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ArduECU MK1U Contents:

  • Qty 1: ArduECU Controller main board (your choice of MK1U-01, MK1U-02, MK1U-03, MK1U-04, MK1U-05, MK1U-06-- please choose your variant accordingly per ArduECU MK1U Variations section)
  • Qty 1: ArduECU Waterproof Housing (custom laser etched housing)
  • Qty 1: ArduECU 32 Pin Header (pre-soldered onto main board)
  • Qty 1: Housing Opener Tool
  • Qty 1: Quick Start Guide (links to online technical documentation and Arduino example programs)


NOTE: Does not include Connector Set, SD card or Accessory Kit. Please order these items additional if necessary. Due to shipping regulations, orders ship without the CR2032 battery for the RTC-- as we cannot ship batteries in the mail. 


Features of the ArduECU MK1U Platform

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

  • Uses standard Arduino Uno or Arduino Uno WiFi  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 boards to pick and choose your supplier

  • CE compliant for sales in EU


Power Requirements:

  • Recommended Operating Voltage: 7-12VDC

  • Operating Voltage Limits: 6-20VDC (extended limits when using Rugged Circuits RuggeDuino)

  • 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)


  •  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


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

  • 6 Analog Inputs (0-5VDC)

  • DC Current Per Pin: 40mA (max)

  • Additional Input/Output capability when using Rugged Circuits RuggeDuino add-on

Environmental Ratings:

  • Operating Temperature: -40F to 158F

  • Storage Temperature: -58F to 185F

  • Water Resistance: IP69K (per IEC660529)



  • CE (WEEE 2012/19/EU, RoHS 2011/65/EU, EMC 2014/30/EU, Radio Equipment Directive 2014/53/EU)


**Reference the full specs of the Arduino Uno R3 here.


**For those who would like to upgrade their unit to Rugged Circuits RuggedDuino, please reference the specs here (Note that the RuggeDuino is only available for sale in USA and Canada)


*Note that the above features are Variant dependent. Please choose your model accordingly per the chart "ArduECU MK1U Variations"

ArduECU MK1U Electronic Controller Unit

  • 1. Shipping cost added to order at Checkout.

    2. Every unit is made-to-order. Current lead time is 3-5 business days. Please allow for 3-5 business days for processing your shipment.

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