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jperkin / node-rpio

Raspberry Pi GPIO library for node.js
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open with pud option may not be working #33

Closed rgillan closed 4 years ago

rgillan commented 7 years ago

Hi, On a RPi3 (haven't tested earlier versions) we have a range of I/O, both static and polled. One of our polled inputs was acting as if it was floating as we were detecting a simple proximity switch to ground. Any noise (or simply touching the lead) was triggering the poll detect.

rpio.open(7, rpio.INPUT, rpio.PULL_UP);

We found that declaring the input, followed by the pud assignment (no other code changes) has fixed the issue.

rpio.open(7, rpio.INPUT);
rpio.pud(7, rpio.PULL_UP);

Not sure if it's an issue but more in case someone else needs a hand. Will dig further once we get a chance.

jperkin commented 5 years ago

Did you get a chance to investigate this? There were changes to this code but I don't know if they were before or after your tests.

rgillan commented 5 years ago

Sorry, haven't tested in a while (our code uses the separate open/pud methods in sequence. If we get a chance to test again I'll update (it's been working well for a long time, so we haven't bothered to change anything)