sender.construct_packet*: use ','.join()
sender.construct_packet*: use ','.join()

bearing/dosenet-raspberrypi,yarocoder/dosenet-raspberrypi,tybtab/dosenet-raspberrypi,yarocoder/dosenet-raspberrypi,cllamb0/dosenet-raspberrypi,tybtab/dosenet-raspberrypi,cllamb0/dosenet-raspberrypi,bearing/dosenet-raspberrypi