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i2c transfer timed out
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<blockquote data-quote="f18m" data-source="post: 521" data-attributes="member: 171"><p>Thanks, that helps a lot, my bad I didn't realize which version I bought<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p>Btw one suggestion: the availability of the interrupt line is not mentioned in the docs..it would be useful to mention that <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p>Finally I found some references to situations where I2C bus might lock up, see e.g. <a href="https://pebblebay.com/i2c-lock-up-prevention-and-recovery/" target="_blank">https://pebblebay.com/i2c-lock-up-prevention-and-recovery/</a></p><p>I also found references of this issue specifically happening on raspberry PIs: <a href="https://github.com/PiSupply/PiJuice/issues/634" target="_blank">https://github.com/PiSupply/PiJuice/issues/634</a></p><p></p><p>This is something to consider very well when using I2C on raspberry PIs... I wonder if the SPI bus is better/more stable (any hat with IO expanders using SPI coming soon perhaps? <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> )</p><p>Anyway I'm going to test a few different approaches and will update this thread.</p><p>Thanks for the fast support!</p></blockquote><p></p>
[QUOTE="f18m, post: 521, member: 171"] Thanks, that helps a lot, my bad I didn't realize which version I bought:) Btw one suggestion: the availability of the interrupt line is not mentioned in the docs..it would be useful to mention that :) Finally I found some references to situations where I2C bus might lock up, see e.g. [URL]https://pebblebay.com/i2c-lock-up-prevention-and-recovery/[/URL] I also found references of this issue specifically happening on raspberry PIs: [URL]https://github.com/PiSupply/PiJuice/issues/634[/URL] This is something to consider very well when using I2C on raspberry PIs... I wonder if the SPI bus is better/more stable (any hat with IO expanders using SPI coming soon perhaps? :) ) Anyway I'm going to test a few different approaches and will update this thread. Thanks for the fast support! [/QUOTE]
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