How to send data to FlyController

Hey,

I wonder how I can send information to quadrocopter from my Arduino UNO.
I'm making a antycolison system where I use sensor and decide when i must to fly away

I heared about UART and Servo.h to send a data.

Can i use only Arduino UNO (by UART) to send this data to drone? Or I need extra module?
And what i need to use from Servo.h to send this. It is hard to do it?

God bless you for any hint..

I heared about UART and Servo.h to send a data.

The Servo library sends data from an Arduino to a servo. Hardly useful for what you want to do.

A UART is a means of getting serial data into an Arduino. The Uno and other Arduinos all have a UART.

But, if you are standing on the ground, holding the Arduino, you'll have to have a really long, and heavy, serial cable to send data to the flying thing. That cable is likely to get tangled up in trees, too.

Or I need extra module?

Most people prefer to have some kind of wireless module on each end.

And what i need to use from Servo.h to send this.

Nothing. You won't be sending data from a servo.

It is hard to do it?

Nope. 12 year old boys are able to do it. Oh, wait. Maybe you had something else in mind.

Soo what I shoud use to send PPM to RC (which pass it to FlyCotnroller who encode this to servo)?

I put Arduino on drone and communicate via usb to PC. I't looks funny but i don't need wireless at the moment.

Soo what I shoud use to send PPM to RC

What RC are you talking about? Are you using a radio with joysticks and trim controls to fly the drone?

What is the Arduino supposed to do with the PPM data?

I do not understand the relationship between PPM data, an RC, the drone, the Arduino, and an anti-collision system. A block diagram is certainly in order.

I have this receiver: link

I wonna send to receiver signal from arduino to change position of drone.

I use ultrasonic sensor to examine distance between drone and obsctacle.

My teacher gave this source to study about this: link

This is what i talking about:
RC Hobby Controllers and Arduino

but i dont wonna use my pwm to connect to RC, i wonna use UART to send signal to RC.
My 2-13 PWM are busy by distance sensor

@edit

ohh i see now that Uart is not 2.4ghz comunication. It is serial.. Hmm so I must use a some sender 2.4Ghz, right? :slight_smile: It is Wi-Fi frequency. Can i use wi-fi module for that?