Seeker II – The Interactive Mini-Sumo Robot

For those that always involved themselves in the “Mini-sumo competition”, the Mini-sumo robot is very common to the developers. No matter you’re the amateur or the professional in the robotic development field, this Seeker II is going to amaze you here!

For your information, this Seeker II is a low, fast and very aggressive mini-sumo robot, where is equipped with wide tires that provide a lot of traction than other mini-sumo did.


The Seeker II’s brain is based on a Microchip PIC16F876 and is programmed in C language. Beside that, there PIC16F876 have several useful features, such as:

  1. It has two-channel hardware pulse width modulation (PWM), which is mainly for providing precise control over the speed of the two motors.
  2. Four analog to digital converters (ADC) are used to interface to two range-finder and two edge-detector sensors.
  3. A 16 bit hardware timer (It increments a 35 bit integer millisecond counter).
  4. The hardware UART, where is used to program the PIC using the bootloader and to run a menu-driven debug system.
  5. The EEPROM is used for a simple log to show the mini-sumo’s state transitions.

The Seeker II is rather smaller than any other mini-sumo robots, as it has the dimension of 10cmx10cmx3.8cm and it only weighs about 430 grams!

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