Pic12f629-i/p

[skimask]

If I wanted to monitor a range of temp's and enable an output only between 2 temp's i.e. a pin go high only between 30ºC and 50ºC but as I'm not using an LCD display to display the temp, how would I do that?
i've done it before using an lcd but I'm not sure if the same works or not when you dont have an lcd connected or displaying the temp

Use a Red/Green bicolor LED, or maybe continuously flash an led on the output, have it output a series of pulses relating to the actual temperature.
If you've got an o'scope, you could output a pulse corresponding to the temp (i.e. 50C = 50ms pulse).

[karenhornby]

Last of my stupid questions for today, can I just tell the led to light when it gets to say 30ºC and go off at 50ºC?

[skimask]

Last of my stupid questions for today, can I just tell the led to light when it gets to say 30ºC and go off at 50ºC?

Quite frankly, it depends on whether or not you can figure out how to code it that way or not.

Let me add on to that statement a bit...
It depends on whether or not you can write the correct code to read the temperature output from a DS18B20 and create a single or pair of IF/THEN statements to either set or reset the port pin that the LED is connected to.