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oxullo / Arduino-MAX30100

Arduino library for MAX30100, integrated oximeter and heart rate sensor
GNU General Public License v3.0
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Sensor works fine with simple codes, but not when embedded in a larger project #75

Open Ardminu opened 4 years ago

Ardminu commented 4 years ago

Troubleshooting checklist

Description of the issue

My MAX30100 sensor (board that contains the pull up resistor) works fine with your library and gives reading with simple codes like MAX30100_Minimal.ino. However, when I tried to use the sensor in an actual project that contains multiple inputs/outputs, the sensor is not responding properly. When I run the code in debug mode, the sensor get connected successfully, but the sensor.update() did not print any thing on the serial monitor. Sometimes if I disconnect and reconnect the sensor board, 8 pair measurements are printed once on the serial monitor. At first, I thought that the lengthy sketch maybe not satisfying the 100Hz sampling rate required by the sensor. I changed the code to update values from the analog and digital pins every half second, and this makes the loop() iteration taking only ~5ms. However, this did not solve the issue.

I do not suspect a hardware problem as the sensor works fine with the simple sketch. I do connect only SDA & SCL, but not interrupt which is not utilized by the library as I understand.

I am assuming a timing or interrupt problem, but could not figure it out. Any help would be appreciated.

Output from MAX30100_Tester example

Initializing MAX30100..Success Enabling HR/SPO2 mode..done. Configuring LEDs biases to 50mA..done. Lowering the current to 7.6mA..done. Shutting down..done. Resuming normal operation..done. Sampling die temperature..done, temp=34.31C All test pass.

