modules are compatible?
ATMega1284-based modules from
Software & Circuits and from
(AVR-NET-IO), if the MCU is upgraded. Some run caffè!, some
leva!, some ristretto! - check the
Can I install this in
machine <insert name>?
That's for you to find out :) All required information is
contained in the downloads. The
hardware requirements are described at the beginning of the
hardware installation pdf. No technical consulting services
are available here.
Is there a forum for this
There isn't a dedicated forum but you might find interesting threads in coffee forums,
2) and kaffee-netz.de.
Is the new Gaggia Classic manufactured
by Philips compatible?
Gaggia Classic with die-cast aluminium boiler should be compatible, including the latest
886948011010 from Philips. Philips also produces a stripped-down
version with steel boiler without electrical grouphead valve (RI9403). That's
not compatible. Neither is the "Gaggia Classic Coffee", which is
another machine without electrical grouphead valve.
Can the firmware be used with
Theoretically yes. Thermoblocks are just very small boilers.
Potential issues are described in the manual. Note that the
original circuit must handle the steam mode, including the interval pumping that thermoblocks
perform in steam mode ("tock
Can I get pressure profiling from an E61
Some pressure profilig might be possible but it would be
The gicleur before the E61 makes it impossible to
measure the brew pressure in the filter correctly. The preinfusion chamber
of the E61 collides with pressure profiling. The lever-operated
non-electrified valve of the E61 prohibits features such as
pressure profiles with end or dosing. The
electrified E61 (a modern look-alike with solenoid valve, e.g.
in BFC machines) can at least dose.
Can pressure-profiling be used with
Rotary vane pumps are not compatible. The speed of induction motors can not be controlled
(or at least not easily). The high inrush current of such motors
damage microcontroller modules with solid state relays.
be used with HX machines?
HX machines do not profit from precise PID temperature
control (the water temperature at the exit of their short
heat exchangers depends on the flow rate and the inlet
temperature) and they tend to have E61 groupheads, which conflict
with pressure profiling.
Is it possible to flash the firmware with Mac OS X?
For Mac OS X, we have only found a commercial program that can do
that, ZOC from
EmTec. A working trial version is available. You need a terminal
program that supports the XModem CRC protocol over raw TCP/IP. Under
Windows and Linux, please use the free
Can leva! connect
to my Acaia scale or to my Felicita Arc or my Timemore Black
No. The Skale 2 from Atomax is the only supported scale. Bluetooth
LE espresso scales use proprietary protocols. Support for specific
scales can only be added if the manufacturer provides protocol
documentation (none of the above-mentioned has done that) and a sample
(none of the above-mentioned has offered that).
Can I have the firmware
While the firmware is free, it is not open source.
Heureka! I have an idea.
Great! Feel free to submit your ideas and other feedback
1: If you submit ideas, you
agree to grant royalty-free permission to use them.