R9One — Smart Espresso Upgrade for the Rocket R9

The shot, live

Watch the 30 seconds that actually matter.

The moment the pump starts, the tablet takes over. One graph, read from across the kitchen: your target pressure, what the pump is really doing, and the weight in the cup climbing to the gram.

Pressure — your set curve vs. what the pump actually delivers, stage by stage
Weight — read straight from your scale, the thickest line on the graph
Flow — see the pour choke or gush before it ruins the shot
A giant shot clock and a STOP your knuckle can find without looking

Numeral rail

24.7 s

21.4 g

2.1

g/s flow

9.0

bar set

Pressure profiling

Build the shot, one stage at a time.

Out of the box, your R9 pulls every shot the same way. R9One unlocks the machine’s five profiles (A–E): each one a five-stage pressure staircase. Tap a stage, set its pressure and duration with two big steppers, and the chart redraws as you go — changes write straight to the machine for your next shot.

Stage 2 of 5

Pressure

9.0 bar

Duration

8.0 s

A

B

C

D

E

Total 27.0 s · Peak 9.0 bar

Fine steps, generous limits — everything the machine itself allows. Big steppers instead of draggable handles: precise, and they survive a wet fingertip.

Custom profiles

And when five stages aren't enough — build your own.

Custom profiles go far beyond the built-in staircase: as many stages as a shot could ever want, each one a smooth ramp or a hard jump, ending on time or stopping at weight.

Any shape

As many stages as you like, each a smooth ramp or an instant jump — gentle blooming declines, lever-style tapers, turbo shots.

Ends how you want

Run to time, or set a stop weight and let your scale end the shot on the gram.

Lives on the module

Profiles are stored and executed on the module itself — the pour finishes even if the tablet drops out, and your library survives a tablet swap.

One tap from Home

Your custom library sits on the Home screen next to A–E. Select one to see its curve, tap to brew, duplicate and tweak under Profiles.

0.0 g

Flow 2.1 g/sStops at 36 g

Your scale, built in

Stop the shot on the gram — hands-free.

Pair your Acaia or Felicita over Bluetooth. R9One tares it, times it, reads the weight beside the graph, and cuts the pump the instant you hit your target — early enough that the last drips land right on the number.

Auto-tare the instant the pump starts
Live weight, flow rate and brew ratio as it pours
Extract-by-weight — set a target and a drip offset, walk away
Targets are saved per profile — each recipe remembers its own stop weight
Works even for shots you start on the machine's own buttons
No tablet needed* — a profile with a stop weight ends on the gram even from the original screen *initial setup via app

The dial-in loop

One tap after the shot. It tells you the next grind.

When the cup's done, the summary card asks one question: sour, good, or bitter. Tap it, and R9One pairs your verdict with what the machine measured — how fast the shot ran against its target — and answers with one plain suggestion: “Ran 6 s fast · try 2 finer.” No stars, no forms, no diary.

Skip it and nothing happens — no nags, no streaks. And when you open a new bag, tell it with two taps and the advice starts fresh.

After the shot

28.4 s · 36.2 g

target 36.0 (+0.2) · B · Classic 9 · ratio 1:2.0

How was it?

SOUR GOOD BITTER

› Ran 6 s fast · try 2 finer (12 → 10)

Bag-aware

Grind advice never crosses a bag change. The Home screen quietly shows where you are — “Ethiopia · day 9 · shot 14.”

Daily knobs up front

Peak pressure and target yield sit as one stepper row above the stage editor — the two numbers you actually touch between shots.

Care, without nagging

It counts your shots, quietly notes when a clean is due, and runs the clean cycle for you — one tap. Never a red badge.

Make it yours

Several looks for the tablet UI — from a clean card dashboard to a graph-first brewing screen. Same data, your taste.

93.5°

READY

ProfileB · Classic 9

Steam124°

Coffee heater Steam heater Pump Group solenoid Fill valve

Live machine data

See what your machine is really doing.

