Our connected devices usually have two connections: One for data and the other for power. If we use an Ethernet cable, we can combine data and power on the same cable. Very convenient. Do you know how this "Power over Ethernet" or PoE works and what we have to do to take advantage? Let's have a closer look.

Links:
Wall injector: http://s.click.aliexpress.com/e/cDqM7dUU
Long injector: http://s.click.aliexpress.com/e/bEVSo9u4
Small injector: http://bit.ly/2L4o057
PoE hat large: http://s.click.aliexpress.com/e/cEa27HTa
PoE hat small: http://s.click.aliexpress.com/e/nAdbd1m
Ethernet Tester: http://s.click.aliexpress.com/e/SQilKsY
PoE Router: https://mikrotik.com/product/crs112_8...
PoE Access Point: https://mikrotik.com/product/cap_ac

PoE Details: http://www.bb-elec.com/Learning-Cente...

Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot

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