Schematic Overview
The IR range sensor that we'll be working with has only three pins on it:
Vcc - This is for the +5v source.
Gnd - Connect this pin to ground.
Vo - The output analog voltage that tells us distance.
![](img/ir_schem.gif)
Schematic Specifics
Since we're using the p40 development board the power circuitry and all other pic connections are taken care of. We only have to worry ourselves with connecting the 1 pin from the sensor to the pic and the other two to Vcc and GND.
The Vo pin from the sensor will connect to the RA1/AN1 pin (Pin 3) on the pic. This is an analog input pin which has the capability to convert analog-to-digital. This conversion will give us a digital value & tell us how far away any object seen by the sensor is.
The IR range sensor that we'll be working with has only three pins on it:
Vcc - This is for the +5v source.
Gnd - Connect this pin to ground.
Vo - The output analog voltage that tells us distance.
![](img/ir_schem.gif)
Schematic Specifics
Since we're using the p40 development board the power circuitry and all other pic connections are taken care of. We only have to worry ourselves with connecting the 1 pin from the sensor to the pic and the other two to Vcc and GND.
The Vo pin from the sensor will connect to the RA1/AN1 pin (Pin 3) on the pic. This is an analog input pin which has the capability to convert analog-to-digital. This conversion will give us a digital value & tell us how far away any object seen by the sensor is.