2021-12-14: Move direction to south
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New UHF SatNOGS antenna direction
Did some WSPR portable tests today during my lunch break with OM0ET MC-20 HF loop antenna. WSPR TRX from ZachTek controlled and powered by GPD MicroPC.
87 unique spotters in 12 minutes on 20 meter. Output is 200 mW.
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FT8 contact with VK on 28 MHz
My first Australian contact on HF was done via FT8 on 28 MHz 2021-10-27 with VK6EI.
10 watt with IC-705 and EFHW 40-10 antenna.
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How to use WiZ lights with Domoticz
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.
- In your router, add a static IP to your WiZ lights.
- Add a virtual (dummy) light in Domoticz.
- Download Swiss File Knife and copy just the exe file sfk.exe to a folder, that you will use in step 5 below
- In the virtual light you created, have a level for every action you would like, for exemple ”Off” and ”On”.
- Connect the level to a script action, see the screenshot below
- 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!
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WSPR with Sdrplay RSP1a
Testing RX of WSPR on 20 meter (14 MHz) with Sdrplay RSP1a, SDR Console v3 and WSJT-X.
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Change broken relay Rot2Prog
The Rot2Prog rotor controller from AlfaSpid has four simple relays that several users has reported to be broken. This has also happened to me – I have a relay that has not function very well for several years. So I decided to try to replaced it.
These releay are very cheap and I found replacement at TME:
RM85-2011-35-1012
Relay:electromagnetic;SPDT;Ucoi
l:12VDC;16A/250VAC;16A/24VDC ROHS
Przekaźnik:elektromagnetyczny;SPDT;Ucewki :12VDC;16A/250VAC
Mfr: RELPOL Original part number:
RM85-2011-35-1012
https://www.tme.eu/se/details/rm85-2011-35-1012/elektromagnetiska-miniatyrrelaer/relpol/
Unmount the board
First remove the top cover by removing the four screws at the side of the chassi. Then remove the two screws holding the board, see image below:
The board is built nice, with ferrite on the input and output cable to prevent RF-noice. If needed to change the board, this can be easy done.
Remove relay
Then desolder the faulty relay. For me, it was one of the azimut direction relay, the one to the left:
It was a pain in the *** to desolder and remove this relay! I was close to give up and nearly destroyed the board. But finally, after two hours, I did managed to remove it. I can not understand why AlfaSpid did not mount a relay socket for easy change…
Solder the new relay
This was an easy task, just solder the 8 legs:
Function test
Now connect all the cables and try it. Hopefully it will now work again!
Good luck!
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LNA and antenna switch with ESP8266
This is my first ESP8266 project, for control of my LNAs and antenna relays via a web interface. More info and code at my Github:
https://github.com/LarsThunberg/antenna-lna-ESP8266WebRelaySwitch
