Pololu - Arduino Uno DIP Edition

The Arduino Uno, the successor to the Arduino Duemilanove, is a microcontroller board based on a removable, dual-inline-package (DIP) ATmega328 AVR microcontroller. It has 20 digital input/output pins (of which 6 can be used as PWM outputs and 6 can be used as analog inputs), a 16 MHz resonator, a USB connection, a power jack, an in-circuit system programming (ICSP) header, and a reset button. The Arduino has an extensive support community, which makes it a very easy way to get started working with embedded electronics.

Version 3.0 CNC Shield at Rs 127/piece, Arduino Electronic Development Board in Mumbai

Pololu Zumo Shield for Arduino User's Guide - Pololu Robotics and

Arduino Uno Micro Controller The Arduino Uno is a micro controller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs). 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the micro controller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

Arduino Uno - R3

Motoron M3H256 Triple Motor Controller Kit for Raspberry Pi - Pololu 5034 Botland - Robotic Shop

This add-on board makes it easy to control two high-power DC motors with a Raspberry Pi. Its twin discrete MOSFET H-bridges support a wide 6.5 V to 30