ubcst/telemetry

Repository of Team's telemetry system.

telemetry's Issues

Increase Xbee Baud rate

Investigate PC - Xbee1 - Xbee2 - Arduino baud rate.

9600 -> 115200

Some material that may help:
http://www.digi.com/support/forum/4787/using-the-xbee-at-115-200-baud-updated-16-march-2010
http://forum.arduino.cc/index.php?topic=13383.0

@treyu @jello-CE-24

Don't use "using namespace xxx"

Try not to use "using namespace xxxx"

Might save time now, but incorrect library calls due to the implicit nature might pop out this way.

x years down the line some poor software guy will tear his own hair out trying to find where things might have been implicit and causing a bug.

Found in: main.cpp

XBee Comms Program - Windows not working correctly at the moment

Use the XBee-Linux program instead.
The XBee-Linux program communicates with the XBees perfectly as of Sept. 25, 2015. This program should be used as a base to build on over the Win32 program for now.

The XBee Comms Program for Windows is not working correctly at the moment. A lot of it comes from issues with working with Win32 functions and data types, which is not an issue with Linux.

• The sendData() function writes to the serial port properly but the XBee is only sending the data intermittently.
• The CSerial.Write() function used in sendData() requires a LPCSTR (long char pointer to string) but the sendData() function uses strings for arguments. Conversion from a pointer to a string is possible using std::string.c_str() but the implementation hasn't been tested yet.
• The receiveData() function reads the serial port but has no way of detecting when there is data on the port or not. As of now, the program blocks everything while waiting for a message to come in, which is highly inefficient. The receiveData() function should use Win32 events to trigger data reads on the port.
• The receiveData() function also fills up the data buffer faster than it can output the data. This is currently resulting in lost data.

All of these issues can be fixed after the XBees are approved for use, as the Linux program can be used to send data to the XBees for now.