Rohm BH1790GLC-EVK-001 User Manual

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BH1790GLC-EVK-001 Manual

Feb/07/2017

Sensor Application G

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Preparation

• Arduino Uno 1pcs

• Personal Computer installed Arduino IDE 1pcs

• Requirement : Arduino 1.6.7 later

• Please use Arduino IDE downloaded from http://www.arduino.cc/

• USB cable for connecting Arduino and PC 1pcs

• SensorShield-EVK-001 1pcs

• BH1790GLC-EVK-001 1pcs

P. 1

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Hardware setting

1. Connect Arduino and SensorShield

USB Connector

2. Connect BH1790GLC-EVK-001 on SensorShield I2C area

3. Set voltage of SensorShield to 3V

VLED terminal position

4. VLED terminal connect to SensorShield 5V terminal (right figure)

5. Connect PC and Arduino with USB cable

P. 2

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Prepare the software

6. Download BH1790GLC.zip from

http://www.rohm.com/web/global/sensor-shield-support

7. Download FlexiTimer2 library from

http://playground.arduino.cc/Main/FlexiTimer2

8. After download this file, change the name to FlexiTimer2.zip

9. Launch Arduino IDE

10.Select [Sketch]->[Include Library]->[Add .ZIP library…], install 6 and 8 ZIP files

11.Select [File]->[Examples]->[BH1790GLC]->[example]->[BH1790GLC]

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Check the setting about Arduino IDE

12.Check the red frame contents.

Boards is “Arduino/Genuino Uno”.

Port is COMxx(Arduino/Genuino Uno). COM port number is different in each environment.

P. 4

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Write the program about BH1790GLC-EVK-001

13.Write the program by Upload Button (red frame)

14.Check that the message of red frame is ”Done uploading”

P. 5

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Measurement

15.Select [Tools]->[Serial Plotter]

16.Put the finger as below figure (Note static electricity)

17.Display Optical Sensor Data with LED ON/OFF on graph

Optical Sensor Data with LED ON

Optical Sensor Data

with LED OFF

P. 6

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Heart Rate Monitor

1. Install BH1790GLC.zip and FlexiTimer2.zip

2. Download BH1790_HeartRate.zip from

http://www.rohm.com/web/global/sensor-shield-support

3. Launch Arduino IDE

4. Select [Sketch]->[include Library]->[Add .ZIP library…], install BH1790_HeartRate.zip file

5. Select [File]->[Examples]->[BH1790GLC_HeartRate]->[example]->[HeartRate]

6. Go ahead in the same way as P.4 and P.5

7. Select [Tools]->[Serial Monitor]

8. Put the finger as P.6 figure

9. Display Heart Rate value and wearing status.

Left value is Heart Rate [unit:bpm], right value is wearing status [0 : not wearing, 1 : wearing]

P. 7

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Board Information

0Ω register for connecting VCC1 to VCC2

Top

Bottom

Part number function

C1 Bypass capacitor for VDD(VCC1,VCC2) C2 Bypass capacitor for VCC2(N.M.)

C3 Bypass capacitor for VLED(N.M.)

R1 R2 Pullup register for SCL(N.M.) R3 Pullup register for SDA(N.M.)

※N.M. = No Mount

If you want to supply different voltage to VCC1 and VCC2, remove R1 register and supply voltage VDD and VCC2.

It is also possible to mount C2 Capacitor additionally.

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Notes

The information contained herein is subject to change without notice.

Before you use our Products, please contact our sales representative and verify the latest specifications :

Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM.

Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production.

The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information.

The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document.

The Products specified in this document are not designed to be radiation tolerant.

For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems.

Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters.

10)

ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein.

11)

ROHM has used reasonable care to ensur the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information.

12)

Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations.

13)

When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act.

14)

This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM.

Notice

www.rohm.com

Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us.

ROHM Customer Support System

http://www.rohm.com/contact/

R1102

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ROHM Semiconductor: BH1790GLC-EVK-001