Vibration-sensitive alarm system

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Vibration-sensitive alarm system

The EzloPi smart devices provide automation through simple, customizable use with our open-source EzloPi platform, making daily life easier and improving human-machine interactions.

Before moving into this example, it is very important to know about the device registration, provisioning and converting the ESP32 device into an EzloPi device along with knowledge of Web Flasher, MiOS Mobile Application for Android/iOS and the MiOS Web Application.

1. About this example

The vibration-sensitive alarm system project integrates the reed switch module, vibration sensor module, and buzzer with the EzloPi device to detect and alert users of unusual vibrations or movements. The LM393 module detects vibrations, triggering the buzzer to sound an alarm, while the KY-025 Reed switch serves as an additional safety feature, detecting if doors or windows are opened unexpectedly. This dual-sensor system enhances security by providing immediate auditory alerts for unauthorized access or unusual movements, making it suitable for securing valuable assets, doors, and sensitive installations.

3. Circuit Diagram & Interface

The following components are required for interfacing with the EzloPi device:

ESP32 as an EzloPi smart device.
KY-025 Reed switch module.
LM393 vibration sensor module.
MH-FMD buzzer.

The wiring diagram of ESP32 30 pin is represented as follows:

The following connections are made in order to complete the circuit setup.

From ESP32 to the KY-025 Reed Switch Module:

ESP32	KY-025
VIN	+(VCC)
GND	G(GND)
D13	D0

From ESP32 to the LM393 Vibration Sensor Module:

ESP32	Vibration Sensor
VIN	+5V
GND	GND
D12	D0

From ESP32 to the Buzzer:

ESP32	Buzzer
VCC	3V3
GND	GND
I/O	D15

4. Interfacing the Reed Switch & Vibration Sensor with Buzzer with the EzloPi Web Flasher:

1. Set up your device/hardware by visiting config.ezlopi.com

Now, click on the Connect Device button and a pop-up window will appear.

Now, select COM Port to which your ESP32 device is connected. In our case, the COM3 port is used.

Click Connect

If you are new to this and it's your first time configuring, select Create new Device ID. Enter Wifi SSID and Wifi Password.
In the Device Configuration, tab click on Digital Input.

A Digital Input window will be opened for inputting the following parameters:

Set a Device Name of your choosing. In our case, we set it to Reed Switch.
Set the INPUT GPIO to 13.
Set Device Subtype to Reed Switch.
Set the Resistor to PULL DOWN.
Then Click Apply Button.

In the Device Configuration, tab click on Digital Input.

A Digital Input window will be opened for inputting the following parameters:

Set a Device Name of your choosing. In our case, we set it to Vibration Sensor.
Set the INPUT GPIO to 12.
Set Device Subtype to Vibration Sensor.
Set the Resistor to PULL DOWN.
Then Click Apply Button.

In the Device Configuration, tab click on Digital Output.

A Digital Output window will open for inputting the following parameters:

Set a Device name of your choosing. In our case, we set it to the Buzzer Alarm.
Set Device Subtype to LED.
Set the OUT GPIO to 15.
Set the Resistor to PULL UP.
Then Click Apply Button.
After clicking the apply button you can see a table of your setting in the device configuration tab.
Press the Flash Device button.

A window will appear on the bottom right side of the screen displaying “Please press BOOT button while flashing begins.”

Hold the BOOT button down until the next window appears on the bottom right side of the screen which says “Installation prepared. Please release the boot button now.”

Release the BOOT button from your ESP32 when this pop-up on the bottom right window appears.

After some time, a popup will appear saying Device Flashed Successfully! This means that your device has been set up successfully.

5. MiOS Web Dashboard

After configuring the controller with the EzloPi web flasher, head to ezlogic.mios.com

Use the same credential to log in that you used for configuring the controller with the web flasher.

Now in the MiOS web dashboard, you will be able to see the tiles of connected devices. In our case we have a reed switch, vibration sensor and buzzer alarm tiles. The buzzer alarm will indicate the status of reed switch and vibration sensors depending on the meshbot conditions.

MeshBots:

On the left side of the screen under Automation, click on MeshBots.
On meshbot screen, click on Create new MeshBot button present on the top right corner of the screen.
After clicking on Create new MeshBot, you will see this now under Automation MeshBot click on Cloud.

On the next screen you will see that we can create a name of our choosing, in this case we write it as Test010.

In the trigger tab you can set the TRIGGER for your device and in the ACTION tab you can set the action to be performed based on the trigger which you have created.

Set these things in TRIGGER section:

Set Node Type to Device.
Set the Node to Vibration Sensor.
Set the Capability to motion_sensor.
Set the variables to status.
Set the Comparator to Equal (==).
Set the Value Type to value.
Set the value to true.

Set these values in the TRUE part of the ACTION section.

Set Controllable Type to Device.
Set the Controllable to Buzzer Alarm.
Set the Capability to power_command.
Set the Value Type to true.
Now Click the Save button.

After clicking the save button you can see this screen on the top right corner of the screen.

Here you can see your saved MeshBot. Now click on Dashboard.

Here, as seen above, we can see that when the vibration sensor senses some motion or movement, the buzzer Alarm turns ON because of the conditions we have set in the meshbot.

6. MiOS App

You can download the MIOS Android app from the Google Play Store and Apple App Store.

After downloading the app, proceed to install the application and open it.

Using the MIOS mobile application, create a new Ezlo Cloud account using the sign-up option. If you already have an account, you may proceed to log in.

After successfully logging in, you will be able to see the number of controllers connected such as a lamp, fan, or any other device in the MiOS app. Tap on any controller of your desired ID:

You will be able to see the status of your controller whether it is online or offline. Access the device dashboard, and tap the device. The following view of the dashboard will appear:

In the MiOS mobile dashboard, you will be able to see the tiles of connected devices. In our case we have a reed switch, vibration sensor and buzzer alarm tiles. The buzzer alarm will indicate the status of reed switch and vibration sensors depending on the meshbot conditions.

Here, as seen above, we can see that when the vibration sensor senses some motion or movement, the buzzer Alarm turns ON because of the conditions we have set in the meshbot.