Contents
Antennas
DIY ground plane antenna
Here’s the DIY ground plane antenna from Chavdar Pechev
A DIY ground plane antenna (France)
User ‘salience’ from rcgroups made a ground plane antenna with extremely good performances (SWR<1.1). The antenna is a combination of the one from this article, and includes a balun described here.
Yak-54’s 3 elements DIY Yagi
Moxon antenna for Ultimate LRS
Rcgroups user Beemond made a very nice Moxon antenna, check this post for the full description.
3D printed
3D-printed case for ULRS
Rcgroups user ‘analogman’ provided this nice-looking black 3D-printed case for ULRS, APM, (large) BEC and filtering capacitor : 
Beemond’s 3D-printed case for ULRS
Rcgroups user Beemond designed a nice-looking 3D printed case which can be downloaded here.
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3D Printed case for 100mW module
Rcgroups user stundenblume has made these nice Ultimate LRS 3D printed cases :
https://github.com/stundenblume/ULRScase/blob/master/ULRS_100mW_case.stl
https://github.com/stundenblume/ULRScase/blob/master/ULRS_100mW_caseV3.stl
https://github.com/stundenblume/ULRScase/blob/master/ULRS_100mW_caseV5.stl
https://github.com/stundenblume/ULRScase/blob/master/ULRS_100mW_caseV6.stl
Another 3D-printed case for ULRS
Have a look at this blue 3D printed case for ULRS, which can also receive a bluetooth module. The model can be downloaded on Thingiverse here. 
And another 3D-printed case for ULRS
A 3D printed case for ULRS proposed by Oscar Bertrand, and available on Thingiverse here.
Other projects
Home made RC transmitter
Rcgroups user babak_ea created an home made RC transmitter based on Ultimate LRS.
It use an Atmega micro controller and read 6 ADC that connect to potentiometers for channels of 1,2,3,4,6,7 and ch8 use simple switch for digital input.
For mode selecting at channel 5, I prefer to use 6 Momentary switches for different modes, so when press any of 6 switches new mode is selectable, of course in my previous version, I used 2 switches (2 and 3 state) for 6 modes.This program get 3 times sample for each potentiometer, then use average value and for digital input simple reading pin is used, then sends all values as ppm signal to specified ppm output at timer interrupt, each 20 ms.
It also uses one of ADC channel for reading battery voltage and 3 levels are defined for different blinking the battery Alarm Led.
Because different models of potentiometer have a little different behavior, it needs at first to calibrate each potentiometer that give the best range in 1000 to 2000.
In this version the “exp” or “end point” for sticks is not defined and I think that for Arducopter it’s no needed.
I used this program about 2 years with your ULRS versions 1.06 and 2.xx and hadn’t any problem .
Integrating an APM inside the OrangeRX case
User WinerS did something apparently impossible, integrating an APM board inside an OrangeRX case !
Antenna tracker
Rcgroups user ‘xfly’ is working on an antenna tracker that can work with Ultimate LRS : 
Rcgroups user ‘gregd72002‘ describes in this post how to connect ULRS with a bluetooth joypad through a Raspberry pi :