Press any key to go into sampling loop mode IR=0 RED=15 IR=4 RED=0 IR=8 RED=0 IR=0 RED=0 IR=0 RED=1 IR=0 RED=15 IR=6 RED=0 IR=11 RED=0 IR=0 RED=0 IR=0 RED=0 IR=0 RED=13 IR=1 RED=0 IR=2 RED=0 IR=0 RED=0 IR=0 RED=7 IR=3 RED=6 IR=7 RED=0 IR=9 RED=0 IR=0 RED=0 IR=0 RED=10 IR=0 RED=3 IR=3 RED=0 IR=0 RED=0 IR=0 RED=2 IR=0 RED=12 IR=4 RED=0 IR=7 RED=0 IR=2 RED=0 IR=0 RED=1 IR=0 RED=7 IR=2 RED=0 IR=10 RED=0 IR=0 RED=0 IR=0 RED=5 IR=0 RED=4 IR=10 RED=0 IR=3 RED=0 IR=0 RED=0 IR=0 RED=11 IR=0 RED=3 IR=4 RED=0 IR=4 RED=0 IR=0 RED=3 IR=0 RED=3 IR=2 RED=5 IR=7 RED=0 IR=1 RED=0 IR=0 RED=4 IR=0 RED=7 IR=0 RED=3 IR=5 RED=0 IR=0 RED=0 IR=0 RED=1 IR=0 RED=13 IR=6 RED=0 IR=14 RED=0 IR=0 RED=0 IR=0 RED=0 IR=0 RED=12 IR=11 RED=0 IR=8 RED=0 IR=0 RED=0 IR=0 RED=13 IR=0 RED=8 IR=7 RED=0 IR=7 RED=0 IR=0 RED=0 IR=0 RED=13 IR=1 RED=13 IR=14 RED=0 IR=3 RED=0 IR=0 RED=4 IR=0 RED=13 IR=6 RED=1 IR=17 RED=0 IR=0 RED=0 IR=0 RED=11 IR=0 RED=28 IR=8 RED=13 IR=22 RED=10 IR=3 RED=29 IR=2 RED=56 IR=24 RED=77 IR=46 RED=88 IR=64 RED=118 IR=64 RED=165 IR=88 RED=236 IR=131 RED=311 IR=191 RED=398 IR=260 RED=532 IR=333 RED=720 IR=461 RED=947 IR=614 RED=1213 IR=819 RED=1527 IR=1051 RED=1940 IR=1343 RED=2442 IR=1697 RED=2989 IR=2087 RED=3506 IR=2504 RED=4075 IR=2964 RED=4715 IR=3481 RED=5491 IR=4147 RED=6488 IR=4939 RED=7705 IR=5843 RED=9091 IR=6719 RED=10446 IR=7308 RED=11264 IR=7195 RED=10761 IR=6471 RED=9985 IR=5902 RED=9748 IR=6150 RED=10133 IR=6431 RED=10399 IR=6608 RED=10583 IR=6744 RED=10705 IR=6833 RED=10775 IR=6869 RED=10829 IR=6904 RED=10890 IR=6970 RED=10981 IR=7031 RED=11090 IR=7090 RED=11186 IR=7156 RED=11284 IR=7174 RED=11231 IR=7211 RED=11251 IR=7266 RED=11274 IR=7305 RED=11315 IR=7338 RED=11358 IR=7383 RED=11359 IR=7390 RED=11357 IR=7409 RED=11333 IR=7401 RED=11316 IR=7389 RED=11311 IR=7411 RED=11326 IR=7418 RED=11331 IR=7420 RED=11317 IR=7430 RED=11309 IR=7441 RED=11299 IR=7435 RED=11302 IR=7429 RED=11281 IR=7444 RED=11278 IR=7433 RED=11262 IR=7447 RED=11261 IR=7438 RED=11252 IR=7450 RED=11261 IR=7442 RED=11247 IR=7436 RED=11260 IR=7438 RED=11231 IR=7454 RED=11215 IR=7449 RED=11208 IR=7452 RED=11207 IR=7442 RED=11190 IR=7436 RED=11189 IR=7444 RED=11171 IR=7442 RED=11159 IR=7415 RED=11150 IR=7423 RED=11152 IR=7428 RED=11136 IR=7426 RED=11151 IR=7421 RED=11128 IR=7426 RED=11112 IR=7413 RED=11096 IR=7427 RED=11092 IR=7422 RED=11082 IR=7422 RED=11067 IR=7414 RED=11064 IR=7416 RED=11055 IR=7418 RED=11056 IR=7407 RED=11036 IR=7405 RED=11019 IR=7403 RED=11016 IR=7395 RED=11000 IR=7400 RED=10999 IR=7395 RED=10984 IR=7393 RED=10966 IR=7390 RED=10971 IR=7394 RED=10957 IR=7399 RED=10957 IR=7369 RED=10948 IR=7380 RED=10944 IR=7398 RED=10924 IR=7389 RED=10928 IR=7379 RED=10925 IR=7383 RED=10913 IR=7371 RED=10906 IR=7371 RED=10885 IR=7375 RED=10895 IR=7360 RED=10890 IR=7375 RED=10887 IR=7352 RED=10882 IR=7359 RED=10873 IR=7378 RED=10872 IR=7380 RED=10862 IR=7369 RED=10855 IR=7371 RED=10850 IR=7363 RED=10845 IR=7360 RED=10851 IR=7365 RED=10830 IR=7355 RED=10843 IR=7363 RED=10847 IR=7364 RED=10836 IR=7370 RED=10821 IR=7363 RED=10812 IR=7356 RED=10815 IR=7357 RED=10799 IR=7346 RED=10802 IR=7360 RED=10808 IR=7353 RED=10791 IR=7339 RED=10810 IR=7362 RED=10806 IR=7347 RED=10797 IR=7356 RED=10798 IR=7355 RED=10800 IR=7345 RED=10805 IR=7355 RED=10788 IR=7356 RED=10790 IR=7352 