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Any plans towards profiling?

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 maw
(@maw)
New Member
Joined: 1 year ago
Posts: 1
Topic starter  

Hey there,

First of all: congratulations for this great project! I really like the approach and especially the fact that you open sourced your code. 

My question: do you have any plans to integrate profiling functionality like pressure, flow or temperature profiling? Would this even work with the current hardware setup? 

Regards, 

Marco



   
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(@rjvanheekeren)
Member Moderator
Joined: 1 year ago
Posts: 1
 

Hi Marco,

Thank you and great questions! I'm Joop and I'm the CTO and main software person of diyPresso.

The diyPresso One already has some basic form of pressure/flow-profiling in the form of pre-infusion. It has mechanical pre-infusion as part of its E61 group head. Secondly, the current firmware allows you to configure an additional pre-infusion step as part of your brew cycle. It allows you to configure the timing and duration of a pause of the pump early in the cycle when pulling a shot.

But, as true coffee-nerds, we long for more. We plan to implement a more advanced version of flow profiling in a future firmware update. This will be compatible with the current hardware. We believe we can achieve this using the existing weight sensor under the water reservoir in combination with pulse width modulation (PWM) of the pump. This is currently in the research phase.

For further down the road we might consider adding a digital pressure sensor to the machine, which would likely be made available as an hardware upgrade for existing users. 

With regards to temperature profiling: the diyPresso One has been designed with temperature stability in mind. It has a large boiler and a very heavy group head. This could make it hard to do something very dynamic with temperature, but a temperature profile within a limited range might be possible. Its heater is quite large for its size and due to the weight sensor under the reservoir it knows exactly the amount of cold water ingested into the boiler. This could be an interesting feature to look into in the future.

Are there any specific profiles or goals you would like to achieve with pressure, flow and/or temperature profiling?

Let me know if you have any further questions on any of this.

Best,
Joop van Heekeren



   
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(@kartoffelsalat)
New Member
Joined: 6 months ago
Posts: 1
 

Hi Joop and the diyPresso team,

​I've been looking into the diyPresso recently and I am seriously considering picking up a kit! The machine looks amazing, but true dynamic pressure profiling is a make-or-break feature for me.

​Seeing this older thread, I would love to get an update on where the pressure profiling experiments currently stand. Specifically, I'm curious if there are any official plans to integrate a digital pressure sensor and an AC dimmer board to control the pump. If true pressure profiling isn't available right now out of the box, is it officially on the roadmap for the near future?

​Having the ability to pull complex, dynamic profiles would be a total game changer for me and a guaranteed buy. Thanks for all the incredible work you guys have put into this project!

Many thanks and best wishes

Julian 

 



   
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 kai
(@kaila-yallum)
New Member Customer
Joined: 2 months ago
Posts: 2
 

I, like Julian, am wondering about any updates on this thread. Julian, did you end up picking up a kit? and Joop & team, have there been any updates concerning profiling?



   
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