Bought to involve me Brennenstuhl Funkschalterset it in my FHEM home automation system. Since these wireless switches are based on the ELRO AB440, a control via a nanoCUL with 433MHz should be no problem. As soon as the package from Amazon arrived with me, I tried to include one of the three switch .... and nothing went .. even with the supplied remote control, I could not turn. So I tried the next, and this could be switched immediately from my FHEM system. The third worked flawlessly. As a passionate hobbyist me now grabbed the curiosity and I opened once the reluctant candidate. The casing is well protected by three bladed Phillips screws, this could me but thanks to well-stocked toolbox will not stop. After opening the stabbed me immediately the obvious hand soldered board eye. Many solder joints looked pretty unsuccessful. First time I checked the fuse that was OK. Now I looked at the times Lötzinnmassaker on the board more closely, and here I was able to find the same: When soldering the DIP switch board 2 solder points had gathered. After I had repaired these solder joints, everything was OK.
I'll keep the switch, the amateurish processing can but pay no great enthusiasm.
