RD2 Kit is a simple and cheap development Kit for quick development of new applications and learning the C language. The Kit contains a T89c51RD2 microcontroller and basic peripherals.

EPROM Simulator is a very useful tool for any developer. Complete PCB, schematics, control software. Emulates a 32k/64k EPROM.

As a preface, I would like to say that HW server does not indend at all to 'criticise at every cost'. We do our own development, too, and we do understand that it is not that easy to design and document something. However, we think it necessary to inform our readers about fundamental faults and errors of electronics components that can cost a lot of time.

Very often, data needs to be transferred from a PC to another, either a notebook or a desktop model. Without a network, only the serial or parallel ports can be used for direct-connect data transfer. This article covers the often forgotten parallel port.

Great introduction to the industry standard for point-to-point and multipoint serial communication.

Great intro to the industry standard for infra-red communication. Includes hardware, components, protocols, links, etc.

In this article you will find a functional description of RS-232 signals.

IRQ's and COM devices, 8250 and Compatible UARTs...

Description of Basic Transfer Protocols used in Ethernet

In this article you will learn about Fiber optic cable & UTP categories