Want to do mission planning or setup with Tower on Android or MAVPilot on iOS without the hassle of janky cables? What you need is a direct Wifi connection to your drone. The new Pixhawk/APM-compatible Wifi radio from HobbyKing is perfect for this, and just $19.97.  I almost exclusively use mobile apps and wifi now -- 400m range is fine for setup, planning and telemetry. Leave that laptop and those cables at home!

Tired of having to program your APM / Pixhawk system by wire? The APM / Pixhawk Wireless Wifi Radio Module is the perfect solution! This simple yet effective module replaces the 3DR data transmission module and frees you from the limitation of a USB cable. The system is suitable for all flight controllers with TTL interface.

The Wifi Radio module is supplied with both Pixhawk and APM compatible wire harnesses for quick and easy setup. 

• Wireless functionality for Pixhawk and APM
• Compact and lightweight system supplied with Pixhawk and APM wire harnesses
• Replaces the 3DR data transmission system module
• Supplied with Pixhawk and APM wire harnesses

Transmission Rate: 11n:MAX150Mbps;11g:MAX54Mbps;11b;MAX11Mbps
Channels: 1~14
Frequency Range: 2.4 ~ 2.4835 Ghz
Transmitting Power: 14 ~ 18 DBM
Interface: Serial port, GPIO
Transmitting Range: 300 ~ 800 meter
Working Temperature: -20 ~ +70 degrees
Storage Temperature: -40 ~ +80 degrees
Bandwidth: 20MHz/40MHz/Auto Optional

Views: 17574

Comment by Lisa Wright on November 5, 2015 at 4:53am

@Rana Thank you for the comments on the ESP8266, just ordered a couple. 

Comment by Rana on November 5, 2015 at 10:22am

Hi Artem, Patrick & Lisa !

ESP-07 ESP8266 is +25dBm, it is printed onto it. With 14dBi patch antenna, I got more than 5km range while the plane was at 300mt altitude. I have several of them and its just great as said by Patrick as well.


Infact in one of the module I used 2W Wi-Fi amplifier, and could not test the end of the range as I had no battery endurance of my plane to test the maximum range. 


Comment by Rana on November 5, 2015 at 10:25am

14dBi patch antenna was at ground and 5dBi regular antenna on the plane side. I was using a similar booster amplifier on the wifi router at the ground. 

Comment by HackInvent on November 5, 2015 at 10:49am

With few hacking it can be used for HD streaming

Comment by Rana on November 5, 2015 at 11:51am

For streaming HD video, this is not the one.

Comment by Wyatt Earp on November 5, 2015 at 1:47pm

ok so it replaces the telemetry.. now all you do is have to buy a wifi booster for your phone?

and will it stream video from the copter from any camera to wifi though an app.. thats what we want is a free app... and have wifi stream live video from the copter without a reciever for those who dont want to buy all that junk

Comment by Rana on November 5, 2015 at 6:05pm

Wyatt, at the phone side let there be a Wi-Fi router with booster kept nearby rather than looking for Wi-Fi booster for the phone. There are amplified Wi-Fi router already available that can also be used.

For the second part of the question, would say no.

Comment by Wilhelm Matilainen on November 6, 2015 at 1:03pm

This is already possible with ESP8266 using JeeLabs esp-link to create a wifi-serial bridge.

Comment by Jean-Luc on January 17, 2016 at 9:00am
Hello everyone.
@ Rana, thank you for the link but is this module the same or as the one show below.

I'm new here and a newbie in UAV. I just bought an APM, and the 433mhz sistem and just after ordering discovered this Wifi module.
I heard that it can produce interferences with the 2.4ghz remote control?
If yes How can we avoid that ?

I think that a lot of people would like to also transfer images from the Wifi.
1) is it possible ?
2) would it work with the Apps ? (Tower / MavPilot).

I saw very cheap FPV wifi camera, and they come with Apps,
So instead of using an heavy video transmission system i also thought about buying one of those using a better wifi transmission. (Or amplifying the transmission or reception)
This camera are coming from quad copter toys like the Syma Xx and Walkera, MJX C4010 or C4008. And at least you can see where you go even if the quality is average. I don't know about the delay.

In conclusion is it possible to send telemetry data and video using the Wifi module ?
Or would it be possible to combine it with one of this cam. Using one device. (At least it will work with an iPhone a cheap Android tablet.
And how to prenvent interferences between 2.4ghz remote controler and 2.4ghz WiFi.

PS :Understand that as a none native English some of my sentences or expression might sound weird, thanks and happy flight
Comment by Bill Salopek on February 1, 2016 at 3:11pm

I have some of the same questions:

1)  In what ways is this wifi gizmo better (and worse) than 915mhz telemetry?

2)  I thought it was quite dangerous to use a 2.4ghz wifi radio while flying with a 2.4ghz RC radio...some Phantoms have been said to have crashed when folks tried to view wifi video from their GoPro's and other wifi-equipped cameras while flying the Phantom with a 2.4ghz controller.





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