software is for espresso machines which have been equipped
with an Atmel AVR microcontroller. It is compatible with
portafilter machines with 1 or 2 boilers, vibratory pump
and 220-240V/50Hz supply voltage (EU), such as Rancilio
Silvia, ECM Casa IV, Lelit PL series, Bezzera BZ09,
Vibiemme Domobar etc.
Such machines offer good
thermal properties but do not reach their full potential because a
fine mechanical basis is combined with limited pressure control,
antiquated thermostats or entry-level PID controllers.
Our software controls heating
elements (PID with feed-forward control), brew pressure (via feedback from
a pressure sensor), valves, lights, switches, flow
meter and tank sensor. Pump power control adds cool features, for
example pressure profiling programs for variable brew pressure,
volumetric dosing or an effective warm-up programs.
various Atmel ATMega1284-based microcontroller modules. A
display is recommended but not necessary. A compatible
module can be installed internally and remain
invisible, preserving the original look of your espresso
machine. Our firmware can be configured by software on a
computer connected by WLAN/Wifi, USB or Bluetooth.
leva! and ristretto!
variants are available:
- caffè! and leva!
control heat, pump and valves. caffè! can control more
components and requires a more powerful microcontroller.
- ristretto! is a minimal version focused on temperature
control. It turns a microcontroller into a PID but does not
deal with pump or valves.
1: Pre-wetting of coffee grounds
at electronically regulated low pressure (not simple
"stop and go" preinfusion).