# Playing around with code to learn

**URL:** <https://www.evolver.bio/t/playing-around-with-code-to-learn/600>\
**Category:** Software\
**Created:** [July 30, 2025, 2:32pm UTC](https://www.evolver.bio/t/playing-around-with-code-to-learn/600 "2025-07-30T14:32:02Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![KevinDM](https://yyz1.discourse-cdn.com/flex035/user_avatar/www.evolver.bio/kevindm/32/640_2.png) [@KevinDM](https://www.evolver.bio/u/KevinDM)\
**Post date:** [August 1, 2025, 8:54am UTC](https://www.evolver.bio/t/playing-around-with-code-to-learn/600/3 "2025-08-01T08:54:08Z")

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Hi Nate,

Great to hear that the software is being further developed (Can’t wait!). Would be extremely helpful to have a built-in GUI-friendly ‘mode selection‘ option or something, including a ‘standard’ ePACE like-feature.

So our specific (test) setup is mentioned here: [How and where do I reconfigure pump assignments?](https://www.evolver.bio/t/how-and-where-do-i-reconfigure-pump-assignments/596)  
If I understand correctly, instead of trying to reassign pump positions or so in the eVOLVER.py or server.py code, I can just adapt the custom\_script.py file and only insert numbers in the fluid command message in the pumps I would use, right? However, I am now just trying to ‘actuate’ stuff in order to teach myself how coding works to control ‘something’ (again - and I keep mentioning this - I have 0 coding experience). Can I just run a pump test with water if I set OD threshold values to ‘not used’ in the turbidostat mode? Do I need to have a calibration first so that the custom\_script.py pulls this file in? Can I simply run a calibration with having fast pumps 0-3 (to vial 0-3) and 4-7 (to vial 8-11) as influx, while pumps 8-15 are for efflux (same pump array). The slow pumps are then to transfer from T-stat to lagoon and do efflux at same rate. Can I give commands at the beginning of an experiment to pull media from the carboy into the T-stat (30 ml) from which next 10 ml will be pulled into the lagoon? That way you don’t have to fill each T-stat or lagoon vial manually (more contamination risk…?). These things I wanted to test first with water, but I’m not sure if this will work if the OD treshold things aren’t reading anything in the t-stat mode.

I understand that you can write your own ‘mode’ in the custom\_script and I went through the ePACE adapted one, but still am not sure where to begin to make something for like a ‘fluidics test’ or so.

Maybe this sounds trivial and is not very relevant, but we are awaiting complete installation of our eVOLVER (splash box ordered, biosafety cabinet pending), and I am simply trying to train/prepare myself to be ‘ready’ once our machine is ready-to-go.

Cheers,  
Kevin

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