Both boiler temperatures, every heater, pump and valve, the active profile and whether it's ready — all read live off the wire and laid out like an instrument panel you can glance at from across the room.

Real boiler temperatures, not a dial guess
A big READY / HEATING state you can read from 4 metres
Switch profiles, start a shot, or wake the machine from the panel
Set coffee & steam temperatures, steam boiler and water source

The whole upgrade — about the size of a matchbox, tucked inside.

Nothing permanent

A guest inside your machine — never a surgeon.

Your machine still just works

R9One sits quietly on the wire between the controller and the display. When it's off — or if it ever hiccups — the R9 behaves exactly as it did from the factory. A hardware safeguard guarantees it.

Reversible in minutes

It plugs into connectors that are already there. Unplug it and your machine is bone-stock — no cutting, no soldering, nothing left behind.

Gets better over the air

New profiles and features arrive as wireless updates — you never have to open the machine again.

Three steps

From stock to smart in an afternoon.

No workshop, no code, no coffee-shop downtime.

1

Fit the module

Open the R9, clip the module onto the two connectors already inside between the controller and the display. It hides completely.

2

Mount the tablet

Stand any Android tablet on or above the machine, install the R9One app and point it at your Wi-Fi once — it finds the machine on its own.

3

Brew

Pick a profile, pair your scale, pull a shot and watch the pressure and weight live. Tweak, save, repeat.

Good to know

Questions, answered.

Which machine does it fit?

The Rocket R9. The module speaks the machine's own language on the wire that already runs between the controller and its display.

What do I need to run it?

Two things: the R9One module (fits inside the machine) and any Android tablet to mount on or near it. The tablet becomes the machine's live display and control panel; it talks to the module over your home Wi-Fi.

Will it damage or void anything?

It doesn't cut, solder or modify anything — it clips onto existing connectors and comes out in minutes, leaving the machine exactly as it was. It only reads the machine's signals and, when you ask, sends the same commands the machine already uses. (We're an independent upgrade, so check your own warranty terms.)

What if the module fails or I unplug it?

Your machine keeps working normally. The moment anything's wrong, R9One steps aside and hands control straight back to the machine — you can always make espresso the ordinary way.

Which scales work?

Acaia (Lunar / Pearl family) and Felicita Arc over Bluetooth, with auto-tare, live weight and stop-by-weight. More scales are on the way.

Does stop-by-weight work without the tablet?

Yes. Stop weights are saved per profile, and the shot logic runs on the module — so once you’ve set a profile’s target in the app, you can put the tablet away, start that profile from the machine’s original screen, and it still stops on the gram. One catch: the scale must be linked to the module, not to the tablet.

What about cleaning?

R9One counts your shots and quietly tells you when a backflush or descale is due. Cleaning itself is one tap: the auto clean cycle runs the whole routine and just asks you once to brush the group head.

Does it help me dial in?

Yes — gently. After a shot you can tap sour, good or bitter; R9One combines that with the shot’s measured speed and suggests the next grind setting, with its reasoning shown. Skipping costs nothing, advice resets when you start a new bag, and it never volunteers opinions uninvited.

Can I make my own profiles?

Yes — beyond the five machine profiles there’s a custom profile builder: as many stages as you like, each a smooth ramp or a jump, run to time or stopped at weight. Custom profiles are stored on the module itself, so a pour finishes even if the tablet drops out, and your library survives a tablet swap.

Can I edit profiles on the tablet?

Yes. Tap a stage on the pressure staircase and nudge its pressure and time with big steppers — sized for wet hands, precise to the machine's own 0.1-bar resolution. Saved profiles are written to the machine for your next shot.

Early access · Expected Q3 2026 – Q1 2027

Pull better shots from the machine you already own.

Join the early-access list and we'll let you know the moment R9One is ready for your Rocket R9.

You're on the list — talk soon.

Your Rocket R9,with a displayworth watching.