The WORKBENCH part 3

Hi again @BoRRoZ, I should have added that if you are installing an ethernet copper cable from indoors to equipment with an antenna outdoors on the roof then you really need to include an ethernet lightning arrestor. See the picture below for an example. The arrestor needs to go indoors and be grounded into your building’s electrical safety ground. Otherwise you risk an electric storm frying your router, other stuff and yourself.


I buy these online from Amazon by searching “ethernet lightning arrestor”. I only buy the direct Amazon ones. I don’t think that this is something that I would buy from any website where I didn’t trust the quality.

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ok… didn’t know that, this whole ‘exercise’ is getting more and more expensive :sunglasses:


found them :yum:

This one has been on my roof for the last 15 years…



It might be good to go for FTP/STP but other than that, I would not care too much…

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that’s what I’ve found too yesterday (I think :wink:)

I’ve read that this cable type needs special ‘field connectors’ ?
and what type of protection do you use between the ethernet cable and router, and can I build it inside the outdoor enclosure too ?


i use ubiquiti toughcable carrier (thoughcable pro sucks) for outdoor equipment. It is cheap and the connectors are very small, they fit to many eqipment.


You can mount it with the KNIPEX RJ45 from @jwijngaard post.

Knipex 97 51 10 Crimpzange Modularstecker (Westernstecker) RJ11, RJ12, RJ45

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found the knipex (NL) :sunglasses:

I use the same connectors everywhere…

Nothing… :blush:

Last time we had a serious thunder strike in the area (2 years ago), the surge propagated through the network, killed 3 switches, a Raspberry Pi and my Soekris gateway… but it did came from the cable TV, not from that antenna…

I am not saying you should not protect your equipment, better safe than sorry, I just share my experience…

When I am in the mood of climbing on the roof, I’ll replace that WiFi setup by a TTN one, and I might consider adding some protection at that time (I am still debating with myself, hesitating between a POE setup like this one or having the gateway inside)


want to use it as a solar temperature / alarm sensor
every 5 minutes a temperature reading and at night it also switches on the alarm function with the buildin pir detector.
try for minimal wiring (3 to original PCB)

ds18b20 test

after :sunglasses:


:scream: :sweat_smile:

I am interested to see how this works @BoRRoZ. I have some of these in transit and today the postman delivered some TP5000 modules to charge a 3.6v LiFe04 cell in that slot from small solar. Properly protected (ironically from UV!) this is potentially a €15 permanently deployed LoRaWAN end device.
This is the sort of price one would envisage for a production device not something from @BoRRoZ or @GryKyo hacking at home!
Has been almost all uPython lately, will be a bit of a shocker to dive back into LMIC in Arduino though my IDE of choice has evolved to PlatformIO mostly…
Keep us posted ?

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Sun is shining !


thank you Doctor Ali :sunglasses:

LTC3780 Automatic Regulator Constant Voltage/Current Step Up Down solar Charging

The whole electrolysis using imported patch, low resistance, high frequency capacitor, make the ripple down to the freezing point. ’ … :thinking:


just missing a few parts for this POC :sunglasses:

yagi no 4 arrived - now I have 4 identical antenna’s


The cats?

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* now a mechanism… these yagi’s should unfold like an umbrella :smirk:

Making holes…
… the easy way :roll_eyes:


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that’s cool :wink:

Are you going to stack them to create a single directional antenna or create a 4-directional antenna?

a 4 directional and one omni… connected to a digital attenuator, a node and a gateway, a GPS and a digital compass.
all MCU controlled