Internet of Things Communication in My Hands (Arduino, MQTT, Nodejs, MongoDB, Android, VS Code)

Hello, I am Inflearn knowledge sharer Park Mae-il.

We are conducting an additional recruitment for a small number of participants before the opening of the "AI Agent Bootcamp: Completion in 5 Weeks."

This is a coaching-style bootcamp where you will master the latest AI agent technology stacks, including Spring AI, MCP, Multi-Agent, and RAG, through hands-on projects in just 5 weeks.

I recommend this to those who want to quickly build Spring AI capabilities, experience AI trends firsthand, and create their own portfolio.

📌 Additional recruitment: A few spots available (First-come, first-served)

📅 Application Period: ~ 2026.02.23(Mon)

📅 Training Period: 2026.02.23 ~ 03.30

🕐 Mon/Tue/Thu LIVE | Wed/Fri LAB & 1:1 Coaching

—3 months of free access to Inflearn Park Mae-il VOD provided upon completion

—Free copy of Spring AI textbook (to be published in April)

👉 Course Information and Application: https://itscoding.kr

Hello, I am Inflearn knowledge sharer Park Mae-il.

We are conducting additional recruitment for the "AI Agent Bootcamp: Complete in 5 Weeks."

This is a coaching-style bootcamp where you can master the latest AI agent technology stacks—including Spring AI, MCP, Multi-Agent, and RAG—through hands-on projects in just 5 weeks.

I recommend this to those who want to quickly build Spring AI skills, experience AI trends firsthand, and create their own portfolio.

📌 Additional recruitment capacity: 5 people (First-come, first-served)

📅 Application Period: ~ 2026.02.20

📅 Training Period: 2026.02.23 ~ 03.30

🕐 Mon/Tue/Thu LIVE | Wed/Fri LAB & 1:1 Coaching

👉 Course Information and Application: https://itscoding.kr

"Hello. I am Park Mae-il, an Inflearn knowledge sharer."

We are holding a live bootcamp related to Spring AI.

Quickly build your Spring AI skills and credentials, and stay ahead of AI trends.

If you would like to experience this and work on related projects, please refer to the webpage and

please consider participating.

https://itscoding.kr/

Hello. I'm instructor Park Mae-il.^^
📢 Announcement for the opening of Spring AI x Kakao PlayMCP practical course.

The only domestic practical guide to Kakao PlayMCP for Spring AI developers has begun.

✅ Perfect for those who:

• Those who want to develop AI agents with Spring Boot knowledge

• Those curious about MCP (Model Context Protocol), the latest AI standard

• People who want to register their service on Kakao PlayMCP

🛠 What will we build?

• AI counseling service 'Jamsi' based on Psalms and Proverbs

• Server with real-time data integration using @McpTool

• External deployment using ngrok and Kakao platform registration

Try developing MCP and registering on Kakao PlayMCP too!!
There's also a Kakao PlayMCP contest ongoing.
Last lecture link of the year (30% discount): https://inf.run/ELmY4
"Wishing you a year full of good things in 2026."

Title: 🤖 Still reviewing & grading assignments manually? I leave it to Spring AI! (🎁Year-end half price)

Hello developers! Aren't you tired of repetitive code reviews and assignment grading?

So I've prepared this for you! An automated system where you push code to GitHub (PR) → AI analyzes it → grades and provides feedback - I've launched (2025-12-24) the [Spring AI in Action] Build Your Own 24/7 Code Reviewer & Auto-Grading Agent course that builds this from scratch.

✅Here's what you'll build!

• Webhook: My server detects GitHub events in real-time

• Spring AI: Give AI a "strict senior developer" persona

• Async Workflow: Review and grading simultaneously! (parallel processing optimization)

• Vaadin: Even a pretty dashboard for checking scores (no frontend knowledge needed)

🎄Year-End Gift: 50% Off!🎁 Enroll now and own it for life at half price.
Grow into a 'backend developer who can handle AI' next year!

