PIC to PC USB 2.0 interface with FT245BM

Here is how to interface a PIC18F452 to a PC via the USB port. The PIC captures the ambient temperature with a SPI sensor TC77. Its value is then transferred to the USB-interface.

16 bit PC Serial Port Receiver

A logic analyzer using the PC's parallel port

A logic analyzer is useful in electronic development and debugging, especially where fast logic circuits are involved with lots of signals whose relations have to be verified or examined.

A serial to parallel converter using the AT89C2051

This is a basic serial to parallel converter written in 8051 assembler. This is probably a good example of the uses to which an AT89C2051 can be put - it would be hard to get a serial to parallel converter much simpler than the single 20 pin IC in this ci

Drawing power from a PC parallel port

Interfacing to the IBM-PC Parallel Printer Port

Laptop Computer Serial Port Power Booster

Circuit which enables to run a self-powered PIC programmer with a notebook computer where it does not work directly because of low current output serial port

Modified LudiPipo Serial Port Programmer

Here is a modified LudiPipo Serial Port PIC Programmer that has been used to programme the 10F204, 12F675, 16F628, 16F676, 16F876 and 16F877 chips.

Printer port controls A/D conversion

circuit uses a microcontroller (PIC16C71) as an A/D converter and a data organizer

Printer port hosts precision analog I/O board

12-bit analog I/O board that plugs into a PCs printer port