I need an infrared transciever chip that will work as a universal remote control for my graduation project?

i need an infrared reciever can be connected to a PC using USB


and an infrared transmitter that can be connected to a microcontroller using serial portI need an infrared transciever chip that will work as a universal remote control for my graduation project?
Do a search on IR RECIVER USB and you will find sites for several companies that sell transceivers which convert IR to USB and vica versa. A couple of links are given below.





As for an IR transmitter for a microcontroller serial port, it consists of an infrared LED and a current limiting resistor. Depending upon the desired drive current for the LED (which affects operating range) and the current capabilities of the port used, a single transistor buffer will likely be required to boost the current of the driving signal.





A general purpose NPN signal transistor with a current limiting resistor in the base circuit may be driven from the port. The emitter is tied to ground and the LED and its current limiting resistor are connected in series between the collector and Vdd.





Also, you may wish to search epanorama.com for other possibilities. Good luck!





WKI need an infrared transciever chip that will work as a universal remote control for my graduation project?
Better to ask this in science/engineering. Infra red remotes usualy transmit a modulated sigal at about 40khz. You need an infrared LED and a 40 khz signal generator circuit. There are pre-made demodulator modules around. You may wish to use the serial port instead of the USB port for recieving the demodulated signal. MIKE