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The algorithm used here is a simple Q-learning algorithm

motors commercially available do not normally have a desirable speed to torque ratio (the main exception being servos and high torque motors with built in gearboxes)

With gears, you will exchange the high velocity with a better torque.

the larger gear will move more slowly than the smaller gear, but it will move with more torque.

One man turned the robot back in the direction from which it had just come, saying out loud to the Tweenbot, "You can’t go that way, it’s toward the road.”

The purpose of a solar engine is to act like a power "savings account" -- a small trickle of incoming energy is saved up until a useable amount is stored

A solar-powered robot can be made to work, even in relatively-low light levels

Solar cell size is minimized

1381s are CMOS voltage-controlled triggers -- these "gate" a source until the voltage is above some "trip" limit, at which point it is allowed onto a third pin

We use them as 3- or 5-volt triggers

This chip is often considered the heart of Nv net technology

This chip is great for building robots because it has extensive input/output hardware built right into the chip. This reduces the need for external components.

The only time you will need this term is when acceleration plays a big factor with your robot. If your robot is really heavy, or gravity is not on it's side (such as steep hills), then you will need the integral term.

The sampling rate is the speed at which your control algorithm can update itself.

To increase sampling rate, you want an even faster update of sensor readings, and minimal delay in your program loop.

camera-based vision system (for light detection and navigation) two microphones, binaural hearing beat detection (allows pleo to dance and listen to music) - this feature was removed but may be added on again. eight touch sensors (head, chin, shoulders, back, feet) four foot switches (surface detection) fourteen force-feedback sensors, one per joint orientation tilt sensor for body position infrared mouth sensor for object detection into mouth infrared transmit and receive for communication with other Pleos Mini-USB port for online downloads SD card slot for Pleo add-ons infrared detection for external objects 32-bit Atmel ARM 7 microprocessor (main processor for Pleo) 32-bit NXP ARM 7 sub processor (camera system, audio input dedicated processor) four 8-bit processors (low-level motor control)