1 / 3 ? 201 7 rohm co., ltd. no. 60 ug 056 e rev. 00 1 jan . 201 8 user s guide optical sensor for heart rate monitor bh1792glc - evk - 001 manual bh1 7 92glc - evk - 0 01 is an evaluation board for bh1792glc , which is a rohm optical sensor for heart rate monitor . this user s guide is about how to use bh1792glc - evk - 001 together with sensorshield * 1 . *1 sensor shield is sold as a single unit of shield - evk - 001 or as a part of sensorshield - evk - 00 2 . preparation ? arduino uno 1pc ? personal comput er installed arduino ide 1pc ? req uire ment : arduino 1.6.7 or higher ? please use arduino ide which can be downloaded from the link below: http://www.arduino.cc/ ? usb cable for c onnecting arduino and pc 1pc ? sensor shield 1pc ? bh1792glc - evk - 001 1pc s etting 1. conne ct the arduino and the sensor shield (figure 1) fig ure 1. connection between the arduino and the sensor shield 2. c onnect bh1792glc - evk - 001 to the socket of i2c area on the sensor shield (figure 2) 3. set voltage of the sensor shield to 3.0v (figure 2) 4. set the vled terminal to the terminal for 5.0v of the sensorshield 5. set inter rupt of the sensorshield to int 1 (figure 2) figure 2. connect ion between bh1792glc - evk - 001 and the sensor shield 6. set pull - up setting of the sensorshield to int1(figure 2) 7. connec t the arduino to the pc using a usb cable 8. downloa d bh1792glc .zip from the link below: http: // www.rohm.com/web/global/sensor - shield - support 9. download a library of flexitimer2 from the link below: http://playground.arduino.cc/main/flexitimer2 10. change the file name of flexitimer2 to flixitimer2.zip 11. launch arduino ide 12. select [sketch] - >[include library] - >[add.zip library...], install bh1792glc .zip and flixitimer2.zip 13. select [file] - >[examples] - >[ bh1792glc ] - >[example] - > [ bh1792glc ] usb connecter sensorshield 3. v oltage setting pin 5. i nterrupt setting pin 2. b h1792glc - evk - 001 6. pull - up setting pin 3v 5 v 1.8v j15 4. vled terminal
2 / 3 ? 201 7 rohm co., ltd. no. 60 ug 056 e rev. 00 1 jan . 201 8 user s guide bh1792glc - evk - 001 manual measurement 1. select [tools] and c hec k the contents enclosed in the red frame . (f igure 3 ) board is arduino/genuino uno . port is comxx (arduino/genuino uno) . com port numb er is different in each environment . figure 3. com p ort setting 2. writ e the p rogram by pressing right arrow button for upload (figure 4) 3. wait for the message done uploading (figure 4 ) figure 4 . u ploading 4. select [ tools ] - > [ serial plotter ] (figure 5) figure 5. t ool s setting 5. place finger on top of the sensor board . (figure 6) note: be careful of static electricity. figure 6. measurement environment 6. check log of serial plotter (figure 7 ) figure 7 . serial plotter optical sensor data with led off optical sensor data with led o n
3 / 3 ? 201 7 rohm co., ltd. no. 60 ug 056 e rev. 00 1 jan . 201 8 user s guide bh1792glc - evk - 001 manual board information figure 8 . p icture of the board table 1. part s information
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