Hi everyone, I'm proposing a few new messages for sensor_msgs. These messages are intended to provide common, shareable data types for new low cost and mobile sensing applications. Some examples of these sensors are low cost breakout boards by Sparkfun.com or the available sensors in a modern Android or Apple smartphone/tablet. The proposed messages are: sensor_msgs/Temperature sensor_msgs/Illuminance sensor_msgs/MagneticField sensor_msgs/Pressure sensor_msgs/RelativeHumidity Please leave questions, concerns, and comments on the review page: http://ros.org/wiki/sensor_msgs/Reviews/2012-11-16-Low-Cost-Sensor-Roundup_API_Review Thanks, - Chad