# Hardware

We have several different devices.

## CN Basic
[../Hardware/CaveNodeBasic.md]
This is the basic node, it's designed ground up for cave use. It's small, light, durable, and fully waterproof.
It contains a magnetic switch to allow it to be turned off in the case.

## CN GPS
[../Hardware/CaveNodeBasic.md]
This is the Basic Node, but with an inbuilt GPS.

## CN Logger
[../Hardware/CaveNodeLogger.md]
This is a specialised unit to log all network traffic to an SD card.

## CN Wired Link
[../Hardware/CaveNodeRS485.md]

This is a specialised unit. A pair of these can be used to drive a wire through up to 80m (tested) of dual core wiring. This is useful in tight, narrow and winding pasasges.

## CN
This is a full fledged linux PC, it runs the web interface for surface control, and will chew batteries.

## Commercial devices
There are a number of commercial devices.
In short, I'm not impressed with them for our use, they suffer from a variety of issues, from short battery life, inadequate durability, and no waterproofing.

On top of that, our nodes include battery protection, and extra LEDs to make setup without a device quicker and easier, and to ensure that the network remains up.

### Seeed T1000E
This is mostly waterproof, nice and small.
With a dab of silicone in the buzzer, it's probably pretty close to IP67.
It has a GPS on board,

The issue is the battery life. As it's a small device, it's got about a 36 hour battery life.

### Seeed Wio Tracker Pro
This has a nifty control system, but is not even close to waterproof, and the screen makes it pretty power hungry.

### Heltec V3 
Not waterproof - very power hungry. 

### Heltec T114 
Not waterproof, otherwise pretty good on a 103040 battery or equivalent.

### MuziWorks R1 Neo
Supposedly waterproof - battery untested.
I suspect it's waterproof in that it'll pass the test, not so much that it'll hold up to long term use.