Kategori: Övrigt

Some construction notes of my two 2.2 GHz Helix antennas I now using for my SatNOGS station and manual satellite RX.

The print scaffold set is from Dereksgc and i friend of mine did the printing https://www.thingiverse.com/thing:4980180

Construction notes from UHF-Satcom:
https://uhf-satcom.com/satellite-reception/s-band

The wire is from a RFC-400 coax cable center conductor – I just stripped one meter.

First set the wire to the printed support frame:

Then drill a hole in the reflector and mount a connector – I used both N-type and SMA-type.

In order to get good 50 ohm match I needed to solder a piece of copper tape according to the image below:

Then a lot of hot glue and UV protection spray to get it a little bit more water proof:

Finally mounted at the mast:

This is the SWR plot after mounting:

I can recommend Dereksgc Youtube channel for lot of videos about S-band antennas and RX:

https://www.youtube.com/@dereksgc

WiZ Connected is a series of lights and other Wifi connected IoT. The units are cheap and works well. The WiZ app is actually good and easy to use. But, if you have a Domoticz system you would of course like to integrate the WiZ units. Below are two solutions:

1. Use the Domoticz plugin

Install this plugin:
https://github.com/sydspost/Domoticz-WiZ-connected-plugin
If you are lucky everything goes OK and you can control your WiZ units.

2. Use UDP commands

I will describe my solution for a Windows system. If you are running Linux I guess it is almost the same.

1. In your router, add a static IP to your WiZ lights.
2. Add a virtual (dummy) light in Domoticz.
3. Download Swiss File Knife and copy just the exe file sfk.exe to a folder, that you will use in step 5 below
4. In the virtual light you created, have a level for every action you would like, for exemple ”Off” and ”On”.
5. Connect the level to a script action, see the screenshot below
   
6. Now you can control your WiZ lights!

The UDP command lines

I got the idea from this site:
https://aleksandr.rogozin.us/blog/2021/8/13/hacking-philips-wiz-lights-via-command-line

I noticed for sending from a Windows cmd you need to escape the ” sign. As an exemple the command for a light is like this (replace the IP address xx.xx.xx.xx with your fixed IP-address of your light):

Turn ON

sfk udpsend xx.xx.xx.xx:38899 -listen {\"id\":1,\"method\":\"setState\",\"params\":{\"state\":true}}

Turn Off

sfk udpsend xx.xx.xx.xx:38899 -listen {\"id\":1,\"method\":\"setState\",\"params\":{\"state\":false}}

Good luck with your WiZ lights and units!

sdfsdf

This is the homepage of Lars Thunberg in Sollentuna, Sweden. Amateur radio callsign SM0TGU e-mail lars(at)larsthunberg.se
For information about my satellites and amateur radio activity please see this page where most of the info are in english. Also see all the posts about amateur radio or use the web page search .

My linkedin page is http://www.linkedin.com/pub/lars-thunberg/1/442/769

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Domänen larsthunberg.se ägs av Lars Thunberg, Sollentuna. Kontakt via e-mail   lars(snabel-a)larsthunberg.se

Om du letar efter ”rätt” Lars Thunberg kan jag nämna att födelseort är Mellösa utanför Flen och födelseår 1972.

För arbetsrelaterade kontakter hänvisar jag till LinkedIn:
http://www.linkedin.com/pub/lars-thunberg/1/442/769