Remote Controlled Cat Door and Alert System

Rogier Honselaar is a tech consultant in Germany. He wanted to be able to control a cat door remotely and also be notified when his cat came home.

"Gonzo" loves his automated cat door

"Gonzo" loves his automated cat door

As with most projects, Rogier started searching the Internet and found some interesting projects. He got the idea to combine some of his favorite projects and make a remotely controlled cat door and alert system for his cat, “Gonzo”.

Here are some projects that inspired him:

When the idea was there, the execution was very easy using the IObridge module and components.

Rogier installed a Cat Mate Cat Door in his basement. The cat door opens when the electromagnet senses a magnet in the cat’s collar. By running the sensor and switch over the the ioBridge IO-204, Rogier can be open and close the door remotely. He is also able to monitor  when the cat comes in and out of the door. The messages get pushed to via the IO-204 and ioBridge web service. Rogier and his neighbor follows his cat on Twitter @fellnasegonzo to make sure Gonzo is home safe and sound.

Cate Mate Automated Cat Door

Cat Mate Automated Cat Door

Cat Door Switch and Sensor

Cat Door Switch and Sensor

At, Rogier created a few control and monitor widgets. With some help from a friend, he controls and reads the widgets via a net-connected Windows Mobile app on his cellphone and can open and close the cat door on his Windows Home Server.
Windows Mobile Cat Door Control App

Windows Mobile Cat Door Control App

Windows Home Server Interface

Windows Home Server Interface

Thanks for sending us the project details – we are happy to share. You combined some very interesting things together and created a very useful project. We wish you and Gonzo well and hope you enjoy the new cat door! Who let the cat out? Meow.

MAKE Volume 22: Remote Control Everything!

Volume 22 of O’Reilly Media’s MAKE Magazine is loaded with remote control projects. Everything from The Kitty Twitty by Marc de Vinck to a radio controlled lawnmower called “Lawnbot400” .

MAKE Volume 22 Remote Control / Wireless

MAKE Volume 22 Remote Control / Wireless

Gareth Branwyn asked “innovators and enthusiast” from the industry what’s on their radars for his article. Since the issue was all about remote control, Gareth pinged our very own Jason Winters for his thoughts on how remote control has changed and where it’s going.

“Today, by using the internet to send control signals, range is no longer limited by transmission power. Any location with a net connection can be a potential command point.”

MAKE also included some favorite ioBridge applications and projects:

We were thrilled to have a mention in MAKE Magazine. It’s a favorite of ours and it always has some great projects. Check out and make sure to get a copy of the latest volume.

Visit us at Maker Faire NC

Maker Faire North Carlina is April 25, 2010

ioBridge is an exhibitor and sponsor at this year’s Maker Faire North Carolina. We will have on display web-enabled robots, toys, and interactive projects created by the ioBridge community. Some of those projects include, an iPhone controlled Donkey Kong and a remote controlled dog treat dispenser.

Maker Faire NC is free and open to the public. Stop by and visit us!

Maker Faire NC
Sunday, April 25, 2010 9AM – 9PM

Loehmann’s Plaza
1821 Hillandale Rd.
Durham, NC 27705

TankedCam Interactive Aquarium []

Pete from Pete’s Fishcam and TankedCam fame got a great writeup on His system uses the ioBridge IO-204 to control and monitor his fish tank from anywhere.

“Designed for the iPhone/iPod (and Mac/PC desktop), the TankedCam app allows you to turn your  Atlantis into an aquatic home automation paradise.”

Learn more at and

Remote Dog Feeder with iPhone

The inventor known only as “hacklife” created an iPhone-controlled dog feeder. He converted some household parts into a stable, servo-controlled food dispenser. At the heart of the system is the IO-204 from ioBridge that allows the iPhone to direct servo positions over the Internet with no programming involved. His YouTube video, ioBridge Forum post, and MAKE post explain the system in more detail. Well done, hacklife.