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Arduino + MIT App Inventor: Android-Controlled Hardware
New
1 students

Arduino + MIT App Inventor: Android-Controlled Hardware

Master Bluetooth HC-05 serial communication, voice AI actuation, and real-time sensor telemetry with Arduino Uno.
Created bySouroabh Dubey
Last updated 9/2026
English

What you'll learn

  • Build Android applications using MIT App Inventor to wirelessly control Arduino hardware in real time.
  • Interface the HC-05 Bluetooth module with Arduino Uno using hardware UART serial communication.
  • Implement voice-controlled embedded systems using Android's SpeechRecognizer engine.
  • Stream live sensor telemetry to mobile dashboards with Clock polling and automated audio alarms.

Course content

5 sections • 8 lectures • 39m total length

  • Course Introduction & Welcome by The Coding Bus0:32

    Meet your instructor from The Coding Bus, discover the scope of the course, and preview the projects you will build.

  • Essential Hardware & Software Requirements0:53

    Comprehensive inventory of all hardware components, jumper wires, pinouts, and instructions for setting up the Arduino IDE and MIT App Inventor accounts.

  • The Arduino + Android Communication Architecture0:39

    Deep dive into UART serial communication, baud rate matching (9600), the Bluetooth Serial Port Profile (SPP), and TX/RX crossover rules.

Requirements

  • An Arduino Uno board, HC-05 Bluetooth module, breadboard, LEDs, and an Android smartphone.
  • Basic computer literacy (Windows, Mac, or Linux). No prior coding experience required.

Description

Transform your smartphone into a powerful wireless controller and monitoring dashboard for real-world Arduino projects!

 

Most embedded systems and robotics courses focus exclusively on writing C++ code inside the Arduino IDE, leaving the user interface as an afterthought. Conversely, many mobile app development courses never touch physical hardware. This course bridges that gap by combining Arduino microcontroller hardware with MIT App Inventor Android app development.

 

You will learn how to design custom Android apps without complex syntax, establish rock-solid Bluetooth Serial Port Profile (SPP) connections, and communicate bidirectionally with real physical sensors and actuators on your desk.

 

What You Will Build in This Course

  • Project 1: Wireless Bluetooth LED Controller — Learn circuit wiring on a breadboard, UART serial reading in Arduino C++, UI design in MIT App Inventor, and one-way command transmission ('1' and '0') to control physical pins wirelessly.

  • Project 2: Voice-Controlled Arduino Assistant — Integrate speech-to-text artificial intelligence using Android's SpeechRecognizer component to command your Arduino hardware hands-free using natural voice phrases ("Turn On", "Turn Off").

  • Project 3: Smart Fire Alarm & Sensor Telemetry System — Master reverse data flow: stream real-time digital flame sensor readings from Arduino over Bluetooth to your phone, implement automated Clock timer polling in App Inventor, and trigger mobile alarms and visual warnings.

 

Why Learn With This Course?

  • Project-Based & Practical: No endless theory. You start with hardware assembly, proceed to firmware programming, build the mobile UI, and finish with a working physical result.

  • Broadcast-Quality Audio & Video: Master 1080p high-definition lessons with professional on-screen callouts, code highlighting, and crystal-clear narration.

  • Complete Downloadable Resources: Every Arduino sketch (.ino), wiring diagram, and App Inventor setup guide is provided in the downloadable resources.

  • Hardware Gotchas Solved: Avoid beginner pitfalls! Learn why TX/RX pins must be disconnected during sketch upload, how to protect the 3.3V logic level of the HC-05, and how to configure Android 12+ Bluetooth permissions.

 

Who Is This Course For?

  • Makers, hobbyists, and electronics enthusiasts looking to add professional mobile control to their Arduino projects.

  • Students and educators seeking practical STEM / IoT curriculum examples.

  • Beginner developers who want to build physical computing apps without writing complex Java or Kotlin code.

Who this course is for:

  • Makers, hobbyists, and students who want to build practical Android-controlled Arduino electronics.
  • Beginners who want to create mobile apps without complex Java/Kotlin code using MIT App Inventor.

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