FreeECG-III-ADC1298 12-Lead ECG Acquisition Module ESP32S3 Control Support for LSL Protocol

FreeECG-III-ADC1298 12-Lead ECG Acquisition Module ESP32S3 Control Support for LSL Protocol

Description:
- There are two working modes: ECG workstation (which collects ECG data through WiFi or serial port and transmits it to PC) and Holter (which collects ECG data and stores it in the local TF card).
- It is a 12 lead ECG acquisition board suitable for scientific research, using ESP32S3 as the main controller and ADS1298 chip to synchronously collect 12 lead ECG signals and 3D acceleration signals. The collected data can be uploaded to the upper computer software in real time through WiFi or serial port (not isolated) communication methods; The upper computer software has functions such as real-time waveform display, ECG paper waveform display, real-time heart rate calculation, ECG axis calculation, etc., and can save the collected data in real-time in TXT, CSV, EDF and other formats for easy post-processing; It also supports for LSL protocol, which can send real-time ECG network data streams for convenient remote monitoring and post-processing of ECG signals; The acquisition card also supports for Holter working mode, which allows the collected electrocardiogram data to be stored locally on the TF card without connecting to the upper computer, in EDF format.
- Support functions such as historical data playback and HRV analysis.
- This ECG acquisition board is equivalent to a 12 lead ECG workstation + ECG Holter, and all data is in open format, making it convenient for scientific research.

Features:
- There are two communication interfaces: WiFi and USB (not isolated). Using WiFi wireless communication allows for greater freedom, while using USB port (not isolated) provides more stable transmission and is not affected by RF interference due to its wired interface.
- The WiFi mode supports both AP and STA modes. In AP mode, the ECG acquisition module itself sends out a hotspot, which is equivalent to a router, and the upper computer can join the network; In STA mode, the ECG collector can be integrated into an existing network.
- Due to the USB port not being isolated, if using this method to acquisite ECG, please use a laptop and unplug the laptop's AC power adapter, or use an isolated USB cable.
- Using ESP32S3 processor to drive ADS1298 for ECG acquisition, this solution has higher integration. The single-chip ESP32S3 processor serves as the main control and integrates WiFi communication function internally. Compared with the solution of main control + communication module, this solution has lower power consumption and more sensitive response.
- Built-in 2000mAH high-capacity lithium battery and charging management circuit.
- Under WiFi communication mode, it can support multiple sampling rates such as 250, 500, 1000, 2000, 4000, 8000, etc. Under WiFi communication mode, it can support up to 12 lead 8000 sampling rate synchronous sampling.
- By issuing commands, the serial port baud rate can be configured to 115200 or 921600, supporting multiple sampling rates such as 250, 500, 1000, 2000, 4000, etc. Under serial communication mode, the highest support is synchronous sampling with a sampling rate of 4000 for 12 leads.
- A button is designed on the electrocardiogram acquisition board, which can trigger the Holter function and store the collected electrocardiogram signals in the local TF card without transmitting them to the PC acquisition software. The storage format is the BDF format of the electrocardiogram standard.
- Built-in 3D accelerometer chip, which can synchronously collect 3D acceleration data when collecting 12 lead ECG data.
- Support configuring the working mode and sampling rate of ADS1298 through communication protocol.
- Providing the self-developed for Python executable program FreeECGGUI for the upper computer, which can achieve various functions such as real-time waveform display, ECG drawing, automatic heart rate calculation, HRV analysis, data file storage, real-time forwarding of LSL network data streams, and playback of historical data.
- The collected real-time electrocardiogram data stream can be forwarded through LSL for network sharing, thereby achieving remote sharing of electrocardiogram data or research on real-time processing algorithms.
- Providing battery level detection function, which can observe the current battery level on the upper computer; The collected electrocardiogram data is saved in real-time in formats such as TXT, CSV, EDF, etc., which facilitates algorithm research.
- Equipped with heart rate variability (HRV) analysis function, it has functions such as time-domain, frequency-domain, nonlinear, and time-frequency joint analysis.

Package Included:
- 1 x ECG Acquisition Module
- 1 x HDMI-compatible 12 Lead Cable
- 50 x ECG Electrode Patch

Note:
- This product is only for scientific research or learning purposes and is not a medical product. It cannot be used for official diagnosis or medical purposes.