* Typically this is used to send lowlevel information like the battery voltage to the plotting facilities of
* the groundstation. The data here should be converted to human-readable values before being passed, so ideally
* SI units.
* SI units.
*
* @param uasId ID of this system
* @param name name of the value, e.g. "battery voltage"
* @param unit The units this variable is in as an abbreviation. For system-dependent (such as raw ADC values) use "raw", for bitfields use "bits", for true/false or on/off use "bool", for unitless values use "-".
* @param unit The units this variable is in as an abbreviation. For system-dependent (such as raw ADC values) use "raw", for bitfields use "bits", for true/false or on/off use "bool", for unitless values use "-".
* @param value the value that changed
* @param msec the timestamp of the message, in milliseconds