Steam 

1. Two tap steam stop: for those that dislike the default "steam auto purge" behavior. 
2. Reduce electricity consumption by 60% during "hot idle" by easily disabling steam and enabling it when you need it
3. Fast switching from Espresso to Steam
4. Short burst of steam (under 7 seconds) doesn't do a steam purge, just stops.  
5. A steaming problem when using the Filter 2.1 profile, fixed.

 Hot Water 

1. Faster hot water flow rate, and control over it, and less stuttering
2. Realtime control over hot water flow rate, same control as with Steam and Flush
3. Hot water is now automatically temperature accurate, reducing flow if needed
4. Faster starting hot water

 Flush 

1. Control over the Flush flow rate, both faster and slower than previously possible
2. Flush auto stop timer in Insight skin
3. Too long a flush at too high a flow rate generates a warning, and also triggers group head warmup, to prevent too-cool espresso making
4. Realtime control over Flush flow rate, same control as with Steam and Hot Water

 App 

1. Smart Charging: prevents the "tablet battery swells" problem, extends battery life.  Automatically keeps battery charged between 55% and 65%.
2. Tap-on-blue-colored-numbers throughout the app, to get a full screen data entry page.  No more tap-tap-tap on +/- controls
3. Enrique's attractive DUI controls now used widely
4. GHC Purple LEDs flash each time a profile is update
5. Improved use of colors, especially in Insight Dark skin and in listboxes
6. Refill kit auto-detection on DE1 bootup, override on Calibration page
7. Flip screen option for 3rd party tablets
8. Calibration now spreads over 3 pages, with easier navigation between them
9. Reset Skin in the Cloud Update App now also resets screen resolution
10. Built-in profiles cannot be deleted, your version is automatically given a new name

                            DETAILED EXPLANATIONS BELOW                            

                                               Steam                                               

Two tap steam stop: for those that dislike the default "steam auto purge" behavior. 

• those who really dislike the "auto steam purge" because they have move quickly at the end of steaming, 
• yet still handle Decent's worries about milk being sucked up into the steam wand and not cleaned out.

This is an optional feature.

To enable this "two tap steam stop mode", go to Settings->Machine->Page 3. 

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Reduce electricity consumption by 60% during "hot idle" by easily disabling steam and enabling it when you need it

Here is an idle power comparison between the steam-enabled and steam-disabled.

If you're not steaming milk, you absolutely should disable the steamer.

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Fast switching from Espresso to Steam

Short burst of steam (under 7 seconds) doesn't do a steam purge, just stops.  

A steaming problem when using the Filter 2.1 profile, fixed.

                                                Hot Water                                                

Faster hot water flow rate, and control over it, and less stuttering

The DE1's hot water was previously run at 6 ml/s, and also quite sputtery.

It now defaults to 10 ml/s and I'm finding it much less sputtery at that higher flow rate.

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Realtime control over hot water flow rate, same control as with Steam and Flush

Hot water is now automatically temperature accurate, reducing flow if needed

Faster starting hot water

                                                Flush                                                

Control over the Flush flow rate, both faster and slower than previously possible

• if you use the FLUSH feature to quickly make Americanos, then you'll want a faster flow rate. 
• a slower flow rate to just give enough water to clean off the shower screen before (or after) an espresso

Flush auto stop timer in Insight skin

1. faster workflow: no need to stand by to press off
2. saves on use of nice espresso water (you're using nice water, right?)
3. prevents over-cooling the group head, which can happen if you flush for a long time
4. Energy savings

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Too long a flush at too high a flow rate generates a warning, and also triggers group head warmup, to prevent too-cool espresso making

• such as if you're switching from a high temperature profile (such as a 98C pour over) to a lower temp one (a 88C Default Espresso profile).  
• The DE1 preheats the group head to the goal temperature.  
• Physics allows the DE1 to easily heat the group to a new goal temperature, 
• but we don't have an automatic way to cool the group.  But you can cause the group to cool, by doing a longer Flush.

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Realtime control over Flush flow rate, same control as with Steam and Hot Water

                                                App                                                

Smart Charging: prevents the "tablet battery swells" problem, extends battery life.  Automatically keeps battery charged between 55% and 65%.

We've found that the Teclast-manufactured Android tablets we've been shipping for the two past several years, don't like to be kept at 100% full battery charge. After about a year, the battery will often swell. This is a limitation of Android, which doesn't have smart battery charging built into the OS.

We've been providing free replacement to the tablets this happens to, but we'd much rather it doesn't happen.

This de1app upgrade will automatically enable "Smart Charging". You can find this feature in Settings->App->Misc.

The USB charging power on the front of the DE1 will automatically be turned off when the tablet reaches 65%. It will be turned back on when the tablet drops to 55% charge.

