Parallax BASIC Stamp development board

BASIC Stamp 2 microcontroller. Solderless breadboard for building circuits. I/O pin, power and ground headers brought alongside breadboard. Built-in series resistors help protect the I/O pins from mis-wiring. 500 mA voltage regulator for projects. Program via a USB Mini-B connector with built-in RS-232 serial converter. Battery clip for 9 V battery. Difficulty level: Medium.