### Install Python and Dependencies
Source: https://github.com/ardupilot/mavproxy/blob/master/ANDROID.md
Installs the Python interpreter and required development libraries for MAVProxy.
```bash
pkg install python
```
```bash
pkg install libxml2*
```
```bash
pkg install libxslt*
```
```bash
pkg install python-*
```
--------------------------------
### Install MAVProxy via Pip
Source: https://github.com/ardupilot/mavproxy/blob/master/ANDROID.md
Configures the Python environment and installs MAVProxy and its dependencies.
```bash
pip install --upgrade pip
```
```bash
pip install wheel
pip install pymavlink
```
```bash
MATHLIB="m" pip3 install numpy
```
```bash
pip install mavproxy
```
--------------------------------
### Locate and Run MAVProxy
Source: https://github.com/ardupilot/mavproxy/blob/master/ANDROID.md
Commands to find the installation path and execute MAVProxy with optional UDP parameters.
```bash
pkg install mlocate
updatedb
```
```bash
locate mavproxy.py
```
```bash
mavproxy.py
mavproxy.py --master=udp:1.2.3.4:14550
```
--------------------------------
### Initialize Map and State Updates
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
Setup function for the map provider and periodic telemetry data fetching.
```javascript
var map; var map_layer; var marker_clip; var trail_plotter; var last_state_update_time; var state = {}; state.lat = 20.0; state.lon = 0.0; state.heading = 0.0; function initMap() { // name of a div element: var parent = 'map'; // defaults to Google-style Mercator projection, so works // out of the box with OpenStreetMap and friends: // var template = 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png'; // var provider = new MM.TemplatedMapProvider(template); // -------------------- // Blue Marble // var provider = new MM.BlueMarbleProvider(); // -------------------- // Microsoft Bing // please use your own API key! This is jjwiseman's! var key = "Anmc0b2q6140lnPvAj5xANM1rvF1A4CvVtr6H2VJvQcdnDvc8NL-I2C49owIe9xC"; var style = 'AerialWithLabels'; var provider = new MM.BingProvider(key, style); map_layer = new MM.Layer(provider); // without a size, it will expand to fit the parent: map = new MM.Map(parent, map_layer); marker_clip = new MarkerClip(map); //var marker = marker_clip.createDefaultMarker(20); //var location = new MM.Location(0, 0); //marker.title = "lovedrone"; //marker_clip.addMarker(marker, location); map.setCenterZoom(new MM.Location(20.0, 0), 20); setInterval(updateState, 500); $('#layerpicker').change(updateLayer); trail_plotter = new TrailPlotter(marker_clip); } function updateState() { $.getJSON("data", function(data){ state = data; updateMap(); update
```
--------------------------------
### Upgrade Termux Packages
Source: https://github.com/ardupilot/mavproxy/blob/master/ANDROID.md
Updates the package repository and installed packages to the latest versions.
```bash
pkg upgrade
```
--------------------------------
### Implement Trail Plotter Logic
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
JavaScript class to periodically add trail markers to the map based on the current drone state.
```javascript
function TrailPlotter(marker_clip) { this.marker_clip = marker_clip var last_trail_time = 0; this.update = function() { var now = new Date().getTime(); if (last_trail_time == 0 || now - last_trail_time > 10000) { var trail_marker = this.marker_clip.createDefaultMarker(2); this.marker_clip.addMarker(trail_marker, new MM.Location(state.lat, state.lon)); last_trail_time = now; } } }
```
--------------------------------
### Identify Joystick Controls with findjoy
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Use the `findjoy` script to identify controls on your joystick. Run this script from the command line and follow the on-screen prompts to map your joystick inputs.
```python
python -m MAVProxy.modules.mavproxy_joystick.findjoy
```
--------------------------------
### Define Map and Telemetry Styles
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
CSS rules for map container dimensions, drone icon positioning, and telemetry status indicators.
