Controlling LED with SPDT mini toggle switch

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 interface an SPDT mini toggle switch with the EzloPi device to demonstrate how we can implement the switch operation by controlling its state. The SPDT switch, which has three terminals (common, normally open, and normally closed), will be connected to the GPIO pins of the EzloPi device. The project includes reading the switch’s current state and displaying the status of the switch on the MiOS application dashboard tile. As for this project, we have implemented the toggle switch with the LED to control its operating state (ON or OFF).

Welcome to the project demonstration video section. The following video showcases the key aspects of Controlling LED with SPDT mini toggle switch, providing a visual walkthrough of its implementation.

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

• ESP32 as an EzloPi smart device.
• SPDT toggle switch.
• LED with 100 Ohm Resistor.

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 SPDT Switch:

From ESP32 to LED & Resistor:

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 Input.

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

• Set a Device name of your choosing. In our case, we set it to the SPDT Switch.
• Set Device Subtype to Switch / Button / Key.
• Set Resistor to PULL DOWN.
• Then Click Apply Button.

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

9. 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 LED.
• Set INPUT GPIO to 4.
• Set Device Subtype toLED.
• Set 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.

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.

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

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

3. Now, on the MiOS web dashboard, you will see the tiles of your connected devices as shown above labeled as SPDT switch and LED. Currently, SPDT switch is not toggled or triggered therefore both SPDT Switch and LED tiles show the “OFF” message.

MeshBots:

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

7. On the next screen you will see that we can create a name of our choosing, in this case we write it as Test002.

8. 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.

9. Set these things in TRIGGER section:

• Set Node Type to Device.
• Set the Node to SPDT Switch.
• Set the Capability to Switch.
• Set the value to True.

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

• Set Node type to Device.
• Set Controllable to LED.
• Set Capability to switch.
• Set value to true.

11. Set these values in the FALSE part of the ACTION section.

• Set Node type to Device.
• Set Controllable to LED.
• Set Capability to switch.
• Set value to false.
• After clicking the apply button you can see a table of your setting in the Current configuration tab.

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

13. Now as seen above, it shows that when the SPDT Switch gets turned on or triggered then the LED also gets turned ON because of the rules we have set in the meshbot.

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. On the MiOS mobile dashboard, you will see the tiles of your connected devices as shown above labeled as SPDT switch and LED. Currently, SPDT switch is not toggled or triggered therefore both SPDT Switch and LED tiles show the “OFF” message.

6. Now as seen above, it shows that when the SPDT Switch gets turned on or triggered then the LED also gets turned ON because of the rules we have set in the meshbot.