receiver and transmittere circut

hi every body ., is there any one can help me i want to get the circut schematics and images for the electronic parts to the R/C airplane or Helicopter
really i need it ., i have see some one made at home the circut of receiver and transmitter for a Car toy on the youtube ., so please is there any one can
send it for me in detials on my e-mail (################## ) and i will be very gratefull for him or her ., .........

by the way i have a rean mote control helicopter and i like to know the principle of working to circut board and how i can made it at home ....


thanks....

Hi and welcome to EDABoard,

See this link:

https://sites.google.com/site/mrdunk...ystem-hardware

I suggest to skip DIY if you are beginner, RF modules requires knowledge, skills and testing if you whant to have good performance and capabilities.

Todays you can buy very cheap modules 10-15eur. 500mW up to 256kbps....

I cant post links to commercial modules, but you can use Internet search engine.



Best regards,
Peter

I tried to make my own receiver after I lost my R/C plane. (Its battery got depleted, it stopped obeying commands, and the wind carried it out of sight.)

I got as far as constructing a circuit which could detect the rf transmitter's carrier, amplify the signal, and split up the command pulses. I was able to operate individual servos.

However the receiver was not sensitive enough to pick up a signal further than a few feet distance.

I realized I would need to add more stages of rf amplification, with tuned coils and so forth.

It was a task beyond my realm of knowledge. I suspected my homebrew receiver would end up being large and bulky. So I stopped working on it.

In the other hand airplane loss is not complete loss, someone else is now playing with him.

Maybe some auto pilot/auto base return option is good for situation when user lost control over plane model, when plane return near starting point user return control over plane.



Best regards,
Peter

HI Mr. Peter


thanks for your comments and for the others., but my question is what is the steps of building the circut of receiver and transmitter .,

HOW i can made it at home with negligable of cost ., really i want these information and i ask you and every one to help me and prefer the answer be with images and step by step.

and can send it on my e mail (##################### )

thanks again ...... for any HELP .......

Did you make some PCB before SMD/THT and with what method ?



Best regards,
Peter

you cant unless you are VERY experienced with RF electronics construction and the cost WONT be negligable. it will be much cheaper and easier to buy working transmitter and receiver modules from a hobby shop.
Start googling for sales of R/C modules

Dave

Sorry, if you need it in a step by step way including explanation then I advise you to just forget it.

Even experienced builders will have a lot of troubles to build a RC helicopter control.
You must be able to make mulilayrt pcbs, work with smd and have things like network and spectrum analysers and a very giood LCR meter. Besides thait, it is not allowed to use home build RC teramsmitters. A helicopter that loses control is very dangerous.