24-Channel DPDT Signal Relay Shield + 8 GPIO with IoT Interface

Features
  • 24-Channel Relay Controller with IoT Interface
  • 8-Channel Programmable TTL/CMOS GPIO
  • Compatible with Electron, Photon, Bluz, or RedBear
  • Adaptable to Onion, PyCom, Raspberry Pi, Arduino
  • MCP23017 I2C Controlled Mechanical DPDT Relays
  • Choose 1, 3, or 5-Amp DPDT Signal Switching Relays
  • World’s Most Expandable Controller with I2C Expansion Port
  • Wireless Remote Operation with Key Fob Expansion Option
  • ESP8266 and USB IoT Interface Modules are Also Available
  • IFTTT Firmware Available for Internet Relay Control
  • Example Libraries Available on GitHub
$ 431.95
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Description

This IoT 24-channel DPDT relay controller was designed to function as a shield for today’s most popular IoT communication modules, including Particle Photon, Electron, Bluz, Arduino, and many more.  On-board DPDT relays are ideally suited for control of telecommunications, audio, and other low-power switching applications. Each DPDT relay contains two separate switches that switch simultaneously with 6 connections for each relay.  DPDT Relays are available in 1, 3, or 5-Amp versions, customized when added to your shopping cart.

This controller is based on dual MCP23017 controllers, a common I2C interface chip for GPIO applications.  In this design, the GPIO port is used to control 24 onboard DPDT relays.  Eight programmable Digital Input/Output port pins are also available via screw terminals for use in Contact Closure detection applications or monitor and control external TTL circuits.  The I2C bus support up to 8 similar devices (based on the MCP23008 or MCP23017).  This controller counts as two devices on the I2C bus.  Two onboard address jumpers set the I2C start address of both MCP23017 interface chips.  On-board status LEDs display the on/off status of each relay.  This controller may be powered using our optional power supply or with 12VDC and direct screw terminal connection of bare power wires.  Each relay is accessible to the user via screw terminals, capable of accepting 14 AWG wires.

IFTTT

Leverage the power of IFTTT.com and Particle services to do almost anything.  Send a tweet if someone rings your doorbell, send a notification to your phone if someone opens a door, turn on almost anything right from your phone with a simple setup, the possibilities are endless.  NCD provides this controller with an optional pre-programmed Particle Photon module for easy connection to IFTTT.  No programming required!  Just use the simple IFTTT interface to set up your different configurations.

Powered By Particle

Give your Particle Photon the power to interact with the real world in ways never before possible.  Use the optional Particle Photon module pre-flashed with our custom IFTTT firmware, NCD compatible shields allow for control of many types of relays, monitoring digital and analog sensors, and much much more.  Chain I²C accessory boards to your system to add whatever you may need for your next control and automation project.

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