The BASIC Stamp 2 SX Plus (BS2PIC) has several advantages over all previous BASIC Stamps. Commands for interfacing with parallel LCDs, I2C devices and Dallas Semiconductor One Wire parts have been added along with a polled interrupt capability. Available in a pin-compatible format for other BS2 variants, or as a 40-pin module (with 16 additional I/O pins!).
dimensions: 53 x 16 x 9mm
microcontroller: Scenix SX48AC
speed: 20MHz Turbo
program length: 4000 lines of PBASIC code
RAM (variables): 32 bytes (6 for I/Os and 26 for variables)
input/outputs: 16 + 1 dedicated RS232 communication pin "scratch pad RAM"