RED=10776 IR=7356 RED=10771 IR=7360 RED=10778 IR=7345 RED=10769 IR=7355 RED=10752 IR=7337 RED=10758 IR=7334 RED=10725 IR=7315 RED=10733 IR=7297 RED=10723 IR=7297 RED=10716 IR=7301 RED=10699 IR=7267 RED=10682 IR=7248 RED=10656 IR=7255 RED=10656 IR=7244 RED=10649 IR=7235 RED=10640 IR=7227 RED=10629 IR=7197 RED=10637 IR=7214 RED=10624 IR=7226 RED=10612 IR=7205 RED=10627 IR=7212 RED=10622 IR=7211 RED=10615 IR=7201 RED=10614 IR=7199 RED=10604 IR=7184 RED=10602 IR=7182 RED=10590 IR=7184 RED=10573 IR=7182 RED=10583 IR=7177 RED=10550 IR=7180 RED=10572 IR=7178 RED=10558 IR=7182 RED=10576 IR=7186 RED=10565 IR=7179 RED=10566 IR=7195 RED=10562 IR=7170 RED=10541 IR=7177 RED=10548 IR=7170 RED=10539 IR=7175 RED=10553 IR=7166 RED=10535 IR=7171 RED=10532 IR=7169 RED=10543 IR=7179 RED=10541 IR=7162 RED=10535 IR=7170 RED=10533 IR=7164 RED=10527 IR=7172 RED=10525 IR=7172 RED=10520 IR=7155 RED=10519 IR=7163 RED=10517 IR=7159 RED=10522 IR=7164 RED=10529 IR=7167 RED=10508 IR=7139 RED=10512 IR=7159 RED=10507 IR=7181 RED=10504 IR=7162 RED=10505 IR=7159 RED=10494 IR=7151 RED=10487 IR=7160 RED=10495 IR=7163 RED=10478 IR=7160 RED=10496 IR=7189 RED=10511 IR=7176 RED=10521 IR=7188 RED=10530 IR=7173 RED=10545 IR=7199 RED=10574 IR=7226 RED=10629 IR=7255 RED=10731 IR=7332 RED=10940 IR=7463 RED=11486 IR=8387 RED=13277 IR=8856 RED=13901 IR=9249 RED=14447 IR=8835 RED=13018 IR=7068 RED=10049 IR=5144 RED=8192 IR=3615 RED=5230 IR=2544 RED=3751 IR=1771 RED=2683 IR=1266 RED=1969 IR=934 RED=1481 IR=709 RED=1144 IR=550 RED=916 IR=448 RED=755 IR=371 RED=624 IR=323 RED=523 IR=272 RED=456 IR=230 RED=399 IR=207 RED=359 IR=196 RED=315 IR=173 RED=279 IR=154 RED=256 IR=133 RED=238 IR=125 RED=212 IR=115 RED=199 IR=116 RED=185 IR=105 RED=174 IR=96 RED=174 IR=100 RED=168 IR=91 RED=146 IR=88 RED=142 IR=81 RED=139 IR=75 RED=143 IR=83 RED=131 IR=81 RED=124 IR=74 RED=111 IR=66 RED=110 IR=60 RED=111 IR=61 RED=100 IR=72 RED=86 IR=59 RED=94 IR=51 RED=96 IR=56 RED=96 IR=58 RED=89 IR=57 RED=85 IR=56 RED=84 IR=43 RED=84 IR=48 RED=93 IR=52 RED=77 IR=55 RED=85 IR=49 RED=85 IR=47 RED=92 IR=54 RED=94 IR=57 RED=84 IR=59 RED=85 IR=54 RED=92 IR=55 RED=102 IR=61 RED=98 IR=69 RED=100 IR=65 RED=101 IR=63 RED=107 IR=67 RED=119 IR=64 RED=115 IR=81 RED=121 IR=76 RED=125 IR=74 RED=134 IR=76 RED=149 IR=85 RED=139 IR=85 RED=126 IR=80 RED=131 IR=67 RED=145 IR=75 RED=146 IR=78 RED=134 IR=89 RED=128 IR=69 RED=135 IR=60 RED=133 IR=65 RED=144 IR=74 RED=119 IR=75 RED=123 IR=58 RED=133 IR=56 RED=142 IR=77 RED=140 IR=85 RED=133 IR=78 RED=136 IR=63 RED=168 IR=71 RED=175 IR=93 RED=186 IR=103 RED=181 IR=101 RED=206 IR=94 RED=235 IR=113 RED=267 IR=137 RED=289 IR=163 RED=297 IR=166 RED=340 IR=170 RED=384 IR=203 RED=423 IR=224 RED=442 IR=241 RED=463 IR=238 RED=486 IR=241 RED=520 IR=254 RED=548 IR=280 RED=552 IR=282 RED=572 IR=280 RED=604 IR=290 RED=648 IR=323 RED=700

Details of my setup

MohamedZaky0 commented 3 years ago

@Ardminu Have u made it work ? How dod u merge it with other sesnsors ?

Ramshask commented 1 year ago

I'm facing similar issue. Is there any breakthrough to this problem? Help would be appreciated. I am using gy-max30100 with 3 different sensors all interfaced to esp32 but max does not show any values only zeroes. Its working fine when it is seperately interfaced with esp but not with other sensors.