The growing popularity of fitness in modern life has become a sought-after lifestyle, and fitness has become an important part of many people's daily lives. While working out, stretching and relaxing after working out is also essential.

After fitness we can generally through dynamic / static stretching, machine membrane gun, etc. to assist, but for professional athletes these are often not enough, professional athletes may be with the help of professional stretching equipment or equipment for training. For example: myoelectric biofeedback machine.

EMG Biofeedback is based on the mechanism of EMG biofeedback, combined with a certain intensity of low-frequency pulses on the muscles for electrical stimulation, so that the muscles are tense or relaxed, to train and improve muscle function. A mature EMG biofeedback instrument product must have the ability to detect EMG signals in the body, in order to carry out the next step of muscle electrical stimulation session, so the detection of bioelectric signals is particularly important.

Nanochap Nine Senses Series EPC001 is a sensing chip system designed specifically for bioelectricity. It is an integrated high-precision ECG, EEG, EMG, PPG analog front-end and powerful RISC-V microcontroller, while the SoC integrates the ECG/PPG feature extraction function (Heat APP), and its versatile peripheral interfaces allow for the expansion of multiple different sensors outside the Soc.

Principle of Nanochap Nine Senses Series EPC001 in EMG biofeedback instrument:

• Detection of EMG signals through the multiple electrical signal detection capabilities of the EPC001 chip;

• The other hardware parts in the EMG biofeedback instrument will process the detected EMG information into sound, light and other signals that the patient can recognize and feedback to the patient;

• After receiving the signals, the patient is trained to adjust the function of the body and prevent and cure diseases.

Nanochap Vital Signs Parameter Detection Chip Nine Senses Series EPC001 is an advanced EMG detection chip, which adopts self-developed high-precision algorithms with high acquisition accuracy, and can realize accurate detection of weak electrical signals in the human body. In addition, the chip has a low input noise of <1μVrms (BW=150HZ, gain=6), which is able to greatly cut down the noise impact brought by the acquisition of EMG signals, and is characterized by high precision, high sensitivity and low power consumption.

Based on a variety of signal detection capabilities, Nanochap EPC001 is able to detect heart rate, respiratory rate, oxygen saturation, blood pressure, concentration, relaxation and other human parameters, which gives the EMG biofeedback device more detection capabilities. At the same time, the chip can output the processed data to an external device and display it to the user through a visual interface.

Nanochap Nine Senses Series EPC001 Vital Signs Parameter Detection Chip Advantages and Features:

High integration: integrated RISC-V MCU, single-channel ECG analog front-end, single-channel PPG analog front-end, hardware filter circuit;

Rich interfaces: Uart, SPI, QSPI, I2C, I2S and other communication interfaces;

High detection accuracy: ultra-low-noise programmable amplifier PGA and 24-bit ADC to intercept the complete signal with high dynamic range and high accuracy, providing guarantee for the accuracy of measurement results;

Three-stage integrated comb filter;

Stand-alone acquisition system with up to 32kHz bandwidth.

Product Parameters

Operating voltage range: 2.5V-5V

Operating temperature range: -40°C to 125°C

Low power consumption modes: sleep mode, shutdown mode, standby mode

INA programmable gain range: 1-120

AC and DC lead shedding detection

Supports right leg drive (RLD)

24-bit ADC analog front-end with programmable amplifier support