# Raspberry Pi **URL:** https://www.evolver.bio/c/software/raspberry-pi/13.md [Latest](https://www.evolver.bio/latest.md) · [Categories](https://www.evolver.bio/categories.md) --- ## [About the Raspberry Pi category](https://www.evolver.bio/t/about-the-raspberry-pi-category/23)
**Author:** [@bgwong](https://www.evolver.bio/u/bgwong)\ **Replies:** 0
--- ## [Raspi image not working](https://www.evolver.bio/t/raspi-image-not-working/523)
**Author:** [@jmgb](https://www.evolver.bio/u/jmgb)\ **Replies:** 4\ **Last updated:** [July 10, 2024, 2:15pm UTC](https://www.evolver.bio/t/raspi-image-not-working/523 "2024-07-10T14:15:00Z")
I used the raspi image from here: Tried with multiple sd cards and when booting up it gets stuck on the fynchbio image. Thanks, --- ## [Updating the eVOLVER server](https://www.evolver.bio/t/updating-the-evolver-server/69)
**Author:** [@heinsz](https://www.evolver.bio/u/heinsz)\ **Replies:** 11\ **Last updated:** [September 27, 2023, 1:04pm UTC](https://www.evolver.bio/t/updating-the-evolver-server/69 "2023-09-27T13:04:20Z")
This is how I update the code on eVOLVER units when we have software updates. I plan to make deployment scripts in the future to streamline this, but if you only have one or two eVOLVERs to update this process is fairly … --- ## [New RPi 3 Model B+](https://www.evolver.bio/t/new-rpi-3-model-b/456)
**Author:** [@kawidney](https://www.evolver.bio/u/kawidney)\ **Replies:** 7\ **Last updated:** [May 17, 2023, 4:36pm UTC](https://www.evolver.bio/t/new-rpi-3-model-b/456 "2023-05-17T16:36:37Z")
Hi, our raspberry pi seemed to have been damaged when we had a spill. We have a new one to replace it, but when I plug it in with the old micro sd, nothing appears to happen (the red power light comes on, and the green l… --- ## [White touchscreen](https://www.evolver.bio/t/white-touchscreen/197)
**Author:** [@danigarcia](https://www.evolver.bio/u/danigarcia)\ **Replies:** 7\ **Last updated:** [January 2, 2023, 4:35pm UTC](https://www.evolver.bio/t/white-touchscreen/197 "2023-01-02T16:35:07Z")
Hi! Some weeks ago I was running a two weeks turbidostat with the eVOLVER and, at some point (\>12 days), the screen turned completely white. I completely stopped the experiment control script in the computer and restarte… --- ## [How much memory for the RPi 4 Model B?](https://www.evolver.bio/t/how-much-memory-for-the-rpi-4-model-b/378)
**Author:** [@eduarda](https://www.evolver.bio/u/eduarda)\ **Replies:** 6\ **Last updated:** [June 2, 2022, 12:40pm UTC](https://www.evolver.bio/t/how-much-memory-for-the-rpi-4-model-b/378 "2022-06-02T12:40:29Z")
Hello!! I’m going to purchase a RPi 4 Model B for my eVOLVER and was wondering how much memory I should go for. Is 1GB enough or do I need a 8GB one? Thanks! --- ## [Sudden disconnections](https://www.evolver.bio/t/sudden-disconnections/295)
**Author:** [@viktoriiagross](https://www.evolver.bio/u/viktoriiagross)\ **Replies:** 6\ **Last updated:** [April 26, 2021, 7:37pm UTC](https://www.evolver.bio/t/sudden-disconnections/295 "2021-04-26T19:37:31Z")
Hi everyone, We have some problems of strange sudden disconnections of eVOLVER. Previously we used local lab network to which were connected both computer and eVOLVER and occasionally there were periods of time when th… --- ## [Lightning bolt appearing on eVOLVER screen](https://www.evolver.bio/t/lightning-bolt-appearing-on-evolver-screen/296)
**Author:** [@danigarcia](https://www.evolver.bio/u/danigarcia)\ **Replies:** 2\ **Last updated:** [April 22, 2021, 3:53pm UTC](https://www.evolver.bio/t/lightning-bolt-appearing-on-evolver-screen/296 "2021-04-22T15:53:57Z")
Hi there! We were ready to start a two-week eVOLVER experiment and a lightning bolt appeared on the screen (first time ever). Google says this means the Raspberry Pi is undervoltage. I connected to the Pi via ssh a… --- ## [Purpose of 'Acknowledge' Command](https://www.evolver.bio/t/purpose-of-acknowledge-command/268)
**Author:** [@Nate\_Borders](https://www.evolver.bio/u/Nate_Borders)\ **Replies:** 2\ **Last updated:** [February 21, 2021, 5:10pm UTC](https://www.evolver.bio/t/purpose-of-acknowledge-command/268 "2021-02-21T17:10:06Z")
I have a question about the acknowledge command sent by the server to the Arduinos. Why is this ‘super important’? I’m asking this because I need to execute commands several times without an acknowledge command. My goal… --- ## [Troubleshooting Setting up Raspberry Pi 4 as eVOLVER Server](https://www.evolver.bio/t/troubleshooting-setting-up-raspberry-pi-4-as-evolver-server/186)
**Author:** [@bsouthard](https://www.evolver.bio/u/bsouthard)\ **Replies:** 1\ **Last updated:** [June 15, 2020, 6:10pm UTC](https://www.evolver.bio/t/troubleshooting-setting-up-raspberry-pi-4-as-evolver-server/186 "2020-06-15T18:10:19Z")
I purchased a Raspberry Pi 4 Model B to use as the server for the eVOLVER I’m building, but I was at a loss on how to set it up to run the python server code given on the github page. @bgwong was kind enough to send me a… --- ## [Dropped fluidic commands](https://www.evolver.bio/t/dropped-fluidic-commands/96)
**Author:** [@cmancuso](https://www.evolver.bio/u/cmancuso)\ **Replies:** 9\ **Last updated:** [May 22, 2019, 9:02pm UTC](https://www.evolver.bio/t/dropped-fluidic-commands/96 "2019-05-22T21:02:27Z")
Currently running 3 eVOLVERs, one is dropping fluidic commands periodically. Chemostat commands to turn on pumps and turn off pumps. 5/16 vials have dropped at least 1 of the 24 commands that have been sent so far in thi… --- ## [Monitoring rpi server](https://www.evolver.bio/t/monitoring-rpi-server/53)
**Author:** [@heinsz](https://www.evolver.bio/u/heinsz)\ **Replies:** 2\ **Last updated:** [April 20, 2019, 6:10pm UTC](https://www.evolver.bio/t/monitoring-rpi-server/53 "2019-04-20T18:10:32Z")
I’ve noticed that occasionally the server completely stop responding, disconnects all clients, and generates no more logs (see this post for an example of what this looks like). Checking in supervisorctl, the server stat…