Hey all
Im working on a project for school, building a quad copter. And i have some questions about the best wireless options.
At first we were looking at these: http://www.banggood.com/433Mhz-RF-Transmitter-With-Receiver-Kit-For-Arduino-ARM-MCU-Wireless-p-74102.html
But we want to have the communication 2-way. We do want to keep it simple and cheap. 20$ MAX, for the communication. I also found these online: 2.4GHz Transceiver w/ Power Amp
And was wondering if they are 2-way?
Or if there are any other Wireless RF transmitters/receivers out there?
Any help would be greatly appreciated 
Thanks
Rinke