I am trying to set up a Garmin Lidar Lite powered by an Arduino Uno with an Ethernet shield. I currently have it working with a WiFi shield, but am wondering if I can power the lidar and Arduino through the Ethernet cable? I want the Ethernet shield due to interference with WiFi, and as a way to get power to the unit. What is the best shield to use for this application? Thanks.
Hi!
There exists a thing called “Power-Over-ethernet” which ressembles what you are talking about.
With the following 2 modules you should be able to output 10V at 1Amp:
-https://www.robotshop.com/ca/en/power-over-ethernet-regulator.html
-https://www.robotshop.com/ca/en/etherten-ethernet-arduino-compatible-microcontroller.html
It requires an input voltage range of 36v to 57v to work.
Unfortunately, you will also require a commercial Power-Over-Ethernet switch or injector that we currently do not have in our catalog.
I recommend that you run a power cable along your ethernet cable instead as it will cause you a lot less trouble.
The https://www.robotshop.com/ca/en/w5100-ethernet-shield.html will work perfectly in this case.
Feel free to ask any other question!
Cheers!