Movement and IR radiation detection

Smart protection with EzloPi

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Movement and IR radiation detection

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

This project leverages the ADXL345 3-axis accelerometer and PIR motion sensor to detect physical movement and IR radiations, respectively interfaced with the EzloPi device. The ADXL345 captures precise motion data in three dimensions, enabling the monitoring of dynamic or static movements. Complementing this, the PIR motion sensor identifies IR radiation changes, signaling the presence of moving objects or movement within its range. Together, these sensors create a versatile system for applications such as security, activity tracking, and automation. The EzloPi device serves as the main hub for processing sensor inputs for real-time actions or notifications.

3. Circuit Diagram & Interface

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

ESP32 as an EzloPi smart device.
ADXL345 3-axis accelerometer.
PIR Motion sensor.

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 ADXL345:

ESP32	ADXL345
3V3	VCC
GND	GND
D21	SDA
D22	SCL

From ESP32 to the PIR Sensor:

ESP32	PIR Sensor
VIN	VDD
GND	GND
D13	SIG

4. Interfacing the ADXL345 3-Axis Accelerometer with PIR Sensor 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 I2C.

An I2C window will be opened for inputting the following parameters:

Set the Device name of your choosing. In our case, we set it to ADXL345.
Set the Device Subtype to ADXL345 3-Axis Accelerometer.
Set the Slave Address to 89.
Set the SDA pin to 21.
Set the SCL pin to 22.
Tick mark the Button Enable Box.
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 the Device name of your choosing. In our case, we set it to PIR Sensor.
Set the INPUT GPIO to 13.
Set the Device Subtype to PIR Sensor.
Set the Resistor to PULL DOWN
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.

On the MiOS web dashboard, the tiles are displayed for the ADXL345 and the PIR sensor. We are using these sensors to monitor movements. When ADXL345 gives a certain value and when the PIR motion sensor receives some input then it will give a notification about it.

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 Notification MeshBot click on Create.

On the next screen you will see that we can create a name of our choosing, in this case we write it as Test014.

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 ADXL345_acc_x.
Set the Capability to parent_abstract.
Set the Variables to uuid.
Set the Comparator to Greater (>).
Set the Value Type to value.
Set the Value to 2.5.

Set these values in the ACTION section.

Set Controllable Type to Notification.
Set the User to Your user account .
Set the Channels to email,push.
Set the Subject to Detect Movement.
Write the suitable Message body that you want to receive in your email. As you can see, we write, Both physical and infrared movement are detected.
After clicking the apply button you can see a table of your setting in the Current configuration tab.

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.

Now as shown above, when the ADXL345 accelerometer gets a certain value and the PIR sensor detects motion or an object then we get a notification notifying us about the detected movements.

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:

After opening the dashboard, you will be able to see the tile of your connected device.

Now as shown above, when the ADXL345 accelerometer gets a certain value and the PIR sensor detects motion or an object then we get a notification notifying us about the detected movements.