# Expert needed RasPi project I2C, GPIO issues

**URL:** <https://discourse.nodered.org/t/expert-needed-raspi-project-i2c-gpio-issues/5534>\
**Category:** Hardware\
**Created:** [6 December 2018 13:21 UTC](https://discourse.nodered.org/t/expert-needed-raspi-project-i2c-gpio-issues/5534 "2018-12-06T13:21:29Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![meeki007](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/meeki007/32/12499_2.png) [@meeki007](https://discourse.nodered.org/u/meeki007)\
**Post date:** [19 February 2019 21:52 UTC](https://discourse.nodered.org/t/expert-needed-raspi-project-i2c-gpio-issues/5534/21 "2019-02-19T21:52:10Z")

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Good Day! know that you can email the creator of a node if you need help. or msg the individual here.  
Sorry I just noticed this thread.  
If you run into any more issues with " i2c-lcd-adafruit-sainsmart" let me know.

Meeki

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**Author:** ![GiovanniG](https://avatars.discourse-cdn.com/v4/letter/g/ecd19e/32.png) [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Post date:** [20 February 2019 19:07 UTC](https://discourse.nodered.org/t/expert-needed-raspi-project-i2c-gpio-issues/5534/22 "2019-02-20T19:07:36Z")

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HI mate, thank you for your kind help,  
well time passed and I found some other solutions, I definely stop using RaspberryArduino project, it's too buggy and not very compatible, I used I2C library into Node Red to drive devices, sometime I needed to rewrite in Js code the "drivers" for these divices, cause lack of direct libraries, but the result is ok..

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<div class="post-metadata">

**Author:** ![meeki007](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/meeki007/32/12499_2.png) [@meeki007](https://discourse.nodered.org/u/meeki007)\
**Post date:** [20 February 2019 22:46 UTC](https://discourse.nodered.org/t/expert-needed-raspi-project-i2c-gpio-issues/5534/23 "2019-02-20T22:46:01Z")

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buggy ?  
I have pi's running for 180 days now with no reboots or lockups. Monitoring and running a 200,000 sq refrigeration plant / food production.

I use dietpi to run my pi's its light weight and easy to do. I just got the compressors monitoring. Waiting on a 500 psi sensor so one N/A value for now.

NOTE!!! waiting on engineer to get me the values for the ranges. I have no clue what end points he wants for the gauges

 ![examplevilter](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/2/246f27844d4475ba5ad78f705b481051010a4a9b.jpeg)

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<div class="post-metadata">

**Author:** ![GiovanniG](https://avatars.discourse-cdn.com/v4/letter/g/ecd19e/32.png) [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Post date:** [20 February 2019 23:08 UTC](https://discourse.nodered.org/t/expert-needed-raspi-project-i2c-gpio-issues/5534/24 "2019-02-20T23:08:59Z")

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Glad it works good, I suppose you're using RaspiArduino for your project.. my consideration was exactly about it, not Node Red.  
Buggy because it take full control of I2C and not realease it with wire.end();  
Difficult to find an MQTT plugin and not reliable one I found,  
when you compile.. chanches are it doesn't and copy/paste the code to a new sketch solves the problem,  
you need to accurate remove libraries which are for Arduino only, to avoid IDE compiles with them instead of RaspberryArduino ones.  
There are some difficulties I had. I moved to NodeRed and all solved

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