```css
body { width: 100%; margin: 0px 0px 0px 0px; } html { width: 100%; } #map { height: 100%; width: 100%; } #drone { background-image: url('drone-sm.png'); background-repeat: none; position: absolute; top: 45%; left: 45%; height: 100px; width: 150px; -moz-transition: all 2s ease; -webkit-transition: all 2s ease; -o-transition: all 2s ease; -ms-transition: all 2s ease; transition: all 2s ease; } .telemetry_header { position: absolute; top: 0px; left: 0px; z-index: 1; width: 100%; background-color: rgba(0, 0, 0, 0.5); color: white; padding-left: 10px; padding-right: 10px; padding-top: 1px; padding-bottom: 1px; font-family: 'Droid Sans Mono', Courier, Courier News, monospace; font-size: 24px; } .layerpicker { display: inline; } .link { padding-left: 3px; padding-right: 3px; } .ok { background-color: green; color: white; } .slow { background-color: yellow; color: black; } .error { background-color: red; color: black; }
```
--------------------------------
### YAML Description Section
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Defines a simple string description for the joystick. Can use YAML block scalars for multi-line text.
```yaml
description: This is a description.
```
```yaml
description: >
This is a much longer description. It may contain many lines
and even multiple paragraphs, although if you're trying to put
documentation into the description maybe you should find a
better place for it.
```
--------------------------------
### YAML Match Section
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Specifies fnmatch patterns to identify compatible joystick devices. The first matching definition is used.
```yaml
match:
- ACME Joystick Co*
- Widget Ltd*
```
--------------------------------
### Button Control Mapping
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Configures a joystick button as a momentary switch. Sets channel to outhigh when pressed and outlow when released.
```yaml
- channel: 1
type: button
id: 1
```
--------------------------------
### Manage Map Markers
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
JavaScript class for handling marker creation, positioning, and updates within a map container.
```javascript
function MarkerClip(map) { this.map = map; var theClip = this; var markerDiv = document.createElement('div'); markerDiv.id = map.parent.id + '-markerClip-' + new Date().getTime(); markerDiv.style.margin = '0'; markerDiv.style.padding = '0'; markerDiv.style.position = 'absolute'; markerDiv.style.top = '0px'; markerDiv.style.left = '0px'; markerDiv.style.width = map.dimensions.x+'px'; markerDiv.style.height = map.dimensions.y+'px'; map.parent.appendChild(markerDiv); function onMapChange() { theClip.updateMarkers(); } map.addCallback('drawn', onMapChange); map.addCallback('resized', function() { markerDiv.style.width = map.dimensions.x+'px'; markerDiv.style.height = map.dimensions.y+'px'; theClip.updateMarkers(); }); this.updateMarkers = function() { for (var i = 0; i < this.markers.length; i++) { this.updateMarkerAt(i); } }; this.markers = []; this.markerLocations = []; this.markerOffsets = []; this.addMarker = function(element, location, offset) { element.style.position = 'absolute'; if (!offset) { offset = new MM.Point(element.offsetWidth/2, element.offsetHeight/2); } markerDiv.appendChild(element); this.markers.push(element); this.markerLocations.push(location); this.markerOffsets.push(offset); this.updateMarkerAt(this.markers.length-1); }; this.setMarkerLocation = function(index, location) { this.markerLocations[index] = location; } this.updateMarkerAt = function(index) { var point = map.locationPoint(this.markerLocations[index]), offset = this.markerOffsets[index], element = this.markers[index]; MM.moveElement(element, { x: point.x - offset.x, y: point.y - offset.y, scale: 1, width: 10, height: 10 }); }; var createdMarkerCount = 0; this.createDefaultMarker = function(size) { var marker = document.createElement('div'); marker.id = map.parent.id+'-marker-'+createdMarkerCount; createdMarkerCount++; px_size = size + 'px'; marker.style.width = px_size; marker.style.height = px_size; marker.style.margin = '0'; marker.style.padding = '0'; marker.style.backgroundColor = '#ffffff'; marker.style.borderWidth = '2px'; marker.style.borderColor = 'black'; marker.style.borderStyle = 'solid'; marker.style.MozBorderRadius = px_size; marker.style.borderRadius = px_size; marker.style.WebkitBorderRadius = px_size; return marker; }; }
```
--------------------------------
### Minimal Joystick Definition
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
A basic YAML configuration for a joystick, mapping axes to RC channels.
