Aligor Bot, Seems like it would work to me. I only gave it a cursory look, but it looks like that chip will allow you to sacrifice a few pins (2-4 depending on your setup) for 16 GPIO pins. However, it has the same current limitations as the IOIO (25 mA / pin), so you can't use it to drive a motor directly, you'll need to use a motor controller circuit between the Tri-Bot and the chip.
Just a question though, what are you planning to do? There are over 40 pins on the IOIO OTG that can be setup as GPIO. So, this chip combined with the IOIO would give you ~52 available GPIO pins, which is a ton (plus you still need another circuit to handle the current draw for the motors)! Good luck! Tyler On Thursday, October 1, 2015 at 7:52:32 AM UTC-7, Ailgor Bot wrote: > > Hi all, > > I'm wondering if it's possible to add pins to our IOIO-OTG ? > with something like MCP23017 or other ? > > I have get a TRI-BOT WowWee, and I would like to control it with IOIO-OTG ? > I am not sur I will have enough pins.... > > Thanks in advance for yours replies > > > > -- 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.
