IoT Based Homemade Robot with Android and Voice Control Tech

Dual H-Bridge motor drivers L293D

Voice Recognition Module V3

Standard LCD - 16x2 White on Blue

Arduino Mega 2560

Ultrasonic Sensor - HC-SR04 (Generic)

Arduino Nano R3

SG90 Micro-servo motor

<blockquote ><span >The project titled  &#34;</span><strong ><a href="https://youtu.be/JvHgeqxU3-8">IoT Based Homemade Robot with Wireless and Voice control Mode</a></strong><span >&#34; was mainly research based project.</span></blockquote><p ><span >This research was conducted focusing on the necessity of robots in our daily life. This documentation shows the system where the robot can be controlled in different ways like voice, wireless, and fully automatic mode. More </span><a href="https://www.programmingboss.com/2018/01/homey-arduino-based-creative-homemade.html">details </a><span >can be found </span><a href="https://www.programmingboss.com/2018/01/homey-arduino-based-creative-homemade.html">here</a><span >. </span></p><h3 >Here is the video Documentation:</h3><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/JvHgeqxU3-8" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe><figcaption contenteditable="true"><div>Watch The video Documentation of the project</div></figcaption></figure></div><h3 >Use Case Diagram:</h3><figure><img src=https://projects.arduinocontent.cc/c5e30d9e-7b3e-4436-8a5b-3c058903758c.jpg /><figcaption> </figcaption></figure><h3 >Robotic Hand Design:</h3><figure><img src=https://projects.arduinocontent.cc/0f68a50e-04a0-44a7-8672-1dc90d457221.jpg /><figcaption>Robotic Hand Testing</figcaption></figure><p >The robot can move its figure individually. I used a servo to move the fingers individually.As it is 1st prototype I tried to make it less costly, So I only used one servo to move all fingers at a time!</p><h3 >Android Application Implementation &amp; Testing</h3><figure><img src=https://projects.arduinocontent.cc/4f28a2ce-27e9-4d13-9d79-060b2a8e8efa.png /><figcaption>User interface of Android App</figcaption></figure><p >Users can press the temperature button to get the sensor value. The value is shown in the app. The robot can move left, right, we can stop it by pressing the stop button, light on/off button to control light on/off and they are manual functionalities. The robot can also move in AUTO mode.</p>

Arduino Nano and voice recognition module circuit diagram

Schematic Layout 

The Sample Code For this project.