Control four AC Lamps at a time with EzloPi

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.

The goal of this project is to interface two AC lamps with the EzloPi device with the help of a two-channel relay module which will work as a switch. This will enable users to remotely control the two AC lamps using the MiOS application. This project combines hardware and software components to provide a user-friendly solution for efficiently managing lighting in a smart home environment and ultimately enhancing the user experience and increasing energy efficiency.

Welcome to the project demonstration video section. The following video showcases the key aspects of How to control several AC lamps with one tap using EzloPi Platform, providing a visual walkthrough of its implementation.

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

• ESP32 as an EzloPi smart device.
• 2-channel 5V relay module.
• AC lamp with holder and wires to connect to AC mains.

The wiring diagram is represented as follows:

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

From ESP32 to the Relay module:

• Connect the D4 pin from the ESP32 to the 1st channel of the relay module.
• Connect the D2 pin from the ESP32 to the 2nd channel of the relay module.
• Connect the GND from the ESP32 to the GND of the relay module.
• Connect ‘+’ terminal to 3V3.

From Relay module to 220V AC Lamps:

• Connect the common of the relay module to the neutral.
• Connect the normally open point to the NO1 terminal of the 1st bulb and NO2 of the 2nd bulb and the second point of the bulbs will be connected to phase voltages.

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

2. Log in using the credentials which you just set earlier while signing up.

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

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

Click Connect.

5. If you are new to this and it's your first time configuring, select Create new Device ID. Enter Wifi SSID and Wifi Password.

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

7. A window will open for inputting the following parameters:

• Set a device name of your choosing. In our case, we set it to Relay CH-2
• Set Device subtype to Relay.
• Set OUT GPIO to 2.
• Set Resistor to PULL UP.
• Set the default value to LOW.
• Now Click the Apply button.
• Again click on the Digital output button for interfacing the second relay.

9. A window will open for inputting the following parameters:

• Set a device name of your choosing. In our case, we set it to Relay CH-2
• Set Device subtype to Relay.
• Set OUT GPIO to 2.
• Set Resistor to PULL UP.
• Set the default value to LOW.
• Now Click the 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.

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

11. 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.”

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

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

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

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

2. 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.

3. 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:

4. 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:

5. After opening the MiOS mobile app dashboard, you will be able to see the tile of your connected device. The state of the 2-channel relay module is controlled by just touching the tile button as shown on the app.

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

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

3. After opening the MiOS web dashboard, you will be able to see the tile of your connected device. The state of the 2-channel relay module is controlled by just touching the tile button as shown on the web dashboard.