A prototype of a diagnostic complex for continuous monitoring of patient's cardiac activity (electrocardiography, heart rate) is described. The complex contains an intelligent sensor data acquisition system, a processing system based on a Bluetooth piconet microserver, and a communicator for transmitting data from the data acquisition and processing system to a medical server. The algorithms of preprocessing of the sensor signals and the structure of the mobile application of the communicator and medical server are also presented. Structural, hardware, and software solutions presented demonstrate the feasibility of a complex with sensors that allow patients to perform their usual daily functions
