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Features

  • 16-Channels of Open Collector Outputs
  • Up to 80ma per Channel
  • High-speed I2C Interface using MCP23017
  • Up to 8 Devices per I2C Port
  • 16 On-Board OC Output Status LEDs

$36.95

SKU: PR3B-24 UPC: 689860061651 Categories: ,

Description

This device consists of a MCP23017 general purpose input output port expander connected to two ULN2803 open collector output controllers. This device can be used to control up to 80ma of current per channel using I2C communications. Applications include control of small incandescent lights, relays, super-bright LEDs and other low-power devices. This device will connect or disconnect external loads to ground to turn them on or off. Voltage is applied to the external load with the ground connection flowing through this controller. Up to eight of these devices can be daisy chained to a single I2C port using 3 on-board address jumpers. The MCP23017 should be programmed to 8-Bit Output mode for proper operation, each open collector output is activated when bits are turned on. Eight on-board status LEDs are dim when outputs are off. LEDs glow bright when outputs are activated. Our example library makes it easy to use this device across many platforms.

Resources

Datasheets

Documentation Downloads

Community Repositories

Official Repository

Drawings

Buy Now

This product qualifies for:

  • Forum Support (fastest)
  • Direct Email Support

Standard Lead Times

Standard lead times are 3-5 business days as we manufacture and test the product at the time of order. Larger orders may require additional time.

Product Identification
SKU: PR3B-24
UPC: 689860061651
Country of Origin: US
HTS Code: 854231
1+ Pieces
$36.95/ea
10+ Pieces
$35.47/ea
25+ Pieces
$34.73/ea
100+ Pieces
$32.52/ea

Would you like a power supply?Change

NCD Controllers Need Power. Standard NCD Power Supplies use a 2.1mm Barrel Connector with 12VDC (center positive) rated at 1.25 Amps (minimum).

I2C Interface OptionsChange

NCD I2C Devices can plug directly into our IoT Interface Devices, but many users prefer to start small. Below, you will see a list of common interface shields that make it easy to plug our I2C devices into your favorite computing platform. Take advantage of our special discounts when buying our interface shields with our I2C devices.


Customize

We Customize Just for You!!

NCD offers many custom IoT electronic design services to help tailor our product to your exact needs.  Whether you are looking for custom firmware, circuit board modifications, metal enclosures, or industrial color printing, we can help you with a wide variety of design services.

Custom IoT Electronic Design Services Process

Most of our users purchase off-the-shelf hardware for initial testing.  Once everything is working, they contact us to build a custom solution which may include specialized changes to the board, firmware, connectors, etc.  Custom boards have many advantages such as reduced wiring, easy installation, small size, less power consumption, and in some cases, an overall reduction in product cost.  Custom IoT Electronic Design Services will have your company name and logo on the board as well as the enclosure.

Customized IoT Electronics

NCD engineers can help build a customized solution for your particular application based on the designs you see on our website.  We can combine devices onto a single board, change the shape, or even some of the components to meet your exact needs.  We also provide turn-key metal enclosures with powder coating and full-color printing on the top side starting at just $500 for setup!  We have more than 20 years of experience in electronics design and manufacturing.  All of our products are designed and manufactured in the USA, so we are here to support the products we make.  We only ask that our customers prototype their needs using our existing products before we customize.

Customization Guidelines

  • Custom designs should be based on our existing product because we can’t build rockets or electric cars over here!
  • We do not provide customization services if it involves the introduction of a new or untested technology.
  • Custom engineering fees depend on your requirements, so please contact us for a quote!
  • We maintain ownership of all designs, including our customized designs as they are based on our existing Design.
  • We will only ship the customized product to you or your authorized agents.
  • We have an NDA available if needed.
  • The turn-around time is about 2-3 weeks.
  • We specialize in low-volume designs, no quantity is too small!
  • We have the ability to scale to large volumes as needed.

Getting Started with Product Customization

All you have to do is contact us and we will walk you through the process from beginning to end, based on your individual needs.  Some people are surprised at how fast we finish CAD design (usually a few hours), but keep in mind, we still have to build your design, which takes considerably more time.  When we customize product, here are the general services we provide:

  • We design the circuit board.
  • We communicate with our customers throughout the customization and manufacturing process.
  • We manufacture surface mount stencils and circuit boards.
  • We program our pick and place machines to build your boards.
  • We build a working sample and run it through our wave solder machine.
  • We test your custom IoT solution.
  • Once the design is finalized it won’t be possible to make changes during production (changes cost money and require us to repeat the above processes)
  • Once it meets all your requirements, we will start production as needed.
  • We work with our metal fabricators to design a metal enclosure if required.
  • You work with our artist to print the top side of the enclosure in full color with your company logo if required.

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To learn something new, take the path that you took yesterday. ~John Burroughs

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