```yaml
description: This is a sample joystick definition.
match:
- ACME Joystick Company*
controls:
# map axis id 2 to rc channel 1
- channel: 1
type: axis
id: 2
# map axis id 3 to rc channel 2
- channel: 2
type: axis
id: 3
# map axis id 1 to rc channel 3
- channel: 3
type: axis
id: 1
invert: true
# map axis id 0 to rc channel 4
- channel: 4
type: axis
id: 0
```
--------------------------------
### Map Hat Switch to Channel Outputs
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Configure a hat switch to control specific channels. When the axis moves negative, the channel is set to `outputlow`; when positive, it's set to `outputhigh`. No change occurs when the axis returns to zero.
```yaml
- channel: 7
type: hat
id: 0
axis: x
- channel: 8
type: hat
id: 0
axis: y
```
--------------------------------
### Multibutton Control Mapping
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Maps multiple buttons to the same channel, each setting a specific value when pressed. No change occurs on button release.
```yaml
- channel: 5
type: multibutton
buttons:
- id: 0
value: 1200
- id: 1
value: 1300
- id: 2
value: 1400
- id: 3
value: 1500
```
--------------------------------
### Rover Mode Definitions
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_chat/assistant_setup/rover_modes.txt
Maps rover mode names to their integer identifiers. These modes dictate the vehicle's control and behavior.
```python
MANUAL = 0, // Pilot directly controls the vehicle's steering and throttle
ACRO = 1, // Pilot controls the turn rate and speed
STEERING = 3, // Pilot controls the steering using lateral acceleration. throttle stick controls speed
HOLD = 4, // motor and steering outputs are disabled. Rovers will stop, boats will drift in this mode
LOITER = 5, // hold position at the current location
FOLLOW = 6, // follow a GPS-enabled device
SIMPLE = 7, // Pilot controls the vehicles by moving the combined steering and throttle stick in the direction they wish to move. The direction of movement is relative to the vehicle's heading when first powered on
DOCK = 8, // Automatic docking mode
CIRCLE = 9, // Circle around a location recorded when the vehicle entered this mode
AUTO = 10, // Fully autonomous mode following pre-programmed waypoints
RTL = 11, // Return to Launch point
SMART_RTL = 12, // Creates a path back to the launch point based on the rover's traveled path
GUIDED = 15, // Guided control via a ground station or companion computer
INITIALISING = 16, // Initialization mode at startup
```
--------------------------------
### Plane Flight Mode Enumeration
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_chat/assistant_setup/plane_flightmodes.txt
Mapping of flight mode names to integer constants. Modes prefixed with Q are specific to QuadPlane configurations.
```text
MANUAL = 0, // pilot has direct control over servos without stabilization
CIRCLE = 1, // Circle around a GPS waypoint
STABILIZE = 2, // Level flight stabilization
TRAINING = 3, // Limits the roll and pitch angles to keep the aircraft stable
ACRO = 4, // Full manual aerobatic control with some stabilization
FLY_BY_WIRE_A = 5, // Stabilized flight with manual throttle
FLY_BY_WIRE_B = 6, // More stabilization than FLY_BY_WIRE_A
CRUISE = 7, // Mixed manual and automatic throttle control
AUTOTUNE = 8, // Automatically tune the PID controller for optimal performance
AUTO = 10, // Fully autonomous flight, following a pre-programmed mission
RTL = 11, // Return to Launch point
LOITER = 12, // Circle around a point while maintaining altitude
TAKEOFF = 13, // Automated takeoff sequence
AVOID_ADSB = 14, // Avoidance maneuver triggered by ADS-B aircraft detection
GUIDED = 15, // Remotely guided commands from GCS or companion computer
INITIALISING = 16, // Initialization mode at startup
QSTABILIZE = 17, // QuadPlane's stabilize mode. Similar to Copter's stabilize mode
QHOVER = 18, // QuadPlane's hover mode. Similar to Copter's AltHold mode
QLOITER = 19, // QuadPlane's loiter mode. Similar to Copter's Loiter mode
QLAND = 20, // QuadPlane's land mode. Similar to Copter's Land mode
QRTL = 21, // QuadPlane's Return to Launch mode. Similar to Copter's RTL mode
QAUTOTUNE = 22, // QuadPlane's autotune mode. Similar to Copter's AutoTune mode
QACRO = 23, // QuadPlane's acrobatic mode. Similar to Copter's Acro mode
THERMAL = 24, // Thermal detection and exploitation mode
LOITER_ALT_QLAND = 25, // QuadPlane's loiter to alt then land mode
```
--------------------------------
### Axis Control Mapping
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Maps a joystick axis to an RC channel, allowing scaling with input and output ranges.
