MSP430 ProjectMSP430 Project

Justin KingJustin KingOz SerpersuOz Serpersu

Nadiah KhalidNadiah KhalidTim DewTim Dew

The boardThe board

Temperature SensorTemperature Sensor

AD22103AD22103 Temperature Temperature

rangesranges 0-1000-100oo C C

Two design stylesTwo design styles 3 pin 3 pin 8 pin chip 8 pin chip

www.analog.comwww.analog.com

Pin LayoutPin Layout

Pin 1Pin 1 Recommended 3.3 VRecommended 3.3 VSS

Used 2.8 V from Used 2.8 V from boardboard

Pin 2Pin 2 VVOO – voltage output – voltage output Used to calculate Used to calculate

temperaturetemperature Pin 3Pin 3

Ground - 0 VGround - 0 V

Board #2Board #2

PC boardPC board Transistor AdapterTransistor Adapter

ESD protectionESD protection Temperature Temperature

protection from protection from soldering ironsoldering iron

ProgrammingProgramming

VVoutout = .25V + 28mv/ = .25V + 28mv/ooC x TC x T sample = ADC12MEM6;sample = ADC12MEM6;

Reads VReads VOO from sensor from sensor sample = 47.143*sample - 892.2;sample = 47.143*sample - 892.2;

Conversion from V to temperature (C) Conversion from V to temperature (C) sample = (sample*9./5)+3200;sample = (sample*9./5)+3200;

Conversion from C to FConversion from C to F lcd_word(sample,2);lcd_word(sample,2); lcd_char(0,’F’);lcd_char(0,’F’);

DisplayDisplay

Results ErrorsResults Errors

Approximate 10% Approximate 10% deviation deviation

Ex. Actual : 73Ex. Actual : 73oo Measured : 66.9Measured : 66.9oo

Responds to Responds to different different environment environment temperaturestemperatures

Connection of Connection of boards using boards using alligator clipsalligator clips

Voltage source Voltage source varied from 3.3 varied from 3.3 recommendedrecommended