I am very keen about science and technology. So, I wanted to apply engineering in reality that how can technology help us. At that time, I was in the last year of my curriculum, I visited Ahmedabad Blind People Association. And I had seen lot's of handicap people together. Immediately, I planned a design in my mind that it is feasible to build a device for them. With the help of that device they will become independent and no need to become dependent on others for daily work.
1 / 12 • PCB Milling Machine Front View ( At FabLab, Ahmedabad)
2. Sources from we got help
The 8051 Microcontroller and Embedded Systems: Using Assembly and CBook by Janice Gillispie Mazidi, Muhammad Ali Mazidi, and Rolin D. McKinlay
The AVR Microcontroller and Embedded Systems: Using Assembly and CBook by Muhammad Ali Mazidi, Sarmad Naimi, and Sepher Naimi
There are two parts of this work.
>>> Home Automation Based On Voice
>>>IoT enabled by Raspberry Pi
Home Automation Based On Voice
In this part, We are using I2C protocol.
For using this protocol we need masters and slaves. So, here, we used Arduino UNO and Raspberry Pi as master. And we made three slaves based on ATmega328 IC. The slave's schematics is available in below section. Where readily available PCB board is also in that section. That was made by me.
we are also using 8 channel relay module.
where we are using 3 relays for Hall, 3 relays for bed room and 2 relays for kitchen.
Three relays of hall with 1st slave on digital pin number 2, 3 and 4. And other 3 relays of bedroom is connected with 2nd slave and other 2 relays of kitchen is connected with 3rd slave. So, we will get structure like below.
Now, Our Arduino UNO is connected with PC. Form where you have to upload the master code Which is given in code section. Then for slave 1, slave 2 and slave 3, you have to upload slave program. Here, each component is connected with I2C protocol. Means Slaves and Masters are connected with SDA and SCL line.