I2C error on arduino nano. - Githubissues

oxullo / Arduino-MAX30100

Arduino library for MAX30100, integrated oximeter and heart rate sensor

GNU General Public License v3.0

190 stars 134 forks source link

I2C error on arduino nano. #48

Closed dixitshantanu12 closed 5 years ago

dixitshantanu12 commented 6 years ago

Troubleshooting checklist

[(y)] I read the README (on master) thoroughly
[(y)] I ran the MAX30100_Tester and I'm going to paste the output down below
[(y)] I filled in all the details of my setup down below

Description of the issue - I ran the tester code and it tells me that the I2C has failed. I ran a code to identify the devices and give their I2C numbers and it tells me that there were no devices found. I have pull ups of 4.8k on SDA and SCL lines.

Output from MAX30100_Tester example -

untitled

Details of my setup

Arduino hardware: Nano
MAX30100 breakout: RCWL - 0530
Arduino framework version: 1.8.5
MAX30100 library version: 1.2.0

oxullo commented 6 years ago

@dixitshantanu12 check if the breakout you have shares the same schematics of this one: https://www.sunrom.com/m/5337 If it does, follow the instructions at the very end of the https://github.com/oxullo/Arduino-MAX30100/blob/master/README.md Make also sure that the 1.8V rail is proper and that your pullups are tied to 5V.

oxullo commented 5 years ago

Closing due to inactivity