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In this lesson we will be sending commands to fly the drones in different directions.

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We'll be using commands such as Up down left right forward and backwards looking at the API.

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You'll find some X's after the command.

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These X's can be set with numbers from 20 to 500 which will be the length in centimeters.

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This is based on SDK 2.0.

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So maybe in the near future there may be changes in the numbers depending on the drone version.

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Please revise your numbers in case there are any changes in the SDK for some of you.

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You may not be familiar with centimeters in our code.

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We will set the drone to measurements and feats also just to give you an idea and measurements one feat

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is thirty point four eight centimeters.

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Now let's get started with our codes first.

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Let's start by setting a default value default distance will be set to zero point three zero.

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For those of you who are familiar with centimeters.

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This means 30 centimetres.

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If I change to 4 0 to a 1 that will mean one meter and 30 centimetres.

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I do want to warn you if you are thinking of changing this value you will be flying your drone inside

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so you don't want to set the default to a big number.

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For those of you who wish to use the centimeter metric you should add a code to the initial settings

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you will set is imperial false.

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Also we need to set the length as an argument.

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We will need to set self is imperial.

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Now scroll down.

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Let's add this after land.

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Define a method named move and set the first argument as direction in this direction argument will be

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set to change to command names such as up or left the direction will be followed by distance.

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If the distance is set to 30 centimetres the argument will be placed with zero point three zero for

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the distance will set it as a float.

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If the distance is imperial meaning it's set to FT metrics we need to rounded and multiply by thirty

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eight point four eight.

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If the distance is not imperial that will mean it set to centimeter metrics.

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So we need to rounded up and multiply by hundred.

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Now we will return self then command here we will be using f strings in the parentheses we set f followed

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by a curly braces with the direction and another curly braces.

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With distance Next we need to set the directions in the move method.

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Let's take up as an example def up and we set the distance of the default distance we set to return

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to self move with the command up and the distance once we make this object we can set the drone manager

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up with the distance of 30 centimeters then self move will be returned with the up command and the distance

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as zero point three.

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These numbers will be set to the move method arguments.

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The distance will be calculated as float.

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If the distance is set to fit metrics we will need to change the number and centimeters by multiplying

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with thirty point four eight

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if the distance is set to centimeter metrics.

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It will be multiplied by a hundred as we are using round.

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The number will be round off and set as an integer.

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Then the process will return.

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Self command as this is at f string direction will be set up and distance will be set to 30.

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If you're not familiar with F strings I'll rewrite this in a format style with curly braces 0 come a

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one point format

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parenthesis direction and distance.

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For those of you who are familiar with Python 2 we used to use them.

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Percentage marks like this.

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All three codes mean the same thing.

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F string started from Python three point six so I'll be using the first code style.

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Feel free to use what you are familiar with.

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We've completed the up method.

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The rest will be very easy.

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Copy the up method and paste 5 times

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we need to set down.

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Remember to change the command name also.

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Then left and left right and right.

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Forward and forward back and back.

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We've completed all the methods.

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Let's prepare to fly the drone.

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The drone will take off and sleep for 10 seconds.

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Let's use the drone.

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Manage your forward method to move forward.

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The default is set to 30 centimetres.

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Make sure you have plenty of room and not set the numbers too high.

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Now let's sleep for another 5 seconds.

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Next fly to the right.

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Then we fly back

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flied to the left and go up last.

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We go down and land.

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We're all set so let's run this code.

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Here you see the drone received the takeoff command.

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Here we are waiting for the 10 seconds.

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Now it flies forward for 30 centimetres hovers for five seconds.

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Then it flies right hovers five seconds again not flies back and hovers.

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Five seconds

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then it flies left and hovers five seconds.

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Next we go up

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and down and now the drone lands.

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I hope you were able to fly your drone and all the different directions.

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I'll be looking forward to seeing you in our next lesson.