I was looking through a few of the interesting projects in this section, so I thought I'd post an intro to the digital thermometer project I've started, in case it is of interest to anyone.
Its not too complex. Its an ICL7107 digital voltmeter IC and its going to have a temperature sensor and associated circuits connected to its input.
Currently I just have the 7107 and the display built up on a matrix board. Something quite remarkable about the matrix board version, is that it worked first time
. That rarely happens
.
Hopefully it will have several input channels, and be able to display either Celcius or Farenheit. I think I'll start by using an LM335 temperature sensor as I have some experience with these from a few years ago.
This could probably be accomplished by using a programmable device, but I've never used microcontrollers and I find it cool to see stuff these days that isn't programmable.
Any ideas welcome.