GPS Schematics

[adamgreig]

• [x] Double check ON/OFF should be connected directly to WAKEUP, perhaps we can just tie WAKEUP on and switch ON/OFF ourselves
• [x] ON/OFF line is not actually connected to that label (needs a junction or draw a horizontal line from the label to intersect the existing wire)
• [x] Check I2C resistors are as-per datasheet, as typically pullups and not series resistors are used (but this might be OK)
• [x] Should TM_GPIO5 be connected to something? It just has a bit of wire at the moment
• [x] Add no-connects (press q or use the X button on the right) to non-connected pins
• [x] Rename labels to reflect the pin's name. Since the name is mostly for the purpose of connecting on the microcontroller, it is more helpful if it's named "GPS_SDA" rather than "Connect to microcontroller I2C SDA"
• [x] I2C labels should be SDA and SCL for conformity with I2C standard
• [x] Only need one of I2C, SPI or Serial to interface to the microcontroller, and probably serial is easiest
• [x] Antenna needs adding, see M2R schematic for example
• [x] Add 100nF capacitor to power pins

[boyuanxiao]

Changed schematic to that shown on pg 15 http://www.farnell.com/datasheets/1833178.pdf Wakeup is an output pin so I left it unconnected unless we need to see what state the GPS is in, on-off connected to input from microcontroller. Is the idea to send the data to the microcontroller and then send the lot back to base, or to have a separate channel for the gps?