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Download the Technical Manual below:








  • Converts your standard Arduino Uno into a waterproof and more durable one

  • Compatible with any standard Arduino Uno, Arduino Uno WiFi or RuggedDuino board which plugs in via on-board headers

  • On-board prototyping area for building a custom, waterproof, rugged, Arduino-based ECU

  • Rugged IP69K waterproof rated housing for use in harsh, moist environments

  • Breaks out Arduino pins to External waterproof header connector for interfacing to sensors and external hardware via your custom wire harness (wire harness with flying leads available)

  • Compatible with Standard Arduino IDE and the open-source initiative

  • Interface to serial communications via external header (or via internal USB , or wireless Wi-Fi)

  • Built-in XBee footprint for adding modules such as Wi-Fi, Bluetooth, 900 MHz, 2.4 GHz radio, GPS, Cellular Modem or other XBee compatible electronic interfaces

  • Built-In SD card slot for on-board data logging

  • Built-In Real Time Clock for Time-stamping your data

  • Built-In 3-Axis Accelerometer for motion sensing applications

  • Create IoT (Internet of Things) projects with ease via cloud-based dashboards for viewing or using your data (ex. Cayenne-mydevices, Ubidots, Thingspeak, etc.) 

  • Order with or without Arduino Uno microcontroller board

**Reference the full specs of Arduino Uno here

Power Requirements:

  • Recommended Operating Voltage: 7-12VDC 

  • Operating Voltage Limits: 6-20VDC

  • Microcontroller Operating Voltage: 5VDC

Reference Voltages:

  • 5VDC Reference @ approx 500mA max. (250mA or less recommended)


  • Serial (x1 capable internal and external)

  • SPI (x2 capable internal and external)

  • I2C (x1 capable internal and external)

  • USB (x1 capable via Internal USB connector)

Processor (Arduino Uno Specs):

  •  Atmega 328P CMOS, 10-Bit ADC @16MHz (with/without Wi-Fi)

  • 32kB In-System Self Programmable Flash Memory, 1kB EEPROM, 2kB Internal SRAM

  • Write/Erase: 10k-Flash, 100k-EEPROM

  • Data retention: 20 years at 85C, 100 years at 25C

Inputs/Outputs (Arduino Uno Specs):: 

  • 14 Digital Inputs/Outputs (6 of which provide PWM output)

  • 6 Analog Inputs (0-5VDC)

  • DC Current Per Pin: 40mA (max)

Environmental Ratings:

  • Operating Temperature: -40F to 158F

  • Storage Temperature: -58F to 185F

  • Water Resistance: IP69K (per IEC660529)


  • CE

  • WEE

  • RoHS










ArduECU MK1U Schematics:





























Arduino Uno R3 Pinout:

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