Hi, bresch, thanks for your reply. I will test this.
In fact, why i use 1.7.3 is because I was not able to make a simple mixer work in the 1.8.2 and also the mocap/pose was not able to “guide” the drone. That is why I switch back to 1.7.3.
I followed the steps Modifying mixer file without reflashing
my mixer file
M: 1
O: 10000 10000 0 -10000 10000
S: 0 0 10000 10000 0 -10000 10000
M: 1
O: 10000 10000 0 -10000 10000
S: 0 1 10000 10000 0 -10000 10000
M: 1
O: 10000 10000 0 -10000 10000
S: 0 2 10000 10000 0 -10000 10000
M: 1
O: 10000 10000 0 -10000 10000
S: 0 3 10000 10000 0 -10000 10000