AC Lamp Setup with Relay

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.

This project aims to create a simple and effective system for remotely controlling an AC lamp using a relay through the EzIoPi device. The EzloPi is a versatile and user-friendly IoT platform that allows users to interface with various sensors and actuators, making it an ideal platform for home automation and IoT projects.

In this project, we will leverage the capabilities of the EzIoPi device to control the state of an AC lamp, turning it on and off remotely through the MiOS Application.

The following components are required for interfacing the lamp using the EzloPi device:

• ESP32 as an EzloPi smart device.
• A 5V single-channel relay module for controlling the circuit.
• A momentary switch with pull-up resistor of value 10KOhms.
• AC lamp and holder with wires to connect to AC mains.

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

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

From ESP32 to Relay:

• Connect Vin to the Vcc of the relay module.
• Connect the GND of the ESP32 to the GND of the relay module.
• Connect D5 to the signal pin on the relay module.

ESP32 to Push Button:

• Connect the D15 pin through a pull-up resistor of value 10k to the push button leg A.
• Connect GND to the push button leg B.

From Relay to AC load:

• Connect the Normally Open (NO) pin to the AC phase wire.
• Connect the Common (COM) pin to Neutral Wire.

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 digital output window will open for inputting the following parameters:

• Set a device name of your choosing. In our case we set it to Relay.
• Set Out GPIO to 2.
• Set Resistor to PULL UP.
• Set the default value to low.
• Check the Button Enable option.
• Set INP GPIO to 5.
• 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.

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

9. 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.”

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

11. 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 dashboard, you will be able to see the tile of your connected device. In the above figure, the status of the device is indicated whether it is ON or OFF. Also, clicking on the device tile will toggle the state of the device.
6. The bulb is turned ON by clicking on the relay button and its status has changed as shown in the above picture.

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. In the above figure, the status of the device is indicated whether it is ON or OFF. Also, clicking on the device tile will toggle the state of the device.
4. The bulb is turned ON by clicking on the relay button and its status has changed as shown in the above picture.

5. As seen above on the dashboard, the bulb is turned OFF.