Jim Carver
Garage Door Monitor and Opener
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Introduction
This system implements a simple garage door opener and environmental monitor. The hardware connects to the internet using Wi-Fi then on to the Pelion Device Management Platform which provides device monitoring and secure firmware updates over the air (FOTA). Pelion Device Management provides a flexible set of REST APIs which we will use to communicate to a web application running on an EC-2 instance in AWS. The web application will serve a web page where we can monitor and control our garage..
This project is intended to work on the DISCO-L475VG-IOT01A from ST Microelectronics It implements a simple actuator to drive a relay to simulate pushing the "open" button on older style garage doors which do not use a rolling code interface.
The system is designed to be mounted over the door so that the on board time of flight sensor can be used to detect if the door is open or closed.
The system also monitors temperature, humidity and barometric pressure.
Hardware Requirements:
DISCO-L475G-IOT01A https://os.mbed.com/platforms/ST-Discovery-L475E-IOT01A/
Seeed Studio Grove Relay module https://www.seeedstudio.com/Grove-Relay.html
Seeed Studio Grove cable, I used this one: https://www.seeedstudio.com/Grove-4-pin-Male-Jumper-to-Grove-4-pin-Conversion-Cable-5-PCs-per-Pack.html
Connect to the PMOD connector like this:
This shows how I installed so that the time of flight sensor can detect when the door is open
To use the project:
You will also need a Pelion developers account.
I suggest you first use the Pelion quick state to become familiar with Pelion Device Management. https://os.mbed.com/guides/connect-device-to-pelion/1/?board=ST-Discovery-L475E-IOT01A
Web Interface
For my web interface I am running node-red under Ubuntu in an EC2 instance on AWS. This can run for 12 month within the constraints of their free tier. Here is a tutorial: https://nodered.org/docs/getting-started/aws
You will also need to install several node-red add ons:
sudo npm install -g node-red-dashboard
sudo npm install -g node-red-contrib-mbed-cloud
sudo npm istall -g node-red-contrib-moment
After starting node-red import the contents of GarageFlow.txt from the project, pin the flow into the page.
To enable your web app to access your Pelion account you need an API key.
First you will neet to use your Pelion account to create an API key.
Now we need to apply that API key to your Node-Red flow.
Diff: bootloader/LICENSE
- Revision:
- 9:265744785d33
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/bootloader/LICENSE Sun Oct 14 19:01:53 2018 +0100 @@ -0,0 +1,49 @@ +Permissive Binary License + +Version 1.0, September 2015 + +Redistribution. Redistribution and use in binary form, without +modification, are permitted provided that the following conditions are +met: + +1) Redistributions must reproduce the above copyright notice and the + following disclaimer in the documentation and/or other materials + provided with the distribution. + +2) Unless to the extent explicitly permitted by law, no reverse + engineering, decompilation, or disassembly of this software is + permitted. + +3) Redistribution as part of a software development kit must include the + accompanying file named "DEPENDENCIES" and any dependencies listed in + that file. + +4) Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +Limited patent license. The copyright holders (and contributors) grant a +worldwide, non-exclusive, no-charge, royalty-free patent license to +make, have made, use, offer to sell, sell, import, and otherwise +transfer this software, where such license applies only to those patent +claims licensable by the copyright holders (and contributors) that are +necessarily infringed by this software. This patent license shall not +apply to any combinations that include this software. No hardware is +licensed hereunder. + +If you institute patent litigation against any entity (including a +cross-claim or counterclaim in a lawsuit) alleging that the software +itself infringes your patent(s), then your rights granted under this +license shall terminate as of the date such litigation is filed. + +DISCLAIMER. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND +CONTRIBUTORS "AS IS." ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT +NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. \ No newline at end of file