Bernd's Weblog

Boot it and overwrite disks with it. Same could be done with a live linux system, but the redkey has an own graph user interface.

But after some weeks of observation (word) filters on the subect of pharma e-mails should work, they use "rezeptfrei" in different variations with underscore and hypens:

My approach: A WIFI PIR motion sensor in the mailbox, connected with my home WLAN. Batteries should work for apprx. 6 months.

Notifications would work via the app on my cellular phone, but I don't want to run the app always.

My solution: The PIR sensor idles most of the time, but (for sure) it connects to the WLAN, when a motion is detected.

Can be found in the log of my core router:

ab:cd:12:34:EF:12@mywlan: connected, signal strength -83
ab:cd:12:34:EF:12@mywlam: disconnected, extensive data loss, signal strength -83

Means I only need a script in my router, which checks for the WLAN registration of this MAC address and sends an alert:

:if ([/int wir reg pr co wh mac-address:ab:cd:12:34:EF:12] = 1)
do={/tool e-mail send to=my@adress subject="postkasten aktiv"
from=router@email body="postkasten aktiv"
} else={

And it works :-)

but with using better and bigger sd-cards the problem shifts: this year I already replaced a PSU for a raspberry 3b and now for a odroid xu3. main problem for analysis "on the site": the PSUs still deliver a little bit of power, the power leds of the SOCs are working, but under load the PSUs break down.

I use "oversized" PSUs for the raspberries (1 or more ampere) for not using them "on the edge", replacement is easy.

More difficult the replacement for the odroid xu3: 5v/4ampere with a hollow plug.

On the left: Broken PSU for the odroid xu3
On the right: New PSU with the same specifications

And I wrote about that topic before in 2018:
http://bernd.priv.at/blog/archives/2018/08/#e2018-08-29T21_21_05.txt
http://bernd.priv.at/blog/archives/2018/08/#e2018-08-22T00_52_36.txt

The one in the valley: Idleling, not much traffic here in Wattens, only a few gliders.

1) If a odroid XU3 is malfunctioning and you suspect the emmc/sd-card: Have a look at the power supply unit first (second time now I carried the odroid xu3 with me into the valley and had nothing to do). After 5 years the memories faded away: http://bernd.priv.at/blog/archives/2018/08/#e2018-08-22T00_52_36.txt

2) If you have a routing radio which stopped working, take another routing radio, another cable and power injector with you and try the analysis. If all fails: Unexpected, but the ethernet port on the switch was "dead"... so repatching necessary.

3) If another routing radio stopped working and the spare part doesn't ork either, check the cable. Maybe some cows were hungry.

4) If a sensor doesn't transmit weather data, change the batteries. If it still doesn't work, replace it (was an ELV ASH-2200, now replaced by an ELV S300TH)

Pictures: Some of the equipment prepared, destroyed ethernet cable, old weather sensor PCB and n-connectors in the sun