```yaml
- channel: 1
type: axis
id: 1
```
--------------------------------
### Toggle Button Control Mapping
Source: https://github.com/ardupilot/mavproxy/blob/master/docs/JOYSTICKS.md
Implements a toggle or rotary switch behavior for a button. Cycles through values with each press.
```yaml
- channel: 1
type: toggle
id: 2
values:
- 1000
- 2000
```
```yaml
- channel: 1
type: toggle
id: 2
values:
- 1000
- 1500
- 2000
```
--------------------------------
### Update Map Center
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
Sets the center of the map to the current aircraft location.
```javascript
function updateMap() {
var location = new MM.Location(state.lat, state.lon);
map.setCenter(location);
}
```
--------------------------------
### Update Map Layer
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
Switches the map tile layer based on the selected layer number. Supports Microsoft Bing Maps with different styles (Aerial, Birdseye, Road) and Blue Marble.
```javascript
function updateLayer() {
var provider;
var layerNum = $(this).attr('value');
console.log("Switching to layer " + layerNum);
var bing_key = "Anmc0b2q6140lnPvAj5xANM1rvF1A4CvVtr6H2VJvQcdnDvc8NL-I2C49owIe9xC";
if (layerNum == '1') {
var style = 'AerialWithLabels';
provider = new MM.BingProvider(bing_key, style, function(provider) {
map_layer.setProvider(provider);
});
} else if (layerNum == '2') {
var style = 'BirdseyeWithLabels';
provider = new MM.BingProvider(bing_key, style, function(provider) {
map_layer.setProvider(provider);
});
} else if (layerNum == '3') {
var style = 'Road';
provider = new MM.BingProvider(bing_key, style, function(provider) {
map_layer.setProvider(provider);
});
} else if (layerNum == '4') {
provider = new MM.BlueMarbleProvider();
map_layer.setProvider(provider);
}
}
```
--------------------------------
### Update Telemetry Display
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
Updates the HTML elements displaying telemetry data like latitude, longitude, altitude, ground speed, air speed, and heading. Also calculates and displays frames per second (FPS).
```javascript
function updateTelemetryDisplay() {
$("#t_lat").html(state.lat);
$("#t_lon").html(state.lon);
$("#t_alt").html(state.alt.toPrecision(4));
$("#t_gspd").html(state.groundspeed.toPrecision(3));
$("#t_aspd").html(state.airspeed.toPrecision(3));
$("#t_hdg").html(state.heading)
now = new Date().getTime();
$("#t_fps").html((1000.0 / (now - last_state_update_time)).toPrecision(3));
rotate_drone(state.heading)
trail_plotter.update();
marker_clip.setMarkerLocation(0, new MM.Location(state.lat, state.lon));
}
```
--------------------------------
### Telemetry Link Status Update
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
Updates the HTML element for the telemetry link status based on the time since the last state update. Displays 'ERROR', 'SLOW', or 'OK'.
```javascript
var now = (new Date()).getTime();
if (now - last_state_update_time > 5000) {
$("#t_link").html('ERROR');
} else if (now - last_state_update_time > 1000) {
$("#t_link").html('SLOW');
} else {
$("#t_link").html('OK');
}
```
--------------------------------
### Rotate Drone Icon
Source: https://github.com/ardupilot/mavproxy/blob/master/MAVProxy/modules/mavproxy_mmap/mmap_app/index.html
Rotates the drone icon on the map based on the provided heading in degrees. Applies the transform style for various browser prefixes.
```javascript
function rotate_drone(deg){
var rotate = "rotate(" + (deg) + "deg);";
var tr = new Array(
"transform:" + rotate,
"-moz-transform:" + rotate,
"-webkit-transform:" + rotate,
"-ms-transform:" + rotate,
"-o-transform:" + rotate
);
var drone = document.getElementById("drone");
drone.setAttribute("style", tr.join(";"));
}
```
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