The min-eVOLVER was originally conceived of as a minimal apparatus to conduct phage-assisted continuous evolution (PACE). Thus it has two bioreactors (eVOLVER Smart Sleeves): one for a "host cell reservoir" and one for a "lagoon". It also has six pumps: four for bulk media in and out of the two Smart Sleeves and two for fine control over inducers into the lagoon.
However, base min-eVOLVER can be used for most continuous culture scenarios, such as turbidostat and chemostat. It can also be readily adapted to new experiments.
Differences from Main eVOLVER
The software architecture of the min-eVOLVER is similar to the original eVOLVER, with the exceptions that:
The Raspberry Pi server has been replaced with a server run on the connected laptop
A single Arduino SAMD21 actuates all functions and collects vial data through the min-eVOLVER board