# Issues with OD calibration **URL:** \ **Category:** Uncategorized\ **Created:** [January 13, 2021, 9:02pm UTC](https://www.evolver.bio/t/issues-with-od-calibration/250 "2021-01-13T21:02:48Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![bgwong](https://yyz1.discourse-cdn.com/flex035/user_avatar/www.evolver.bio/bgwong/32/262_2.png) [@bgwong](https://www.evolver.bio/u/bgwong)\ **Post date:** [January 14, 2021, 3:29am UTC](https://www.evolver.bio/t/issues-with-od-calibration/250/2 "2021-01-14T03:29:02Z")
For us to help you, we need to see the configuration file of the eVOLVER. Can you ssh into the pi using these instructions and copy and paste what is in the conf.yml file? Thanks. 1. Go to Terminal and type in `ssh pi@`, for example, our evolver is 192.168.1.2 so we would put `ssh pi@192.168.1.2` The password is `DbLaoXDr` 2. Type the following: `nano evolver/evolver/conf.yml` 3. Copy and paste what is listed there to this thread. --- _[View the full topic](https://www.evolver.bio/t/issues-with-od-calibration/250)._