Microcontrollers and analog signals

[GiTS]

If I have a simple microcontrol, say 8 pin PICAXE. Could I use it to read the voltage going through a circuit directly? And can I output varying voltages?

 

[chroot]

Some chips have ADC and DAC resources, some don't. You'd have to give us more information.

- Warren

 

[GiTS]

I want to use http://www.sparkfun.com/commerce/product_info.php?products_id=8308" to measure the current running through a wire and more or less power to a solenoid or motor depending on the current running through the wire.

 

[chroot]

According to the datasheet, it does have built-in analog-to-digital conversion circuitry, but it does not have built-in digital-to-analog circuitry. It does have digital outputs though, so you might be able to accomplish what you want with pulse-width modulation.

- Warren