Controlling Analog Devices thru Serial Port

[alangb]

Can any one shed any light onto how you would go about controlling analogue devices through a serial port?

Many thanks

[MrShickadance]

Yeah! you send out bit!

You need to be more specific

[PhilipG]

What kind of analog device do you want to control. It's impossible to give you any kind of answer without a little more detail.

As far as serial goes, there must be a device that captures ASCII codes. This is typically done with a microcontroller. On receipt of for example 0x5F, the microcontroller controls whatever analog circuit you have.

Typically, when I design hardware, I set up ASCII send\recieve codes for "low-level hardware communication". For example, If I wanted to start a motor through a PC software application, I would send out a 0x5F. The microcontroller recieves the serial data, looks at it, and says..that means turn on the motor. Of course the microcontroller will "output" a signal that must be amplified by "analog", which in turn starts the motor.

Hope that Helps,
Phil