Technical (टेक्निकल)

IC L293D, is the Motor Driver IC, which is usually linked to Robotics Applications. Even if you tend to use this guy, few basic questions still arouse in the minds of budding Hobbyists; Like Why 2 supply pins on the IC, How much voltage can be given to the IC, Should I short all the Ground pins of the IC ??????  Here, I'll be explaining the Pin description of L293D and not the specifications or other technical details. You can refer datasheet for that. L293D datasheet click here. To start with, any Microcontroller development Board works with a Max. of 5V, with a few hundreds of mA current. In case of ARDUINO Duemilanov: DC Current per I/O: 40mA DC Current for VCC & GND: 200mA  Is this current sufficient enough to drive a everyday 12V, 200RPM DC motor ? No.  So what ? Use a Motor Driver.  Does it help ? Yes. It converts low current to high, sufficient to drive a motor. Pin Conections (Important: Even pro's tend to m...

Difficulty Rating : 3/10 Ever wanted to make a Line follower Robot, 'without' using  Microcontroller ??? Then you have visited a right place. Inspiration: I stumbled upon this Robot in my First year of Engineering during one of the Intercollegiate Robotics Championship (Regional) and ever since, it was my dream to make this Robot on my own. I googled for it & got many designs, but all Microcontroller based. I even shortlisted a few but my senior Pratik Kamat asked me take small steps first and suggested me to make one without the use of Microcontroller and with self designed logic. Now, as a part of Electronics workshop in Sem-IV (II Year), we were supposed to make a project based on 'Electronics'. Since I was introduced to Microcontrollers at that stage, I made a proposal to make a Microcontroller based LFR( Line follower Robot). But it was rejected by my Batch in-charge as no microcontroller based projects were allowed for current semester. So i decided...