Ciarcia's Circuit Cellar, Volume 4
Provides advice and instructions for building a weather station, a videodisc controller, a text-to-speech synthesizer, an IBM PC compatible microcomputer, a handheld LCD terminal, a modem, and a code-activated switch.
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active-low ADPCM algorithm amplifier analog anemometer ASCII BASIC binary BIOS block diagram breakout box buffer BYTE channel character chip Ciarcia circuit board Circuit Cellar circuit of figure circuitry clock signal color components computer system connected contains counter cycle D/A converter data bus data rate decoding disc disk display drive encoding EPROM filter floppy-disk frequency function goto graphics hardware hexadecimal IBM Personal Computer infrared input integrated circuit Intel interface interrupt keyboard latch logic memory Micromint microprocessor Microvox mode modem modulation operation output parallel peripheral devices phoneme pointer processor pulse puter real-time clock RESET resistor sample schematic diagram selected shown in figure shown in photo signal speech synthesizer sprite Steve stored Sweet Talker switch SYSCLKO SYSDAT7 terminal text-to-speech tion tone transmitted videodisc voice voiceprint voltage Votrax waveform