Just a little bit more: http://www.aliexpress.com/item/Best-prices-UNO-R3-MEGA328P-for-Arduino-Compatible-Free-Shipping-Dropshipping/32213964945.html http://www

Just a little bit more: http://www.aliexpress.com/item/Best-prices-UNO-R3-MEGA328P-for-Arduino-Compatible-Free-Shipping-Dropshipping/32213964945.html http://www.aliexpress.com/item/Best-prices-UNO-R3-MEGA328P-f... But if you are not planning on using shields you can get arduino mini for ~$1.3 or nano for ~$1.8