https://www.aliexpress.com/item/KY001-DC-3-24V-Single-Key-Bistable-Switch-Circuit-Module-With-Time-Function-For-Instrument-Power/32740734765.html
http://imgur.com/JoURLuc
http://imgur.com/tHOaPzJ
sadly now the images are missing, probably because you moved them out of your dropbox.
could you be so kind and put them back online?
i saw this post with images and basically i remember how to connect ch_pd to the gpio and the switch, i just want to be perfectly sure that i am doing it right ..
thank you
heiterkiter