Battery-operated digital temperature sensor

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 following projects aims to create a seamless and intelligent integration between the KY-001 digital temperature sensor module and the EzloPi device. This designed temperature monitoring system will be operated via a 5V battery system.

With the user-friendly MiOS mobile and web application, users can remotely access and monitor the temperature information and make informed decisions to optimize energy consumption and enhance comfort. This also allows for intelligent automation, allowing users to set custom triggers and actions based on temperature thresholds values, enhancing energy efficiency and comfortable living.

The following components are required for interfacing the digital temperature sensor module with the EzloPi device:

• ESP32 as an EzloPi smart device.
• KY-001 module with DS18B20 Digital temperature sensor.
• 5V Battery module

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 (30 pins) to the KY-001 module:

From ESP32 (30 pins) to the Battery:

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 One Wire.

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

• Set a device name of your choosing. In our case, we will set it to DS18B20.
• Set Out GPIO to 4.
• Set Device Subtype to DS18B20 Sensor.
• 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.

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 dashboard, you will be able to see the tile of your connected device. As we can see above, the temperature sensor module tile is showing the current temperature value.

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. After opening the dashboard, you will be able to see the tile of your connected device. As we can see above, the temperature sensor module tile is showing the current temperature value.