# Processing 4 and midibus on Pi 4 works!

**URL:** https://discourse.processing.org/t/processing-4-and-midibus-on-pi-4-works/32957
**Category:** Processing for Pi
**Created:** [October 20, 2021, 2:38pm UTC](https://discourse.processing.org/t/processing-4-and-midibus-on-pi-4-works/32957 "2021-10-20T14:38:07Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![matheplica](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/matheplica/32/21035_2.png) [@matheplica](https://discourse.processing.org/u/matheplica)
#### Post date: [October 20, 2021, 2:38pm UTC](https://discourse.processing.org/t/processing-4-and-midibus-on-pi-4-works/32957/1 "2021-10-20T14:38:07Z")

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Hi, I managed to run Processing 4 on Pi 4 with decent latency, for audio analysis is not enough but for catch midi and visuals it’s enough, even without export !

I install last [linux manjaro 21.10](https://manjaro.org/download/#raspberry-pi-4).

I install this version on P4 : [P4 for archLinux](https://discourse.processing.org/t/processing-in-style-with-java-11/13776/40)

I download the [arm libericaJdk11](https://bell-sw.com/pages/downloads/#/java-11-lts) that I put in the erased java folder of P4.

And I don’t know why, now midiBus library works !  
Enjoy

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### Author: ![monkstone](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/monkstone/32/64_2.png) [@monkstone](https://discourse.processing.org/u/monkstone)
#### Post date: [October 20, 2021, 4:00pm UTC](https://discourse.processing.org/t/processing-4-and-midibus-on-pi-4-works/32957/2 "2021-10-20T16:00:07Z")

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I wonder if that success is due to libericajdk11 ability to run in 32 bit mode? What I get with ManjaroArm installed jdk is error message (_when I try to run a sketch from the ide_):-

```bash
core does not run on this architecture: arm64
core is only compatible with 32 bit download of Processing

```

ie a spanner in the works, because I know it should work because [PiCrate](https://discourse.processing.org/t/new-release-of-picrate-for-raspberrypi/32424) and py5 both work fine with this jdk.