# Incomplete data recieved, Error with measurement **URL:** \ **Category:** Software\ **Created:** [April 13, 2022, 3:59pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368 "2022-04-13T15:59:15Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Anush](https://avatars.discourse-cdn.com/v4/letter/a/d07c76/32.png) [@Anush](https://www.evolver.bio/u/Anush)\ **Post date:** [April 13, 2022, 3:59pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/1 "2022-04-13T15:59:15Z")
Hello, I am running eVOLVER.py and keep getting the following error “Incomplete data recieved, Error with measurement”. I do not find what could be the problem. Has anyone experienced this before? Thank you very much for your help! Best wishes, Anush ---
**Author:** ![Anush](https://avatars.discourse-cdn.com/v4/letter/a/d07c76/32.png) [@Anush](https://www.evolver.bio/u/Anush)\ **Post date:** [April 13, 2022, 5:20pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/2 "2022-04-13T17:20:49Z")
Hello, related to my question above: when I run the server\_test.py script (from the dpu) everything seems to be working fine from the command line but the eVOLVER is not responding. The server\_test.py should be defining alternating stirring and no stirring intervals of time, but the eVOLVER is not responding to this and keeps stirring all the time… ---
**Author:** ![heinsz](https://yyz1.discourse-cdn.com/flex035/user_avatar/www.evolver.bio/heinsz/32/52_2.png) [@heinsz](https://www.evolver.bio/u/heinsz)\ **Post date:** [April 13, 2022, 7:04pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/3 "2022-04-13T19:04:33Z")
Hi Anush, Can you post a screenshot of the logs from the Raspberry Pi? You can view the logs by first ssh’ing to the RPi, then running `sudo supervisorctl` followed by `tail -f evolver`. Thanks, Zack ---
**Author:** ![Anush](https://avatars.discourse-cdn.com/v4/letter/a/d07c76/32.png) [@Anush](https://www.evolver.bio/u/Anush)\ **Post date:** [April 14, 2022, 2:33am UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/4 "2022-04-14T02:33:51Z")
Hi Zack, Thanks a lot for your answer and help!! Maybe something important to note is that I am connecting to the eVOLVER through my university network and not through a router. I am sending here the screenshot of the logs. These logs seem to be from a default script run by the eVOLVER when it is turned on and not from the eVOLVER.py or server\_test.py I am running from the dpu. In the logs I see a new error “Response has incorrect address”. I found some threads separately in this forum where these were discussed and you suggested increasing the serial\_timeout in conf.yml and increasing the time.sleep in evolver\_server.py. I applied those and sent the updated files to the eVOLVER + restarted it (through ssh), but the error remains appearing in the logs, and I keep having the same problems defined above with eVOLVER.py and server\_test.py. Thank you for any though and help!!! Best wishes, Anush ![Screen Shot 2022-04-13 at 22.19.11](https://canada1.discourse-cdn.com/flex035/uploads/evolver/original/1X/b29b628e8899a10a4eb1a50a8dba6ac7d2ef00f8.png) ---
**Author:** ![heinsz](https://yyz1.discourse-cdn.com/flex035/user_avatar/www.evolver.bio/heinsz/32/52_2.png) [@heinsz](https://www.evolver.bio/u/heinsz)\ **Post date:** [April 14, 2022, 2:51pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/5 "2022-04-14T14:51:09Z")
Hi Anush, Based on your logs it looks like the server is unable to communicate with the SAMD21 microcontrollers, which is why you are seeing incomplete data in the DPU logs. What did you modify the `time.sleep()` and `server_timeout` fields to? Another thing to try is plug in one of the SAMD21s to your laptop or lab computer and open the serial monitor. ![Screen Shot 2022-04-14 at 10.51.29 AM](https://canada1.discourse-cdn.com/flex035/uploads/evolver/original/1X/7c25878b0ec6779605040dc5ff591abcb2e60329.png) You should see the commands being written out here. If you don’t, that means there is something wrong with the RS-485. Zack ---
**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:** [April 14, 2022, 4:27pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/6 "2022-04-14T16:27:55Z")
I agree with Zacks assessment. To add to that, I would make sure the RS485 wire is connected properly. If you open the machine, there should be a telephone wire looking cable that connects the raspberry Pi to the Motherboard. Make sure that is properly connected. ---
**Author:** ![Anush](https://avatars.discourse-cdn.com/v4/letter/a/d07c76/32.png) [@Anush](https://www.evolver.bio/u/Anush)\ **Post date:** [April 14, 2022, 10:30pm UTC](https://www.evolver.bio/t/incomplete-data-recieved-error-with-measurement/368/7 "2022-04-14T22:30:49Z")
Hi Zack and Brandon, Thank you both very much for your advice!!! We opened the eVOLVER and it turns out that a microcontroller had fallen out of place… It is all working now!!! Thanks a lot! Best wishes, Anush