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Here's What A Computer's Serial Port Was For (And Where It's Still Necessary)

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 ...
EDN

PC Serial Port IR Communication

The circuit is aimed to provide a method for receiving serial data on one pin and transmitting serial data on another with a modulation at the infrared detectors band pass frequency. A tiny 8-pin ...
Electronic Design

Use A PC Serial Port For Pulse-Encoded Communications

The simple method described here evaluates a one-wire device that uses pulse-width-encoded communications from a PC serial port. Communications errors such as parity and acknowledge are monitored. The ...
Hackaday

serial port

[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 ...
EDN

Homemade PIC Programmer

The project was a modification of a JDM PIC programmer and has to be connected through the serial communication port of the computer without the use of any external power supply. The project was a ...
Electronic Design

Bootload Wirelessly Using the Bluetooth Serial Port Profile

A bootloader makes it possible to update a product’s firmware in the field. Common communication interfaces like UART, I 2 C, SPI or USB can be used to update the firmware, which typically involves a ...