This instruction will show you how to configure single or multiple AR-Drone 2.0s to connect to a managed wifi network (e.g. a wifi router) without breaking the default ad-hoc network connection. Please be advised that this instruction is for advanced users with high technical skills. Changing anything on your AR-Drone may void its warranty. You may damage your AR-Drone firmware(software) or hardware permanently if making mistakes. No warranty or guarantee is provided for this instruction; you follow them at your own risk. If you are at all uncomfortable or inexperienced please reconsider doing the job yourself. Configure your wireless router to create a managed wifi network without security (e.g. dronenet). In my experiments I was not able to make drones connect to WEP/WPA secured networks. This might be because of either a bug in firmware or in my connection script. Configure the router to have the IP address of 192.168.1.1 on subnet 255.255.255.0. Configure the router's DHCP server to give clients IP addresses starting from 192.168.1.100, we will reserve smalled IP addresses for drones.

In this step we create a file called wifi.sh on the drone which will make the drone connect to pre-defined wifi network whenever triggered. parrot ar - drone 2 bleuThe steps are as follows:ar drone parrot romania Connect to your AR-Drone's ad-hoc wifi networkstorm drone 4 kopen Hint if you are not familiar with vi: Press i in vi to go to insert mode, paste the code by pressing shift-ctrl-v, press ESC to exit insert mode. ar drone 2 hull templateType :wq to write and quit.parrot ar drone uae While Steps 1 & 2 should only be done once, this step should be executed whenever you want to make the Drone connect to your wireless network (for example everytime you turn the drone on).ar drone parrot kaufen

Connect to your drone's ad-hoc wireless network Connect your PC to the hidden wireless network Test the connection to the drone by pinging its IP address ardrone_autonomy driver accepts a command line argument named -ip to connect to a drone configure with an IP address other than default 192.168.1.1.Enabling infrastructure wifi on the ARDrone with DHCP There are a number of different articles on “patching” the AR Drone to connect to infrastructure. I’m going to talk a little about the technical details of what is going on, based on my own experience. The ARDrone, in its stock configuration, is an embedded linux device that runs Busybox. By default, on boot it starts an ad-hoc wiki network of the form ardrone_xxxxxx, where the last bit is the ID of the drone. When you connect to the ad-hoc network, the drone can assign an IP address from the 192.168.1.xxx range, where 192.168.1.1 is reserved for the drone itself. At this point, the drone is accessible over the network via telnet, simply use:

If you use ifconfig, you can see the wifi device ath0. I believe the drone simply uses mostly stock atheros wifi drivers. Now, on boot, the drone executes the initialiation script /bin/wifi_setup.sh. You can look inside and actually see the drone configure its wireless and startup the DHCP server. Connecting to infrastructure wifi So if we want to connect to an infrastructure access point, we have a couple of key steps: Shut down the DHCP server. Bring down the ath0 interface Bring up the ath0 interface in managed mode, connecting to SSID of choice Run DHCP client to get IP address The first 3 steps of this are well described in a lot of other posts like this one at Shellware, so lets talk about the DHCP client. Busybox includes a DHCP client called udhcpc. Running it is simple, and by default it will get an IP address and netmask: udhcpc -b -i ath0 So now, the process of starting up the wifi is to do the following block: iwconfig ath0 mode managed essid $INFRA_ESSID ap any channel auto commit

If we want to start up ad-hoc networking again, we can do: iwconfig ath0 mode Ad-Hoc essid $DRONE_SSID channel auto commit ifconfig ath0 192.168.1.1 netmask 255.255.255.0 up At this point, we can make scripts to manually switch between an infrastructure network and an ad-hoc network. As long as we don't run anything at boot, the drone will always safely reboot into ad-hoc mode. Automatically connecting to infrastructure wifi So I found an existing tool that autoloads a startup script for connecting to infrastructure APs called ARAutoConnect. It was open source, so I extracted the underlying script, which runs a loop that scans every 10s for the SSID network and connects to it, and added DHCP support. The resulting script, which can be downloaded here (autoconnect.sh), runs the same loop, but also tries to get a DHCP lease. To use the script, simply put it in some directory. Now, create a file in the same directory called essid, and put the name of the network in it.

