Ingestible Sensor to monitor breathing is currently being tested at MIT

 

The trial is employing capsules manufactured by Celero Systems, a startup that was founded by MIT and Harvard Researchers. It consists of two batteries an antenna to transmit the data. Sized similar to an ordinary vitamin tablet, the capsule passes through the gastrointestinal tracts of the patient and records and transmits vital data of the patient, which is logged and used to study and even diagnose conditions that would otherwise require multiple sensors and equipment.