Intelligent lighting solution for seating areas

Smart lighting solutions and innovations with EzloPi

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Intelligent lighting solution for seating areas

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 intelligent lighting solution for seating areas utilizes the TSL2561 luminosity sensor and a force sensitive resistor (FSR) to create a smart and energy-efficient lighting system. The TSL2561 sensor measures ambient light levels to adjust the brightness of the LED strip dynamically, ensuring optimal illumination. The FSR detects the presence or absence of a person in the seating area, triggering the lighting system accordingly. The entire setup is seamlessly interfaced with the EzloPi device, enabling precise control and automation. This solution enhances user comfort while minimizing energy consumption, making it ideal for modern seating arrangements.

3. Circuit Diagram & Interface

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

ESP32 as an EzloPi smart device.
TSL2561 luminosity sensor.
Force sensitive resistor with pull-down resistor.
LED strip.
XY-MOS, high-power dual MOSFET driver module.

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 TSL2561:

ESP32	TSL2561
3V3	Vin
GND	GND
D21	SDA
D22	SCL

From ESP32 to the Force Sensitive Resistor with Pull-down resistor:

ESP32	Force Sensitive Resistor	Pull Down Resistor
3V3	Terminal 1	-
D33	Terminal 2	Terminal 1
GND	-	Terminal 2

From ESP32 to the MOSFET driver module:

ESP32	MOSFET driver module
D23	Trig
GND	GND

From MOSFET driver module to LED Strip:

MOSFET Driver	LED Strip
OUT+	5V
OUT-	GND

4. Interfacing the Luminosity Sensor, FSR & Booklight LED using 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 a Device name of your choosing. In our case, we set it to Luminosity Sensor.
Set Device subtype to TSL2561 Luminosity Sensor.
Set the Slave address to 57.
Set the SDA to 21.
Set the SCL to 22.
Tick mark both the boxes of Enable pullup.
Then Click Apply Button.

Again, In the Device Configuration, tab click on Analog Input

An Analog Input window will be opened for inputting the following parameters:

Set a Device name of your choosing. In our case, we set it to Force Sensitive Resistor.
Set Device Subtype to Force Sensitive Resistor.
Set the ADC input pin to 33.
Set the Resolution to 10-bit.
Then Click Apply Button.

Again, In the Device Configuration, tab click on Analog Input.

An Analog Input window will be opened for inputting the following parameters:

Set a Device name of your choosing. In our case, we set it to Force Sensitive Resistor.
Set Device Subtype to Force Sensitive Resistor.
Set the ADC input pin to 33.
Set the Resolution to 10-bit.
Then Click Apply Button.

Again, In the Device Configuration, tab click on Digital Output.

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

Set a Device name of your choosing. In our case, we set it to the Booklight LED.
Set Device Subtype to LED.
Set the OUT GPIO to 23.
Set the Resistor to PULL UP.
Now Click the Apply button.
After clicking the apply button you can see a table of your setting in the device configuration tab.

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.

Here, on the MiOS web dashboard, you will be able to see the tiles of the connected devices. In our case, we have TSL2561 luminosity sensor, Force Sensitive Resistor and Booklight LED tiles. The Booklight LED tile will indicate the status of the TSL2561 and Force sensitive sensor and whether or not the both sensor’s values are within the set threshold.

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 Local.

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 TSL2561..
Set the Capability to parent_abstract.
Set the variables to uuid.
Set the Comparator to Less (<).
Set the Value Type to value.
Set the value to 10.
Add another trigger by pressing the Add Trigger button
Set Node Type to Device.
Set the Node to Force Sensitive Resistor.
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 90.

Set these values in True part of the ACTION section.

Set Controllable Type to Device.
Set the Controllable to Booklight LED.
Set the Capability to power_command.
Set the Value Type to set.
Set the Value 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.

Now in the MiOS web dashboard, we can see that when the Force sensitive resistor value is low, indicates that nobody is sitting on the seat whereas TSL2561 value is high indicating that there is enough light in the area that’s why our LED is OFF according to the condition set in the meshbot.

Here in the above picture, it shows that when the Force sensitive resistor gets high indicating someone is sitting on the chair and also the TSL2561 Luminosity sensor gives a low value indicating there is low light in the area, then the LED turns ON because of our meshbot settings.

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:

On the MiOS mobile dashboard, we can see that when the Force sensitive resistor value is low, indicates that nobody is sitting on the seat whereas TSL2561 value is high indicating that there is enough light in the area that’s why our LED is OFF according to the condition set in the meshbot.

Here in the above picture, it shows that when the Force sensitive resistor gets high indicating someone is sitting on the chair and also the TSL2561 Luminosity sensor gives a low value indicating there is low light in the area, then the LED turns ON because of our meshbot settings.