Figure 2
From: OSERR: an open-source standalone electrophysiology recording system for rodents

Configuration of OSERR. (A) A photograph of the system. It measures 13 × 8 × 8 mm3 and weighs 1.8 g including the battery. (B) Sequence of 3 consecutive frames from a video showing the synchronization procedure. A magnet is used to start acquisition which is marked by an LED flash. (C) A photograph of OSERR plugged into an implanted electrode socket on a mouse. (D) After recording, OSERR is unplugged from the animal, plugged into the OSERR/USB interface board and data are read using a MATLAB GUI (E).