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tatemazer / AcaiaArduinoBLE

Acaia Scale Gateway using the ArduinoBLE library for devices such as the esp32 and other Bluetooth-enabled Arduino compatible hardware.
MIT License
40 stars 6 forks source link

Switching high voltage (on Rancillio) #6

Open FelixMau opened 4 months ago

FelixMau commented 4 months ago

Dear Tatemazer,

I would really like to copy your build and apply it to my La Spaziale Vivaldi S1 and to a Bezzera Bz07 from a friend. And maybe building some DIY scale as well to save money :) This is my first Arduino/electronics focused project so I would be happy if you'd answere my question. I wondered how you reduce the high voltage when using the rancillio pro? I must have overseen something that has been mentioned somewhere. But to me it seems as there is the full voltage applied between 8 and 7 and the maximum voltage the optocopler can switch is 5 Volts? image

Moreover to me it seems that the altium/file hosting has some issue where I can't open the page.

Kind regards, Felix

tatemazer commented 4 months ago

Hi Felix, sorry about the altium issue, I'll look into a better way of hosting those files.

As for the Rancilio Silvia Pro, it uses a 5VDC signal to control the brew switch, so there is no high voltage that touches the shotStopper. I hope that helps!

FelixMau commented 4 months ago

Okay, good to knowm thank you very much! I already questioned my electrical capabilities.

Since I am looking into that I would add a 230V switch option here as soon as I am finished and it is working. Hopefully we can help more people with that and cover more machines! Let me know if you are interested in improvements here or if I should do it on my own (with less docu).

tatemazer commented 3 months ago

Felix,

are there specific machines you are hoping to support with this 230V switch? My understanding is that both the La Spaziale Vivaldi S1 and the Bezzera BZ07 use low-voltage brew switches. Both of these machines use a low-voltage keypad similar to the GS3 (which is officially supported by the shotStopper).

I might suggest inspecting the wiring harness of these machines to confirm.

FelixMau commented 3 months ago

Unfortunately as far as I can see on mine BZ07 S PM I have high voltage switches. Also the small Lelits, ECM, Profitecs and Domita (of course only without E61) has high voltage swtiches as far as I know So I think the usability would increase and more could use it :) Also I am having the same 16 Pin connector on La Spaziale Vivalid II but with different routing ofc :)

I didn't have propper meassuring tools so I got wrong messures of Voltages on the vivaldi because I thoched the wrong pins, so I can confirm it runs at 5 V ( I thought it was 15)

Edit: Thank you so much for your nice code work btw, I could connect my ESP board to Acaia without any problems, just plug and play, very nice work!