2018-competition-end: Wave position (#255)

* initializing of queue and keeping constant number of elements after initialization ends

* debug functions

* copying queue after refresh period and fitting curve

* sine changed to cosine, dubegging methods added

* setup file for integrating wave_position with ROS

* get_position method, added test cases, needs debugging

* enable get_position only after initialization completes

* docstring

* cleaning up

* integrating wave_position with ROS

* removing time dependency during initialization

* moving wave_position settings to ROS parameters

* adjusting time_range for wave_position

* debugging, reducing order of model function, adding bounds to curve_fit

2017 competition end

The boat: The Black Python

Electronics:

1. Main controller: Raspberry Pi 3 Model B
2. GPS: uBlox M8Q
3. IMU: Xsens MTi3
4. Wind sensor: MiniIMU10 with custom wind vane
5. Servo: HiTec 785 (Winch) Futaba S3003 (Rudder)

We will also release the image file for Raspberry Pi soon.
The WiFi SSID is the name of skipper, this year is Zhenghe, Chinese mariner, explorer, diplomat, fleet admiral. From 1405 to 1433, he commanded expeditionary voyages to Southeast Asia, South Asia, Western Asia, and East Africa.

2016-competition-end

The boat: The Black Python

Main electronics:

1. Main controller: Raspberry Pi 2 model B
2. GPS: uBlox M8Q
3. IMU: Polulu MiniIMU10-v4
4. Wind sensor: Polulu MiniIMU10-v4 (magnetometer used only) with custom wind vane
5. Servo: HiTec 785 (Winch), Futaba S3003 (Rudder)

SSID with SD image: Magellan
Magellan, a Portuguese explorer who organised the Spanish expedition to the East Indies from 1519 to 1522, resulting in the first circumnavigation of the Earth.