Schematic diagram showing connections between micro controller and FPU
unit and LCD connection in 4 bit mode.
Also you can see the temperature sensor DS18S20. Parallel port to
program micro (Atmega128). And serial port for debugging FPU unit.
ET-AVR Stamp Module with FPU chip on board.
ET - AVR ISP
ET-AVR Stamp Development board with FPU chip and ds1820
sensor.
ET-AVR Stamp Development board with FPU chip and
LCD.