Investigating the mechanisms that trigger cardiac arrhythmias is crucial for their diagnosis and treatment. The body surface potential mapping (BSPM) is an advanced technique that uses an array of electrodes in the torso for non-invasive real time acquisition of signals generated by the electrical activity of the heart. However, adoption of BSPM in clinical practice is still limited. Main challenges are the need of a dedicated equipment and software and the positioning and use of a large number of electrodes. The aim of this work is to identify technology gaps on a 64-channels BSPM bedside console system previously developed and to design a wireless transmission interface. Here we present the proof of concept for hardware improvements considering miniaturization of the front end and substituting electrode leads by wireless technology. Electrocardiograms (ECG) from a two-channel ECG acquisition setup previously developed was conducted to investigate the feasibility of the proposal proof-of concept of using a bioelectric signal acquisition microchip in a portable BSPM.