👉Check out the course:https://inf.run/q8ofE
👉Implementation video demo: https://youtu.be/E9b24Y3GNDg

🎬 [Scenario] 24-Hour Coding Classroom with AI Teaching Assistant

1. 📢 Assignment Posting (Professor)

The professor writes skeleton code for a Java assignment (Calculator.java) that students need to complete and uploads it to the GitHub repository (main branch).

"Alright, this week's assignment is to complete a calculator that finds the sum of two numbers. Variable names must be clear, and there should be no unnecessary code to get a perfect score!"

2. 👨‍💻 Working on the Assignment (Student)

The student brings the professor's repository to their own space (Sync Fork), creates a new branch (homework-1), and solves the problem.

"Hmm, a + bI just need to return that, right? All done! Time to submit it to the professor for review." The student creates a Pull Request (PR) to submit the assignment.

3. 🤖 AI Agent Activation (System)

The moment the student clicks the "Create PR" button, the dormant Spring Boot server detects GitHub's signal (Webhook) and wakes up.

• Step 1 (Analysis): The server extracts only the code changes (Diff) made by the student and passes them to the AI agent.

• Step 2 (Grading):"Hmm, the functionality is correct, but the temp variable is unnecessary. The score is 90 points!" The AI grades rigorously according to its pre-trained persona.

• Step 3 (Save): The grading result (90 points) and feedback content are securely saved in the database (DB).

• Step 4 (Feedback): At the same time, the AI leaves a comment on the student's PR. "The functionality is perfect! However, unnecessary variable declarations can waste memory."

4. 📊 View Results (Student)

The student receives a notification in just 5 seconds after submitting the PR.

"The grading is already done?"

The student accesses a dedicated dashboard (web page) and enters their GitHub ID. The screen displays the score (90 points) of the assignment they just submitted and the AI's feedback, neatly organized in tables and badges.

Hello. I'm instructor Park Mae-il.
[Season 2] Spring AI in Action: Multi AI Agent System Development course has been opened.
This is a course for Spring backend developers to develop AI Agent systems using Spring AI.
In this course, I've added order functionality, RAG, and Slack MCP integration features to [Season 1], and proceeded with development by applying the
AI Router Pattern as shown below.

I used MariaDB Vector DB to leverage the RAG recommendation feature and applied the Slack MCP Server for real-time notifications. Since various system connections are crucial for the service to operate, I hope you'll take this opportunity to create diverse Multi AI Agent services with Spring AI.
I hope you'll join us in efforts to expand Spring AI and build a foundation comparable to the Python ecosystem.

Thank you.

Course Link (30% discount link)
https://inf.run/mZhWH

Hello, I'm instructor Park Mae-il.

Spring AI in Action: Developing a Premium Reservation AI Agent Please note that the frontend implementation section is provided as additional videos in the latter part of the course.😊

Hello. This is instructor Park Maeil.
The following course has newly opened.
It's currently 30% off, so I hope those who are interested will apply and find it helpful.

[Course Launch Notification] Spring AI in Practice: Premium Reservation AI Agent Development
'Autonomous Action' Premium Reservation Agent Backend Development using Spring AI + JPA + MySQL
Beyond Chatbots to Agents: The Essentials of Tool Calling and Prompt Engineering

"ChatGPT is just the beginning! Want to transform into a real AI developer?"

💡 Course Features

• Practical AI Agent Development Using Spring AI

• Building a Robust Backend System Using JPA and MySQL

• Implementing actual business logic such as reservations, cancellations, and inquiries

• Conversation Context Memory and Prompt Engineering Know-how Transfer

This is recommended for these people!

• Those who want to integrate AI technology into backend services

• Those who want to gain practical, project-focused experience

• Those who want to master the core features of Spring AI

👉 Apply now and leap forward as a next-generation AI developer!
https://inf.run/nvaLX