2 potentiometers connected to the A/D converter inputs
Photoresistor connected to the A/D converter input
Microphone with preamplifier connected to A/D converter input
Sockets for three types of serial EEPROMs (I2C - 24xx, MicroWire - 93xx, SPI - 25xx), 24LC01
RS232 connector (9-pin) and level converter
USB-to-serial module socket (for UMS3 module with FTDI FT232RL chip)
IR transmitter and receiver
4-digit 7-segment LED display
LED bargraph (10 positions)
Intelligent alphanumerical LCD display interface
1 individual (non-multiplexed) LED
8 pushbuttons
Piezo-buzzer (connected to the PWM output pin)
Crystal oscillator 3.2768 MHz
Circuits neccessary for an additional crystal or RC oscillator
Reset pushbutton
Stabilized 5 Volt power supply
All I/O pins can be connected to the board auxiliary circuits listed above or, via a ribbon cable, to external circuitry.
Built-in support of In-Circuit Serial Programming (using PRESTO or other ICSP-capable PIC programmer) and monitoring (SIGMA, e.g. with software INSIDER).