KeyVerter®
Description: KeyVerter® converts key stroke events from any PS/2 keyboard (small DIN connector) into an RS-232 and TTL serial output stream. Keyboard enable your favorite microcontroller like Parallax's BASIC Stamp 2 using only one 9600 baud serial input pin. Specifications: Dimensions: 2.7" x 1.825" x .6" Weight: 0.9 oz. Input voltage: 7.5 to 12.0 volts DC (17 ma @ 9 volts without keyboard attached) Operating temperature: -10 C to +70 C RS-232 output: 9600 baud, 8 data bits, 1 stop bit, no parity, inverted TTL output: 9600 baud, 8 data bits, 1 stop bit, no parity, inverted Connections: Pad/Connector Hookup To DC IN Power supply +7 to +12 volts GND Power supply ground RS-232 OUT Microcontroller RS-232 serial input (Female DB-9 pin 2) GND Microcontroller RS-232 ground (Female DB-9 pin 5) TTL OUT Microcontroller TTL serial input GND Microcontroller TTL ground J1 PS/2 keyboard Configuration and Operation: KeyVerter® has two modes of reporting key stroke informa