1. MSP430 Project Justin King Oz Serpersu Nadiah Khalid Tim Dew

2. The board

3. Temperature Sensor AD22103 AD22103 Temperature ranges Temperature ranges 0-100 o C 0-100 o C Two design styles Two design styles 3 pin 3 pin 8 pin chip 8 pin chip www.analog.com www.analog.com

4. Pin Layout Pin 1 Pin 1 Recommended 3.3 V S Recommended 3.3 V S Used 2.8 V from board Used 2.8 V from board Pin 2 Pin 2 V O – voltage output V O – voltage output Used to calculate temperature Used to calculate temperature Pin 3 Pin 3 Ground - 0 V Ground - 0 V

5. Board #2 PC board PC board Transistor Adapter Transistor Adapter ESD protection ESD protection Temperature protection from soldering iron Temperature protection from soldering iron

6. Programming V out =.25V + 28mv/ o C x T V out =.25V + 28mv/ o C x T sample = ADC12MEM6; sample = ADC12MEM6; Reads V O from sensor Reads V O 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 F Conversion from C to F lcd_word(sample,2); lcd_word(sample,2); lcd_char(0,’F’); lcd_char(0,’F’); Display Display

7. Results Errors Approximate 10% deviation Approximate 10% deviation Ex. Actual : 73 o Measured : 66.9 o Ex. Actual : 73 o Measured : 66.9 o Responds to different environment temperatures Responds to different environment temperatures Connection of boards using alligator clips Voltage source varied from 3.3 recommended