Ranit's Robotics Blog

    A remote controlled cute little miniature version of a robotic arm which can sit on your table and pick up your eraser when you drop it. I've always been fascinated by Industrial Robotic arms. They are so simple yet complicated ! And I wanted to try and make one from the ground up without any help. Kind of wanted to simplify it and work with what I got. Planning At the moment, I had only two servos and 1 stepper motor. So, I needed to build the whole thing with nothing but those. So, I fired up Max and started working on the blueprint.     It's like a prototype that I like to create virtually - Which give me the Idea on How the real thing should be built ! And also, I can change stuffs easily here if things dont work out and improve the overall model if I need to. So, I found a way to create a cute little robotic mechanical arm with only the things I got. This would be able to pick up things with the help of that mouth and move ut around. Pretty simple...

Me and Sayanti Chatterjee had been working on this for over a month now.  This was really an ambitious project and we tried to pull off something big ! The app takes in a string of words - encodes it into Morse code and broadcasts it in form of light pulses using the phones flash light in accordance with both of the frequency parameters. Changing those parameters changes the speed of the broadcast. On the other end there's a Arduino with a photo-resistor which keeps sleeping and wakes up only when senses the first light pulse. ( So, basically it's a auto on/off feature ) which receives and reads those light flashes, processes it and decodes it into it's original form. ( Again, in accordance with those parameters ) Displays it and goes back to sleep ! This is how wireless data transfer works ! It's just a simplified form of a WiFi or a cell tower. We've recreated a model wireless communication system from scratch !  What is the most important skill that you can have...