There is one small downside to this Smart Charging feature, however:

• each time charging is turned back on (at 55%) the screen backlight will briefly light up, for about 5 seconds
• This is a feature of Android, that we aren't able to turn off
• This is only annoying to those who sleep near your DE1
• To make this less annoying, change your screen saver to BLACK and the screen saver brightness to 0%.  It still won't be 100% black, but it's close.
• Turning the screen off doesn't work as a solution, as the tablet will still light up for 5 seconds when USB power is restored
• We don't recommend disabling the Smart Charging feature, though, because your battery will eventually swell, if kept at 100% at all times

Teclast has developed new firmware for us, that is on tablets we now ship, which automatically:

• stops charging at 80%
• decreases charge wattage as the battery approaches 80% charge
• thus, Smart Charging is not necessary for Black or White colored Teclast tablets that we are shipping as of September 2022.  
  • You can tell that they're Teclast tablets, as they have a USB-C jack on them, whereas our other tablet models have used Micro USB.
• DE1 that we're shipping now won't necessarily have Smart Charging on by default, if it's not necessary.  However, turning the feature on won't have any negative effect on tablet longevity.

Tap-on-blue-colored-numbers throughout the app, to get a full screen data entry page.  No more tap-tap-tap on +/- controls

and you then get a full screen number entry page like this, with quite a few features, thanks to

Enrique

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Enrique's attractive DUI controls now used widely

Much more attractive graphical controls are now widely used in the de1app:

GHC Purple LEDs flash each time a profile is update

• the DE1 won't let you start an espresso until it's finished uploading (takes about 1 second)
• the LEDs on the group head flash purple to let you know the new profile was received.

Improved use of colors, especially in Insight Dark skin and in listboxes

Color contrast on listboxes is everywhere improved:

• with Insight on a white background, the GOD SHOT lines are brighter
• with Insight on a black background, the GOD SHOT lines are darker

Refill kit auto-detection on DE1 bootup, override on Calibration page

• This means that if you plug the refill kit in after powering your DE1 on, the DE1 likely won't use your refill kit.  Power your DE1 off/on again.  
• The refill kit must be plugged in and turned on when the DE1 is turned on, in order for the refill kit to be correctly auto-detected.
• If you have a v1.0 DE1 and a refill kit, you will likely need to choose "force on" to use your refill kit. v1.0 machines didn't have the PCB hardware to detect the power load change that the refill kit causes, so we can't auto-detect.  The setting is on Page 3 of the Settings->Machine->Calibration settings.
• For most people, this will simply work correctly, and you won't need to think about.
• This change was put in for certain "edge cases" so that the DE1 does the right thing.  
• This new feature also means that in the future, the de1app can know if you have a refill kit, and make different decision, or show you different options, as appropriate.

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Flip screen option for 3rd party tablets

This is if your own-purchased tablet has a USB charge port on the right hand side, which is the opposite of where the DE1 wants it to be.

In that case, you will likely rotate your tablet 180º and you need your de1app to flip as well.

You can find it in Settings->App->Misc.

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Calibration now spreads over 3 pages, with easier navigation between them

This is needed because there is now a 3rd page, with some of the new features described above:

Note that the controls on the left of that page also exist, in easier form, in the Insight skin.  However, they're duplicated here so that if you're using a Skin that doesn't implement these new features, you can still get to then.

. . .

There's a calibration warning page now, before you see the first Calibration page. Some people thought it fun to enter outrageous numbers into some of the calibration settings, to see what would happen. 

Depending on what you did, you could make your machine unable to make good espresso, as you'd decalibrated temperature, pressure or flow and you needed to recalibrate it now, which requires some test equipment.

Reset Skin in the Cloud Update App now also resets screen resolution

Built-in profiles cannot be deleted, your version is automatically given a new name

• built-in profiles cannot be deleted. 
  • Instead, tapping the TRASHCAN icon hides them, and they can be unhidden later.  
  • A "read_only 1" setting in the profile file enables this. 
  • For programmers: if you make your own profile and want it to have this "cannot be deleted" property, set "read_only 1" in the saved profile file.
• if you try to save over a built in profile, it is automatically given a new name, with a numeric suffix, to avoid overwriting it
• a long standing bug that caused the same profile name to be used over and over, as you hit the PIGGYBANK save icon, has been fixed.  This would cause lots of profiles with the same name to be created, which you would then need to delete.
• This also fixes an annoying fact of the old system: when you did an "app update" any changes you had made to the built in profiles, were lost.  This can't happen now.

Here's a short video showing how the change works:

The "Name and save" label now simply says "Save" for profiles you've created.  For built-in profile the label reads "Pick a new name to save"