Computer (PC) Interfacing Projects (02)

PC Interfacing, LPT, Paralel Port, COM Port, RS-232, RS-485, RS-422 Keyboard, Mouse, Joystick, Game Adapter, I2C, Connector, Null Modem, Mouse Schematic, Commodore 64, ISA 48, PCI, USB, EPROM/EEPROM programme, Relay, Remote Control, ADC, DAC, Stepper Motor, Servo, Thermometer, Infrared, iRDA, FM Radio, GPS Receiver, Get Power from Keyboard/LPT/COM Port, Soundblaster, Sound Card, Smart Card, Fax Modem, LCD, AT and ATX Power Supply

About Project Links

• A PC-Based LowFER Frequency Synthesizer
• Power from RS-232 port
• PCI to ISA converter
• WatchDog for ISA Bus
• 4-channel 8-bit analog-to-digital converter for PC
• Printer port ADC
• Parallel port ADC based on MAX147
• Analog Signal Acquisition for PC Printer Port
• More accurate PC/AT clock
• Getting power from RS-232 interface
• Barcode scanner
• SmartCard PC Emulator
• Relay interface add-on board for PC
• 8-way relay interface board for PC parallel printer port
• Stepper motor controller for PC parallel port
• 3-axis stepper motor controller for PC parallel port
• PC based thermometer based on Dallas DS1621
• Simple PC thermometer for serial port but using R/C network for measurement
• Dallas DS1620 based USB Digital Thermometer
• PC thermometer using PC game (joystick) port
• iRDA interface for motherboard using Vishay TFDS4500
• LCD2LPT with LIRC (LCD to LPT printer port) interface
• FM radio with PC parallel port interface
• Build your own iRDA SIR Transceiver (Dongle) using MCP2120
• PC thermometer
• Dive computer interface
• Parallel port servo controller
• GPS receiver (Gamin, Eagle etc) to PC interface cables
• Connect two CD-ROM drives to one soundcard
• Headphone driving circuit for soundcards
• Get power out of PC parallel port
• Null Printer Adapter
• PC speaker volume control circuit
• How to get power from PC to your circuits
• RS-232 surge protection
• Simple RS-232 serial port buffer circuit
• Get power out of PC RS-232 port
• Sound Blaster Microphone Preamplifier
• Sega 3D glass interfacing circuits
• Convert Atari-style joystick to PC joystick port
• Fake Joystick circuit
• Using the joystick port as general purpose input