NXP LPC1114FN28 is 28pin DIP packaged, 32-bit ARM Cortex-M0, 32kB Flash, 4kB RAM low-cost MCU. We can buy this @ $2.55 from Mouser, @ $1.5 at Akihabara. :) I made PCB to first-touch LPC1114FN28. It have Reset and ISP button, access to FTDI Basic, LEDs. In case of using external clock source, this PCB have XTAL space. Here is schematics. You will need,