oxullo/Arduino-MAX30100

I2C error on arduino nano.

Closed this issue · 2 comments

dixitshantanu12 commented

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

@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

Closing due to inactivity