This is the output I get on the receiver, starting the IMU1, then the IMU2 and then the IMU3 (is not even sending the data, this I can see it because the led is not blinking)
The last value is an indicator to know which IMU data is being printed 1 (IMU1), 2 (IMU2) and 3(IMU3)
Time(s), yaw(º), pitch(º), roll(º), az(g), ay(g), ax(g), TIME, Hz
29.21,36.7,-44.4,-109.2,39.70,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.23,36.8,-44.4,-109.2,41.34,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.26,36.8,-44.4,-109.2,41.37,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.28,36.8,-44.4,-109.2,41.35,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.31,36.8,-44.4,-109.2,41.33,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.34,36.9,-44.4,-109.2,39.70,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.36,36.9,-44.4,-109.2,41.34,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.39,36.9,-44.4,-109.1,41.35,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.41,36.9,-44.4,-109.1,41.35,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.44,36.9,-44.4,-109.1,41.39,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.47,37.0,-44.4,-109.2,39.72,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.49,37.0,-44.4,-109.2,41.37,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.52,37.0,-44.4,-109.2,41.34,1.00 ,0.0,0.0,0.0,0.00,0.00,0.0,0.0,0.0,0.00,0.00 1
29.54,37.0,-44.4,-109.2,41.34,1.00 ,26.6,-48.2,-114.7,0.41,2.00,0.0,0.0,0.0,0.00,0.00 2
29.54,37.1,-44.4,-109.3,41.37,1.00 ,26.6,-48.2,-114.7,0.41,2.00,0.0,0.0,0.0,0.00,0.00 1
29.56,37.1,-44.4,-109.3,41.37,1.00 ,25.0,-47.8,-112.3,42.35,2.00,0.0,0.0,0.0,0.00,0.00 2
29.57,37.1,-44.4,-109.3,41.35,1.00 ,25.0,-47.8,-112.3,42.35,2.00,0.0,0.0,0.0,0.00,0.00 1
29.59,37.1,-44.4,-109.3,41.35,1.00 ,23.5,-47.4,-110.0,41.41,2.00,0.0,0.0,0.0,0.00,0.00 2
29.60,37.1,-44.4,-109.3,39.69,1.00 ,23.5,-47.4,-110.0,41.41,2.00,0.0,0.0,0.0,0.00,0.00 1
29.60,37.1,-44.4,-109.3,39.69,1.00 ,21.9,-46.9,-107.7,41.41,2.00,0.0,0.0,0.0,0.00,0.00 2
29.63,37.1,-44.4,-109.3,41.37,1.00 ,21.9,-46.9,-107.7,41.41,2.00,0.0,0.0,0.0,0.00,0.00 1
29.63,37.1,-44.4,-109.3,41.37,1.00 ,20.5,-46.3,-105.5,41.43,2.00,0.0,0.0,0.0,0.00,0.00 2
29.66,37.2,-44.4,-109.3,41.37,1.00 ,20.5,-46.3,-105.5,41.43,2.00,0.0,0.0,0.0,0.00,0.00 1
29.66,37.2,-44.4,-109.3,41.37,1.00 ,19.2,-45.7,-103.4,39.76,2.00,0.0,0.0,0.0,0.00,0.00 2
29.69,37.2,-44.3,-109.2,41.36,1.00 ,19.2,-45.7,-103.4,39.76,2.00,0.0,0.0,0.0,0.00,0.00 1
29.69,37.2,-44.3,-109.2,41.36,1.00 ,18.2,-45.2,-101.7,41.37,2.00,0.0,0.0,0.0,0.00,0.00 2
29.72,37.2,-44.4,-109.2,39.71,1.00 ,18.2,-45.2,-101.7,41.37,2.00,0.0,0.0,0.0,0.00,0.00 1
29.72,37.2,-44.4,-109.2,39.71,1.00 ,17.4,-44.8,-100.4,41.40,2.00,0.0,0.0,0.0,0.00,0.00 2
29.75,37.2,-44.4,-109.2,41.41,1.00 ,17.4,-44.8,-100.4,41.40,2.00,0.0,0.0,0.0,0.00,0.00 1
Whandall:
I showed my code that works.You complain "it does not work" without showing the actual current codes and their output.
All I can say given that, you probably have an error in your code.
I tried to execute your code but it does not recognise printf_begin()