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Added README.md for pendulum_msgs. (#577)
* ➕ 📖 Added README.md for pendulum_msgs. No instructions to verify. Added supplementary info in README.md for easier references. Signed-off-by: Bey Hao Yun <[email protected]>
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## **What Is This?** | ||
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The **pendulum_msgs** ROS 2 package is a dependency of **pendulum_control** ROS 2 package. | ||
It contains `JointCommand.msg`, `JointState.msg` and `RttestResults.msg` | ||
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Please refer to [pendulum_control](https://github.com/ros2/demos/tree/rolling/pendulum_control) for more details. | ||
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### **JointCommand.msg** | ||
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```msg | ||
float64 position | ||
``` | ||
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### **JointState.msg** | ||
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```msg | ||
float64 position | ||
float64 velocity | ||
float64 effort | ||
``` | ||
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### **RttestResults.msg** | ||
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```msg | ||
builtin_interfaces/Time stamp | ||
JointCommand command | ||
JointState state | ||
uint64 cur_latency | ||
float64 mean_latency | ||
uint64 min_latency | ||
uint64 max_latency | ||
uint64 minor_pagefaults | ||
uint64 major_pagefaults | ||
``` | ||
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## References | ||
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- Real-time Jitter Measurements under ROS 2: The Inverted Pendulum Case: https://www.researchgate.net/publication/350353690_Real-time_Jitter_Measurements_under_ROS2_the_Inverted_Pendulum_case |