PIC18F1320 Datasheet

RX on pin 3 TX on pin 2

Power ON
98.97 kPa,      742.3 Torr      ; 0814,0521
98.97 kPa,      742.3 Torr      ; 0814,0521
98.97 kPa,      742.3 Torr      ; 0814,0521

mpxaz4115a.pdf

mpx5010.pdf

I need to order the 296-19829-1-ND MAX3227E Datasheet

MAX3221 is the wrong chip, it only does +-5V 232 signals, I will need to remove and add the MAX3227

max3221-max3243.pdf

http://www.chrisgood.com/uav/avionics/airspeed_slide0024.htm

• Use an LM358 Op-Amp
• 80 to 110 kilopascals » 3.125 to 4.475 Volts. 3 to 4.5 volt rate will give 77.3 to 110 KPa range.