SiRFstarIII™ 20-channel GPS SMD compact module/receiver with enhanced high altitude power saving modes.
The ISM300F2-C5-V0004 module is programmed with HIGH ALTITUDE BUILD, ceiling 135,000 feet, and works at cold temperatures for balloon applications.
More information to come. Used on Ava flight computer. Project Ava
External link : ISM300F2-C5-V0004
The following files were created based on Upu's original board for the ISM300F2 chip:
ism300f2_breakout.zip
Expect to see a “Board and schematic are not consistent” error when you open this. Ignore it, the board works fine.
The number of pins were reduced from 8 to 5, since several of the busses are now connected. The 5th pin, the ON/OFF pin, is optional, and the board will work even if this pin is not soldered to anything. It was left open for anyone with a desire to control the power consumption of the chip to be able to use it, per Inventek's guide.