Biofeedback small version with 2 sensors is a great product that was developed by Biofeedback experts, using cutting-edge technologies.

Biofeedback 2 comprises data acquisition hardware inside a 3d printed PLA plastic box for reading and decoding biological signals from the human body. It also contains firmware-embedded software that transmits the signals and analysis to a windows PC or Android mobile. This hardware also reads data from 2 different sensors as real-time values with a transmission rate of 2400 bytes per second.     

To use the Biofeedback 2 hardware efficiently, you need to connect it to an Android using BLE communication. Note that each Biofeedback 2 has its own serial numbers inside the hardware to prevent pirated products. When using the Biofeedback 2 for the first time, you need to activate the hardware from his PC. 

Functions and Features:

The device contains 2 different physiological bio signals sensors, which reads the human body signals, and analysis the psychophysiology parameters as follows:   

1. The blood volume capacity in the finger – BVP (blood volume pulse amplitude that reflects the human fear level).

2. Heart rate (HR) and IBI (Inter Beat Interval in MSEC, increasing the pace - measure pressure and stress - fight or flight syndrome).

3. Dynamically relative blood pressure changes that measure even the very smallest changes of the BP that indicates fear, stress, pressure, fight, and flight.

4. HRV (Heart Rate Variability) time domain calculation and FFT spectrum analysis that provides 40 different psychophysiology and physiological indicators concerning the mental and emotional state of the autonomic nervous system activity. The most 4 common parameters are: "Rumination thoughts" (VLF), "Stress activation" (HF), "relax activation" (LF), "calm ratio" (LF/HF).

The GSR sensor is used for measuring human galvanic Skin Response with 2 electrodes connected to 2 fingers (2 and 4) for the inspection of the sympathetic autonomic nervous system activity. The electric circuit is extremely sensitive and shows values between 2000 to 60,000 in very high-resolution measurements.

PC Software

• The PC software of the Biofeedback 2 enables the customer to run a professional biofeedback clinic, research and personal biofeedback training using a simple and very sophisticated technology that include unlimited HTML remote training pages.
• The trainer can update any kind of surrounding or background or inside artifacts and noises that influence the recorded signals during the training. 
• During the training, all the raw data signals from the sensors and the analysis data concerning the signals will be recorded and will be saved for future review. The customer also can export all the data to .CSV files for personal analysis.
• The Biofeedback 2 software displays the whole process on the PC screen, clearly showing the psychological signals, and also enables the PC to load the training history which can be sent to anyone that using the same platform or as excel files. 
• Biofeedback 2 android APP enables your android device system to read data from the hardware via a BLE communication. The Android device will be used as the power supply for the hardware and as a display screen for showing the subject body’s information.
• The APP has all the line charts that display the raw data from the sensors on the phone screen and sends all the signals to our cloud database servers.

The Biofeedback 2 components:

• 1 X Biofeedback 2 data acquisition 3d printed PLA plastic box.    
• 1 X PPG - BVP heart rate sensor and blood pressure dynamic changes. 
• 1 X GSR electrode cable with Velcro bands.
• 1 X USB cable - 30 cm long for connecting the device to the PC. 
  
• 1 X PC Biofeedback Software.   
• 1 X Read Signals and raw data analysis Software.  
• 1 X Android APP for personal trainings.