[Mike Lu] likes to add serial ports to his routers to use for debugging but he didn’t want to drill holes in his new RT-N12. After a bit of head-scratching he thought about repurposing the four unused ...

Dozens of serial data interfaces are used today. Most have been developed for specific applications. A few have become universal, such as I 2 C, CAN, LIN, SPI, Flex, MOST, and I 2 S. Then there’s ...

The project provides the conversion between an RS232 serial interface and an SPI interface which uses the SSP port on a 16F819 device. It is possible to send any sequence of bytes on the SPI interface ...

The microchip PIC microcontroller incorporates an I2C interface on one side using bit-banging on a 12F675 device and an RS232 serial interface on the other. The RS232 in this device refers to ...

I know, RS-232 is not gone completely but in most things it has disappeared. Recently I bought a new laptop to use in my ham shack. I have several older accessories that use RS-232 and I had hoped to ...

The simulation of a serial port in software in order to allow USB, Ethernet or some other input/output port to take its place. Virtual serial ports are necessary to enable an application that was ...

Before 2000, desktop printers for business had one of two interfaces: serial and parallel. The type of interface dictated the type of cable you used to connect the printer to the PC and how fast the ...

If you've been using computers for more than a couple of decades, you've probably used a serial port to attach peripherals like your mouse and modem. Until the USB standard rendered them obsolete in ...

I have a Dell Latitude D600 that has a blown serial port. Due to a grounding issue with a microcontroller, 120V went through the port. <BR><BR>I am guessing that the port is built into the motherboard ...

[Robert’s Retro] is one of those great YouTube channels that shows us the ins and outs of old and obscure computers. [Robert] likes going a step beyond the traditional teardown though, repairing and ...