Add stuff for power monitoring and post on freebsd routers
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date = "2018-03-07T22:35:34-05:00"
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title = "Building a FreeBSD router"
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menu = "main"
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Categories = ["Administration","Homelab","DIY"]
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Tags = ["freebsd","homelab","router"]
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Description = "Replace pfSense with an Ansible-managed router"
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type = "post"
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weight = 1
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draft = true
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+++
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# Building a FreeBSD router
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## Assemble the hardware
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The project started with two unused C6100 nodes, which had recently been replaced with upgraded models. I pulled out the second CPU, gave them each 4GB of RAM, and attached each of them to a standard power supply.
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@ -199,6 +199,12 @@ y. Install each circuit's voltage sensor between the hot and neutral leads, bein
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## Part 3.9 - The Mux shield
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![MuxShield](/images/pdu/mux_shield.png)
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The Mayhew Labs MuxShield provides an additional 48 analog I/O inputs for an Arduino. In this case, I use it to allow all the individual sensors to be read independently, including the voltage sensors.
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1. Connect each lead cable to one of the Analog inputs on the MuxShield.
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# Part 4 - The Software
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## Part 4.1 - The Arduino
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