If you run the script directly, it will now search for the specified wifi network, and if it finds one, it will close the ad-hoc network and connect to the infrastructure network instead. If you want this to run at startup, simply append a line to /bin/wifi_setup.sh that goes something like: Be warned however, if an infrastructure network is available but the drone can't complete a connection to it, it will keep trying, possibly locking any ad-hoc connections out until you move the drone out of range. Anyway, it's all free for anyone to use/adapt as they wish. Fixing linking errors caused by MacPorts’ incompatible binaries Enabling infrastructure wifi on the ARDrone with DHCP Fixing an SQLite version mismatch between Subversion and PHP5 Making a cheap electrical wire caddyAn implementation of the networking protocols used by the Parrot AR Drone 2.0. It appears that 1.0 drones are also compatible. Install via Github to get the latest version: Or, if you're fine with missing some cutting edge stuff, go for npm:

The AR Drone is an affordable, yet surprisingly capable quadcopter. itself runs a proprietary firmware that can be controlled via WiFi using the official (available for iOS and Android). Unlike the firmware, the client protocol is open, and Parrot publishes an SDK (signup required to download) including a good amount of documentation and CTheir target audience seems to be mobile developers who can use this SDK to create games and other apps for people to have more fun with their drones. However, the protocol can also be used to receive video and sensor data, enabling developers to write autonomous programs for the upcoming robot revolution. This module is still under heavy development, so please don't be suprised if you find some functionality missing or undocumented. However, the documented parts are tested and should work well for most parts. This module exposes a high level Client API that tries to support all drone features, while making them easy to use.

The best way to get started is to create a repl.js file like this: Using this REPL, you should be able to have some fun: Now you could write an autonomous program that does the same: Ok, but what if you want to make your drone to interact with something? you could start by looking at the sensor data: Not all of this is handled by the Client library yet, but you should at the very least be able to receive droneState and demo data. A good initial challenge might be to try flying to a certain altitude based on the navdata.demo.altitudeMeters property. Once you have manged this, you may want to try looking at the camera image. is a simple way to get this as PngBuffers (requires a recent ffmpeg version to be found in your $PATH): Your first challenge might be to expose these png images as a node http webOnce you have done that, you should try feeding them into the Returns a new Client object. Launches an interactive interface with all client methods available in the

Additionally client resolves to the client instance itself. Returns a PngEncoder object that emits individual png image buffers as 'data'Multiple calls to this method returns the same object. (e.g. reconnect on error) is managed by the client. Returns a TcpVideoStream object that emits raw tcp packets as 'data' Sets the internal fly state to true, callback is invoked after the drone reports that it is hovering. Sets the internal fly state to false, callback is invoked after the drone reports it has landed. Makes the drone gain or reduce altitude. speed can be a value from 0 to 1. Causes the drone to spin. Controls the pitch, which a horizontal movement using the camera as a reference point. Controls the roll, which is a horizontal movement using the camera Sets all drone movement commands to 0, making it effectively hover in place. Asks the drone to calibrate a device. supports only one device that can be calibrated: the magnetometer,

which is device number 0. The magnetometer can only be calibrated while the drone is flying, and the calibration routine causes the drone to yaw in place a full 360 Sends a config command to the drone. You will need to download the drone SDK to find a full list of commands in the ARDrone_Developer_Guide.pdf. For example, this command can be used to instruct the drone to send all navdata. callback is invoked after the drone acknowledges the config request or if a timeout occurs. Alternatively, you can pass an options object containing the following: Performs a pre-programmed flight sequence for a given duration (in ms). animation can be one of the following: Please note that the drone will need a good amount of altitude and headroom to perform a flip. Performs a pre-programmed led sequence at given hz frequency and durationanimation can be one of the following: Causes the emergency REF bit to be set to 1 untilThis recovers a drone that has

flipped over and is showing red lights to be flyable again and show greenIt is also done implicitly when creating a new high level client. A client will emit landed, hovering, flying, landing, batteryChange, and altitudeChange events as long as demo navdata is enabled. To enable demo navdata use This is a low level API. If you prefer something simpler, check out the Client The drone is controlled by sending UDP packets on port 5556. does not guarantee message ordering or delivery, clients must repeatedly send their instructions and include an incrementing sequence number with each For example, the command used for takeoff/landing (REF), with a sequence number of 1, and a parameter of 512 (takeoff) looks like this: To ease the creation and sending of these packets, this module exposes an UdpControl class handling this task. For example, the following program will cause your drone to takeoff and hover in place. Now that you are airborne, you can fly around by passing an argument to the