You can display the temperature of a Raspberry Pi by using the following command: /opt/vc/bin/vcgencmd measure_temp  

Configuring The GPIO Serial Port On Raspbian Jessie Including Pi 3 This used to be relatively straightforward, but with move from Raspbian Wheezy to Raspbian Jessie, things changed. Add to this, the new Raspberry Pi 3 with new hardware and the whole thing became a bit of a Dog’s Breakfast and issues with the Bluetooth.

When using dmesg you may see the following error: “smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped” To fix this add the following code: smsc95xx.turbo_mode=N in /boot/cmdline.txt This has been reported to help also: vm.min_free_kbytes = 32768 in /etc/sysctl.conf