It's in the cart! 
Smart Temperature Logger With Esp32 And Oled Display
About the project
This project is a smart temperature logging system built using an ESP32 microcontroller and a 0.96" OLED display. It continuously monitors ambient temperature using a digital sensor and displays the real-time values on the OLED. Additionally, the system logs the data locally (e.g., to an SD card or internal memory)
Project info
Difficulty: Easy
Platforms: Arduino, Texas Instruments
Estimated time: 2 hours
License: GNU General Public License, version 3 or later (GPL3+)
Items used in this project
Hardware components
Story
🛠️ What is my project?
Project name: Smart Temperature Logger with ESP32 and OLED Display
This is a smart temperature logger based on ESP32. It collects the ambient temperature in real time through the DHT22 sensor and displays it dynamically on the OLED display. At the same time, the data is saved in the memory of ESP32 for subsequent reading. This project is suitable for application scenarios such as environmental monitoring, temperature and humidity tracking, and smart home.
💡 Why did I decide to do it?
I hope to develop a portable, efficient and low-cost temperature monitoring solution for environmental data collection in daily work environments and laboratories. This project not only exercises my embedded system development skills, but also gives me a deeper understanding of IoT applications.
In addition, I am currently working on electronic components at Bettlink.com. This project can also be used as a display platform to help others understand how to apply these components to actual projects.
⚙️ How does it work?
This project consists of the following modules:
ESP32 development board: core controller, responsible for reading sensor data and driving the display.
DHT22 temperature and humidity sensor: reads temperature and humidity every 2 seconds.
0.96-inch OLED display (I2C interface): displays temperature, humidity and timestamp in real time.
RTC module (optional): records accurate time for data logging.
MicroSD module (optional): expands data storage function.
The system flow is as follows:
ESP32 initializes each module.
Loops to read temperature and humidity from DHT22.
Displays data in a user-friendly format on OLED.
Also records data for later reading or uploading.
🖼️ Project Icon
📦 Project Completion Status
The project is complete and has been successfully tested and run in multiple environments. Although there is no video or code repository link at the moment, I plan to add a full tutorial and GitHub address in the next version.
If you want to know the components I used or want to build a similar project yourself, welcome to visit our website Bettlink, we focus on providing reliable electronic components and project support.
If you still need me to generate a circuit diagram or hand-drawn wiring schematic for you, I can continue to help you. Do you need me to add text annotations?
Credits
Related products
g