Siemens washing machine - "pushing" start button with Shelly Shelly 1

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1

Hello community,

because of a dynamic electricity contract i would like to start my washing machine when electricity is cheapest. Today i received all parts (what i thougt) should make this possible. Unfortunately my machine has some kind of touch control which i never dealt before. As far as is found its a inductive touch spring whicht i need to trigger. I disassambled everythng but have no idea which ports i have to “short” to trigger the start button.
The unit is called "MLFB (EPW65546) and i want to use the Shelly 1 - which already working very well with my door opener. Everything else could be done by HA with automation.

Is there anybody out, who could support with this?

s-l1600
s-l16001600×900 146 KB

s-l1600 (1)
s-l1600 (1)1600×900 134 KB

Edit: Its the left “spring” for the start button

2

Have you considered using Switchbot to press the button?

3

Have you tried pulling the spring to ground?

4

at the end i found a solution with support from community
If you’re interessted (but its in german) check here MLFB (EPW65546) - Touch Control aus Siemens WaMa e14-1s - Mikrocontroller.net

5

Could you please provide a summary of that in English? There are more people who might like to understand how to do this

6

At the end its simple:
get a thin isolated cable (!!!as short as possible!!! (that was my problem) ~20cm) and round it 3-4times on the spring you will trigger and connect it to Port “0” on the Shelly.
Get from somewhere (i used the housing) ground and connect to Port one “1”
like this:

999×942 289 KB

I configured the Shelly (with Tasmota) that it will only switch on for 1 sec and then off.

Hope this will help

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