Our software is for espresso machines which have been
equipped with a microcontroller. It is compatible with
portafilter machines with 1 or 2 boilers, vibe pump and
120-240V supply voltage (EU/USA), such as Rancilio Silvia,
ECM Casa IV, Lelit PL, Bezzera BZ09, Vibiemme Domobar etc.
Such machines do not always
reach their full potential because a fine mechanical basis is
combined with limited pressure control, antiquated thermostats or
entry-level PID controllers.
controls heating (PID with feed-forward control), brew pressure
(with feedback from pressure sensor), flow rate, valves, lights,
switches. It can read flow meters, tank sensors and Bluetooth LE
scales. Pump power control adds cool features, for example
pressure profiling (programmable brew pressure profiles),
volumetric and gravimetric dosing and effective warm-up programs.
We support various Atmel ATMega1284-based microcontroller
modules, for example ito, arturo and AVR NET IO. A display
is recommended but not necessary. The microcontroller can be
installed internally and remain invisible, preserving the
original look of your espresso machine: Our firmware can be
configured by software on computers (Windows, Linux, Mac OS
X) and Android devices, connected by WLAN, USB or Bluetooth2.
Three variants of our firmware are
- caffè! and leva!
control heat, pump(s) and valve(s). leva! is for
typical home espresso machines with one valve, one pump
and one or two boilers. It requires only a small
microcontroller module (ito). caffè! is for
machines with more pumps and/or more valves.
It requires a more powerful microcontroller.
- ristretto! is a
minimal version, only for temperature control. It turns a
microcontroller (for example AVR NET IO) into a PID but
does not deal with pumps or valves.
1: Pre-wetting of coffee at
electronically regulated low pressure
2: Depending on selected hardware