format:
{
"type": "ROS msg data type",
"topic": "rostopic to publish too",
"iter": "how many times should it be published",
"data": {
"field type": "value"
.
.
.
}
}
{
"type": "geometry_msgs::Twist",
"topic": "/chatter",
"iter": "40",
"data": {
"linear.x": "30",
"linear.y": "30",
"linear.z": "45",
"angular.x": "0",
"angular.y": "0",
"angular.z": "0"
}
}{
"data": "std_msgs::String",
"topic": "/chatter"
"itter": "1",
"set": {
"data": "hello world"
}
}