I am sure those motors can take straight 7.5V, and that's probably what they get from the motor driver anyways except in pulses modulated by the duty cycle or PWM width or whatever. You should definitely get a cheap multimeter so you can check voltages and connectivity of soldering joints etc, otherwise you won't be able to debug your hardware builds.
I have one IOIO from Sparkfun and one from Seeedstudio. As far as I can tell they are functionally identical. I did have to update the firmware on both. Seeedstudio is cheaper for me so I would buy another one from them. One thing I have discovered that wasn't obvious - I soldered female headers onto my IOIO boards. I use these for multiple projects and will often unplug a board from one adapter and plug into a different one. I am concerned that the female sockets may eventually wear out. If I could have a do-over I would have used male headers on the IOIO. I guess I could clip the female headers off and unsolder/rework it if I had to but its a lot of trouble, and my mating boards are opposite gender. On Sunday, March 8, 2015 at 1:59:11 PM UTC-5, Thanos Fisherman wrote: > > wow Thanks so much Bill for all that info that second shield seems > interesting I might give it a chance along with my next ioio purchase (my > current one is dead now). > In case you haven't seen it this is the chassis I'm using from sparkfun > here <https://www.sparkfun.com/products/12090> and yes it has geared > motors however I'm not sure how many volts they can handle before I hook > them straight to my power source. The batteries are 7.5V but I believe they > can handle up to 9Volts although im not sure whatsoever. Anyhow I'm going > to equim myself with a multimeter and a better breakout board like this > one <https://www.sparkfun.com/products/9457> > > P.S Is the ioio board from seeed studio any better in terms of quality > than the sparkfun one? I have many local sparkfun distributors here in my > country which I can buy ioio from but no seeedstudio ones. So for > seeedstudio I'll have to buy directly from china and pay import taxes > -- 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.
