# \#gpio

**URL:** https://discourse.julialang.org/tag/gpio/540.md

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## [\[ANN\] WiringPi.jl Library for GPIO, I2C, SPI, data acquisition](https://discourse.julialang.org/t/ann-wiringpi-jl-library-for-gpio-i2c-spi-data-acquisition/128975)

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**Author:** [@stene](https://discourse.julialang.org/u/stene)\
**Replies:** 2\
**Last updated:** [May 13, 2025, 7:18pm UTC](https://discourse.julialang.org/t/ann-wiringpi-jl-library-for-gpio-i2c-spi-data-acquisition/128975 "2025-05-13T19:18:33Z")

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Port of WiringPi to Julia. Code can be found here Julia WiringPi. Supports GPIO, I2C, SPI. More data acquisition examples will be added.

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## [Raspberry pi newbie, where to begin](https://discourse.julialang.org/t/raspberry-pi-newbie-where-to-begin/79013)

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**Author:** [@EvoArt](https://discourse.julialang.org/u/EvoArt)\
**Replies:** 22\
**Last updated:** [June 22, 2023, 6:00am UTC](https://discourse.julialang.org/t/raspberry-pi-newbie-where-to-begin/79013 "2023-06-22T06:00:55Z")

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Hi all I’ve agreed to help a couple of my colleagues automate some of their lab equipment using a raspberry pi. This is pretty much the blind leading the blind, as I’ve never used a raspberry pi (or similar) before, but…

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## [Is there any way I can call an instance of a function repeatedly with the function retaining internally the last state of the GPIO pin](https://discourse.julialang.org/t/is-there-any-way-i-can-call-an-instance-of-a-function-repeatedly-with-the-function-retaining-internally-the-last-state-of-the-gpio-pin/58748)

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**Author:** [@GregMcC](https://discourse.julialang.org/u/GregMcC)\
**Replies:** 7\
**Last updated:** [April 8, 2021, 11:54pm UTC](https://discourse.julialang.org/t/is-there-any-way-i-can-call-an-instance-of-a-function-repeatedly-with-the-function-retaining-internally-the-last-state-of-the-gpio-pin/58748 "2021-04-08T23:54:46Z")

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I am wanting to monitor some GPIO pins on a Raspberry Pi. Is there any way I can call an instance of a function repeatedly with the function retaining internally the last state of the GPIO pin - so that I can detect Risi…

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## [How to implement a \`nop()\` loop for sub-µs delays? (Raspberry Pi, GPIO)](https://discourse.julialang.org/t/how-to-implement-a-nop-loop-for-sub-s-delays-raspberry-pi-gpio/50790)

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**Author:** [@notinaboat](https://discourse.julialang.org/u/notinaboat)\
**Replies:** 0\
**Last updated:** [November 26, 2020, 1:46am UTC](https://discourse.julialang.org/t/how-to-implement-a-nop-loop-for-sub-s-delays-raspberry-pi-gpio/50790 "2020-11-26T01:46:30Z")

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Hello Julia people, I’ve enjoyed using Julia for signal processing and numeric work and I’ve also tried it for some scripting and automation tasks (with mixed results, sometimes the start-up delay is a killer). I am cu…