Embedded Control Board + SPACE IO Shield + Dual Relay Module – Arduino & ESP8266 WiFi




This Embedded Control Module mounts a dual relay module to Adosia’s SPACE IO board with your choice of Arduino Uno compatible (x4 analog) or Wemos D1 (WiFi / x1 analog) baseboard.

This product ships with a 12V/1A DC power supply and can optionally be preprogrammed with sample code.

SPACE IO Board Features:

  • x2 diode-protected transistor switch channels to safely drive pumps or solenoids
  • x2 digital IO pins tied to 4.7kΩ pullups (ie, water level switch or temperature sensor)
  • x2 digital IO pins tied to dual 5V relays (15A @ 120VAC or 10A @ 240VAC)
  • up to x4 analog ports (x3 expandable with Arduino Uno), bright onboard RGB LED
  • breakout voltage supply headers providing 2x GND, 2x 3.3v, 2x 5v and 2x Vin
  • can be readily programmed using the popular Arduino IDE


  • custom control systems / home automation
  • gardening / hydroponics / aquaponics
  • personal cultivation feeder control systems
  • refill water reservoir on detecting low water
  • temperature sensor triggered fan control
  • lighting / appliance power control
  • wide array of WiFi / IoT / relay applications

sample code available here

*recommended supply voltage Vin = 12V
* transistor/diode switch channels can drive up to 450mA at supply voltage Vin
* relays trigger on programmatic LOW


Additional information

Weight 3 oz
Dimensions 3 x 2 x 1 in
Arduino Compatible or ESP8266 WiFi

Arduino Uno (x4 Analog), ESP8266 (x1 Analog w/ WiFi)

Preload Software

none (hardware only), automatic garden, hydroponic garden, ultimate feeder


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