm Clock
  • Integrated with 12v->5V flexible DC/DC converter. Flexible power supply
  • RS485/I2C/GPIO/UART interface
  • Development platform:
  • Arduino/UIFlow/ESP-IDF


  • 1x M5Stack TOUGH
  • 1x Type-C USB(1m)
  • 1x 2.5mm hexagon wrench
  • 1x 1.25-2P single head terminal line
  • 1x 1.25-4P single head terminal line
  • 1x Waterproof O-ring


Specifications Parameters
ESP32-D0WDQ6-V3 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
Flash 16MB
Protection level Waterproof/Dustproof
Input voltage USB(5V @ 500mA) RS485 DC Input (12V @ 1A)
Interface TypeC x 1, GROVE x4 (RS485/I2C/G/UART interface)
IPS LCD 2.0"@320*240 ILI9342C full color display, maximum brightness 853nit
Touch Panel Driver Chip CHSC6540
Speaker configuration NS4168 16bit I2S amplifier + 1W speaker
RTC clock chip HY8563
USB chip CH9102 USB-TTL serial port/program download circuit
TF card slot Maximum support 16GB memory card
Antenna 3D-WiFi/BLE Antenna
Shell material UV-resistant plastic
Net weight 108g
Gross weight 139g
Product size 58 x 76 x 41 mm
Packing size 99 x 80 x 45 mm