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2014-12-09 11:00:44 -0500 | asked a question | Rosserial_arduino: Ok with Float32MultiArray, not with Int32MultiArray Hello, I am new to both Arduino and ROS. I have connected 3 IR detectors (E18-D50NK) to my Arduino Mega 2560. I am using ROS-Indigo, standard installation on ubuntu Here is the sketch I have uploaded: As such, everything work: my rostopic terminal prints this every second if the sensors detects nothing: However, when I replace Float32MultiArray by Int32MultiArray (to save memory), there's the following bug: rostopic always prints "0" for the first sensor. Thank you in advance for your advices, Best regards, Marc |