Sensing is life AS7050 Evaluation Kit Quick Start Guide 07/03/2022 1
AS7050 Evaluation Kit Quick Start Guide Contents AS7050 EVK Install Software How to Use AS7050 PC Software Logging Data FW Upgrade 2
Contents of the AS7050 Evaluation kit AS7050 Evaluation kit parts 3 Out of the Box • 1 – AS7050 EVK Mainboard • 2 – SMOD board SFH7072 with Optical stack • 3 – SMOD board SFH7074 with Optical stack • 4 – Micro USB cable • 5 – FPC Cable • 6 – Generic Bluetooth Board 2 5 4 6 1 Fig.
Contents of the AS7050 Evaluation kit Evaluation kits main parts 5 1 2 • Key • 1 - OSRAM SFH 7072 LED/PD module • 2 - AS7050 Sensor • 3 - Three ECG Electrodes • 4 - Bluetooth Microcontroller module and USB connector • 5 - Battery Connection • 6 – sensor board on/off switch • Note: 4 6 3 Fig. 2: AS7050 Evaluation Kit top view 4 1. It is recommended to unplug the battery connection when the EVK is turned off. 2. For independent functions, use the battery e.g.
AS7050 PC Software Installation • To install, start the installer executable and follow the instructions as shown in Fig. 3 below (from left to right). Fig. 3: AS7050 Software Installation steps • 5 Note: The EVK software is available for download here.
Setup Getting Started 1. 2. 3. 4. 5. 6. Sensor Board On/Off Button (S1) ON: Press the button for 1 Sec OFF: Press the button for 3 sec Fig. 4: AS7050 Evaluation Kit power ON 6 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. Afterwards, press the S1 button for one second to turn on the sensor board.
AS7050 PC Software Overview of GUI 1 2 Key 9 8 3 10 4 11 12 5 6 7 Fig.
AS7050 EVK Finger Positioning on the Optical Stack & ECG Electrodes Put Fingers on the respective positions Fix The Optical Adapter Fig. 6: Finger positioning for PPG & ECG on the AS7050 Measurement Conditions 8 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.
AS7050 SW Preset Configuration Files Features of Configuration files for EVK No. 9 Name of Configuration File Features 1 ECG 200 Hz, Gain 256 This is an optimized configuration preset for measuring ECG. Sampling Frequency: 200 Hz Total ECG gain: 4*64*1 = 256 High pass filter cutoff frequency (fc) = 0.33 Hz Low Pass filter: Bypassed 2 HRM 20 Hz In this configuration, the software-based AGC algorithm controls the PD-offset values and LED current to get an optimum PPG signal on the finger.
AS7050 PC Software Starting a HRM measurement 1. 2. 3. 4. 5. 6. 7. 8. Fig. 8: Overview of the GUI (HRM measurement) 10 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).
AS7050 PC Software Starting a SpO2 measurement 1. 2. 3. 4. 5. 6. 7. 8. Fig. 9: Overview of the GUI (SpO2 measurement) 11 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).
AS7050 PC Software Starting a ECG Raw Data measurement 1. 2. 3. 4. 5. 6. 7. 8. Fig. 10: Overview of the GUI (EVK measurement) 12 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).
AS7050 PC Software Starting a HRM & ECG raw data measurement 1. 2. 3. 4. 5. 6. 7. 8. Fig. 11: Overview of the GUI (EVK measurement with PPG) 13 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).
AS7050 Register Map Register Map Configuration • To check the current register Map, click on the tab File Register Map • In the Register Map window, oThe register values can be updated. oNew register values can be entered. oNew register values can be saved with a name. Choose the file location, and then click save. Fig.
AS7050 PC Software 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. Fig. 13: Loading a Configuration File • 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 ´.
AS7050 PC Software 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. Fig.
AS7050 Firmware upgrade Optional FW upgrade over USB Obtain the latest “*.dfu” 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. 1. 2. 3. 4. Fig. 16: Update Firmware via the GUI Note: If the firmware update fails, wait 10 seconds and restart the board by pressing the S1 button. Fig.
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