I have 3 asset trackers, all with the same software. 1 asset tracker is about a year old, and the GPS and accelerometer work fine. I have 2 newer asset trackers, and the accelerometer only works sporadically in each, and seems to be a function of whether the GPS is turned on via pin 6. It seems as if the GPS is on, the accelerometer will not work. But not 100% sure on this yet.
I have ruled out software. Is anyone aware of any recent (1 year+) hardware changes with the asset tracker shield? The GPS seems to get a lock better than before, but the accelerometer fails to init and read…sometimes.