Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now imagi… ...

When the left sensor is on white and right sensor is on black, LFR will take a right-turn. Similarly, when the right sensor is on white and left sensor is on black, LFR will take a left-turn. These ...

Whether it’s a simple Solarbotics photovore BEAM robot kit, the PID op-amp circuit used in this line following robot, the wide variety of analog op-amp and traditional BEAM circuitry used in ...

Now that the mechanical assembly part is over,and we have completed the construction of left and right (L&R) infrared sensor cards. Since the MCU (ATmega8) cannot drive the dc motors directly, a ...