Hi,
Since most picaxe´s have a very limited amount of analoge inputs, I was wondering if its possible to make a switch using some of the digital outputs.
For exsample. using 4 outputs to control which sensor is being read.
I tried a simple expiriment with a transistor and a LM35 sensor, but when I apply power my meter reads 3.6V from a 9V source on the LM35 output pin (which should be 0.26V).
I have made a rough schmatic here
As stated readout is 3.6V and should be less than 1V (10mV per degree C)
/Jan