Finding the Average of 2 voltages

[pittuck]

Hi,

I am making a micromouse and am currently working on the sensors (got one set working ). On the left and right hand sides there will be a pair of sensors that i had planned to feed the analog output to a PIC and run a ADC on both line then calculate the average. I was wondering if it was possible in a relitvely low number of components to average the 2 voltages then read it on the PIC ADC.... (It should speed things up a bit)

Any ideas?

Thanks,

- Martyn

 

[checkmate]

Geez. I wonder how much you would save. But you could do a summing amplifier with gains of 0.5

 

[pittuck]

Its not so much for saving time, its for saving wires, i can handle 8 wires to the base to feed / recieve from the sensors, but 12 is a bit too much...

 

[Exo]

Or you could just put a resistor-divider between the 2 voltages using equal resistors. The center of the divider will be the average of the 2 voltages.

All you need is 2 resistors