I finally got those 5 relays working.! For some mystery reason these (5) must be controlled in open drain mode, while the others (11) work in normal digital output mode. BUT: open drain mode does not work in pins 31-46, I changed i to use pins 6,10-13 and now everyhting is ok. Is it so that open drain mode is functional only in "circle" pins (that are also 5V tolerant) ? I think that all 16 relays work in open drain mode, but there might not be enough open draiin capable pins
sunnuntai 6. joulukuuta 2015 1.26.12 UTC+2 Tyler kirjoitti: > > Hi, > > It sounds like you'll need to do some troubleshooting to determine if the > problem is with the IOIO or the relay board. Based on what you've said, it > sounds like your IOIO may be at fault. Verify that the IOIO is actually > delivering the 3.3v on the pins with non-functional relays. You might also > try switching the pins around: take a pin that is known to be working on a > good relay and switch it to a non-functioning relay to see if the relay > works that way. You might also try switch each relay individually to see if > they work when the IOIO is just running one of them. > > If you can determine that the problem does indeed lie with the IOIO, we > can help you further. It may help to see the code you're using to control > the relays in that case. If it's a problem with the relay this forum can > offer general electronics advice, but we may not be able to help with your > specific relay board. > > Good luck! > > On Saturday, December 5, 2015 at 11:17:53 AM UTC-5, [email protected] > wrote: >> >> Hello ! >> >> I have 16 relay module that I want to control with IOIO. I know that this >> is not IOIO problem, but is there anything I could do with IOIO digital i/O >> (or hadware). >> >> >> http://www.aliexpress.com/item/2015-China-Wholesale-12V-16-Channel-Relay-Module-for-arduino-ARM-PIC-AVR-DSP-Electronic-Relay/32305996877.html >> >> >> I have connected this to 16 pins in IOIO and defined the pins as digital >> output. 11 of the relays work as expected, but 5 relays do not react to the >> IOIO 3.2V signal going up or down. >> However if I shortcut those 5 malfunction pins in relay module to ground, >> the relay reacts as expected ! >> When the relay control pin is connected to IOIO, the relay is always on, >> but does not go off for IOIO signal >> >> I have tried to define the digital outputs also as "open drain"-mode, but >> no success. >> Is there anything else that I could do (other than buy a new relay >> module) ? >> > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
