ams AS7050 Evaluation Kit User Guide

Table of Contents

ams-AS7050 -Kit-PRO

Out of the Box

Evaluation kits main parts

Key

Note:

To install, start the installer executable and follow the instructions as shown in Fig. 3 below (from left to right).
Note: The EVK software is available for download here.

Getting Started

Optionally, connect electrodes to the connector on the back of the external electrodes.
Connect the micro USB cable to the board and plug it into your computer.
Afterward, press the S1 button for one second to turn on the sensor board.
The green LED on the Bluetooth Microcontroller module and the USB connector board will light up as soon as the board is powered.
The yellow LEDs, H1 and H2, on the mainboard will also light up as soon as the board is powered.
Afterward, start the EVK GUI software.

Overview of GUI

Key:

Finger Positioning on the Optical Stack & ECG Electrodes

Place the EVK on the table/flat surface.
Rest forearms and hands on the table and let the finger tips rest.
Keep a light touch on the optical adapter & ECG Electrodes – no need to squeeze or press down too firmly.
Abrupt movement/vibration during measurement should be avoided.

Features of Configuration files for EVK

Starting a HRM measurement

Firstly, press the sensor button ”S1” for 1 second to power on the sensor.
Afterward, select the correct COM port number or BLE MAC address from the drop-down menu.
Then, click the Connect button.
When it is successfully connected, button on the left-hand side of the status bar (AS7050) will change color to green (COM connection) and blue (BLE connection).
The green LED on the Bluetooth module will start blinking as soon as the board connects with the GUI. In the case of a BLE connection, the LED will blink blue instead.
After connecting, select the correct configuration file from the configuration presets provided (EVK: HRM 20 Hz using PPG signal) in the configuration tab.
Then, click the Start Measurement button.
Finally, place a finger on the SFH7072 LED/PD module, and subsequently, you will see the PPG raw data plot in the Graph window and the heart rate in the application output window.

Starting a SpO2 measurement

Firstly, press the sensor button ”S1” for 1 second to power on the sensor.
Afterward, select the correct COM port number or BLE MAC address from the drop-down menu.
Then, click the Connect button.
When it is successfully connected, the button on the left-hand side of the status bar (AS7050) will change color to green (COM connection) and blue (BLE connection).
The green LED on the Bluetooth module will start blinking as soon as the board connects with the GUI. In the case of a BLE connection, the LED will blink blue instead.
After connecting, select the correct configuration file from the configuration presets provided (EVK: SpO2 200 Hz using PPG signal) in the configuration tab.
Then, click the Start Measurement button.
Finally, place a finger on the SFH7072 LED/PD module, and subsequently, you will see the PPG raw data plot in the Graph window and the heart rate & SpO2 percentage in the application output window.

Starting a ECG Raw Data measurement

Firstly, press the sensor button ”S1” for 1 second to power on the sensor.
Afterward, select the correct COM port number or BLE MAC address from the drop-down menu.
Then, click the Connect button.
When it is successfully connected, the button on the left-hand side of the status bar (AS7050) will change color to green (COM connection) and blue (BLE connection).
The green LED on the Bluetooth module will start blinking as soon as the board connects with the GUI. In the case of a BLE connection, the LED will blink blue instead.
After connecting, select the correct configuration file from the configuration presets provided (EVK: ECG 200 Hz, Gain 256 using Electrodes) in the configuration tab.
Then, click the Start Measurement button.
Finally, place three fingers on the ECG electrodes, and subsequently, you will see the ECG raw data plot in the Graph window.

Starting a HRM & ECG raw data measurement

Firstly, press the sensor button ”S1” for 1 second to power on the sensor.
Afterward, select the correct COM port number or BLE number from the drop-down menu.
Then, click the Connect button.
When it is successfully connected, the button on the left-hand side of the status bar (AS7050) will change color to green (COM connection) and blue (BLE connection).
The green LED on the Bluetooth module will start to blink as soon as the board connects with the GUI. In the case of a BLE connection, the LED will blink blue instead.
After connecting, select the correct configuration file from the configuration presets provided (EVK: ECG 200 Hz, 1x PPG 100 Hz, AOC using PPG signal & ECG electrodes) in the configuration tab.
Then, click the Start Measurement button.
Finally, place three fingers on the ECG electrodes & a finger on the SFH7072 LED/PD module, and subsequently, you will see the ECG & PPG raw data plot in the Graph window and the heart rate in the application output window.

Register Map Configuration

To check the current register Map, click on the tab File Register Map
In the Register Map window,
- The register values can be updated.
- New register values can be entered.
- New register values can be saved with a name. Choose the file location, and then click save.

Saving and Loading Configuration

To load a configuration (JSON file), click on the tab File Load Configuration. This will open the Select Configuration File dialog box. Select the JSON configuration file you want to load, and click Open.
To save the current configuration settings, click on the tab File Save Configuration. This will open the Save Configuration File dialog box. Enter a file name, choose the file location, and save it as a ´.json file´. Then, click Save to save the file.

Raw data logging and exporting

To save the measurement data, select Start Logging under the Log tab. The GUI prompts the user to select a file name and the data is saved in CSV format. Optionally, the logging with a timestamp can be selected. This enables automatic saving to subsequent measurement results with file names that have a timestamp.

Optional FW upgrade over USB

Obtain the latest firmware file from ams OSRAM.
Click on the tab Help Firmware Update… to navigate to the “*.dfu” file (latest firmware file).
During the update process, the green LED on the Bluetooth module will turn red.
After a successful update, the red LED will turn green again.

Note: If the firmware update fails, wait 10 seconds and restart the board by pressing the S1 button.