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SHU: The Running Companion

SHU: The Running Companion. Katie Klacik Brian Baumgartner Dan Strauss Kyle Anderson. Quick Project Overview. Uses GPS to record distance run Stores Data on SD card after run completed Displays information to user in an easy-to-understand format. Power Supply Circuit. 3.

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SHU: The Running Companion

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  1. SHU: The Running Companion Katie Klacik Brian Baumgartner Dan Strauss Kyle Anderson

  2. Quick Project Overview • Uses GPS to record distance run • Stores Data on SD card after run completed • Displays information to user in an easy-to-understand format

  3. Power Supply Circuit 3 Optical Encoder GPS Receiver SD Card R/W Speaker Input Buttons General Block Diagram LCD Screen 15 1 PA/PM/PB 1 SCI 1 1 1 SCI 2 MCU 5 1 PWM 0 PB/PT 1 PAD PAD 2

  4. Power Supply Block Diagram 5.0 V (150 mA current requirement) 4.35 V 5.0 V Battery Charging IC (Select) LDO LDO Boost Battery (3-4.2 V) 3.8 V (25 mA current requirement) Wallwart (5 V) 3.0 V (25 mA current requirement)

  5. PCB Layout Considerations • GPS positioned as far as possible from the battery and power supply circuit to limit noise • Bypass capacitors close to parts • Short traces between Rx and Tx lines for SCI • Try to keep the LCD trace lengths close to the same • Try to keep the design small and compact while leaving enough room for traces and spacing • Include headers (especially necessary to check MCU-LCD connections)

  6. Questions?

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