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Jul 26, 2016 at 16:01 comment added joan There is no material difference in GPIO operation between the Pi2 and Pi3. If you used this set-up on the Pi2 that suggests you have wired something wrong. Perhaps you need to put the Pi2 back and check it still works. The LEDs on a relay reflect the relay circuitry. Not all relays are active high inputs.
Jul 26, 2016 at 15:44 history edited Mathias H. CC BY-SA 3.0
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Jul 26, 2016 at 14:07 answer added joan timeline score: 1
Jul 26, 2016 at 13:48 review First posts
Jul 26, 2016 at 14:20
Jul 26, 2016 at 13:47 history asked Mathias H. CC BY-SA 3.0