[tbot] [DENX] [Knowledge sharing] Power strip IP device

Lukasz Majewski lukma at denx.de
Thu Feb 7 10:10:27 UTC 2019


Dear Wolfgang,

> Dear Lukasz,
> 
> In message <20190207100526.1574e838 at jawa> you wrote:
> >  
> > > So if you need to address another area of remote controling
> > > devices (like remote operation of reset button or boot mode
> > > jumpers etc.)=20 you can for example use a Sonoff 4CH Pro R2 mit
> > > Tasmota firmware which gets you 4 relays you can operate over
> > > wifi for just 14=E2=82=AC.  
> >
> > When I will be forced to connect more than 4 (8?) devices (which are
> > pretty power hungry) - then not only scale matter, but also the
> > power output from the supply.
> >
> > But Yes, PC power supply with high quality relays scales better.  
> 
> You misunderstand.  I use the relays only for things like reset
> button, or boot mode jumpers, etc.

Yes, I've misunderstood you :-)

> 
> > Can you recommend any 12/24V power supply? (Either standalone or U
> > rack one?). Or do you use "normal" PC power supply  
> 
> None of this.  I always use the power supplies provided with the
> device by the customer, and I switch the 230V mains.

Ok. Now it is clear.

> 
> > It seems so. As said before - I do want to have working prototype
> > first (with tbot).  
> 
> So did I - using the web interface of the Tasmota firmware (which
> you can also operate using curl, for example), but this is just
> "open" in the network, zero security.  That's why my goal is to go
> for MQTT (and then probably Node Red).
> 

Ok.

> 
> Best regards,
> 
> Wolfgang Denk
> 


Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
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