ChrisO Posted May 20, 2020 Share Posted May 20, 2020 Hi I'm trying to use OpiZero with a relais module. I noticed, during the boot the pins I tried (12 and 11, physical 3 resp 5) go high, which makes impossible to manage the relais module. Is it a HW/SW bug or limitation or something what can be configured somehow. I would expect the level to be "nothing" ;-) Thanks Chris Link to comment Share on other sites More sharing options...
ChrisO Posted May 22, 2020 Author Share Posted May 22, 2020 Replying to my own question, just for reference. I found the reason for the high level here: http://linux-sunxi.org/images/4/ ... _Datasheet_V1.2.pdf There are four pins pulled-up at startup, I obviously must have choosen one of them. With GPIO6 pin it works as I expected it to. Link to comment Share on other sites More sharing options...
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