Ytai, I have no idea about the frequency thing I just used 50 randomly but the car was working ok, it could move but kinda slowly. Now I don't know what happened to the ioio the power led turns on just fine with both usb and external power. Something is indeed getting warm near the microcontroller but I can't tell for sure. It just can't get recognized
On my first post I have attached the schematic as an image. The .fzz file is from fritzing software. You want me to send something different? Τη Πέμπτη, 19 Φεβρουαρίου 2015 - 1:26:53 π.μ. UTC+2, ο χρήστης Ytai έγραψε: > > Thanos, Tux is right, PWMing the motors at 50Hz is not a good idea. > Measuring the voltage across the motors can be done using a voltmeter. > Since the IOIO doesn't work now, I would advise you as a first step to > disconnect as much as you can from it, plug it into a PC and see if the > power LED turns on and if anything gets hot. Also, try powering it > externally without USB and see if you have the power LED on. > Send you schematic as an image and I'll review it for any possible errors. > I don't know what to do with a .fzz file... > > On Wed, Feb 18, 2015 at 2:57 PM, Thanos Fisherman <[email protected] > <javascript:>> wrote: > >> How can I tell if I get 7.5V at the motors? Batteries are not fully >> loaded. And I Haven't tried 1000Hz. Right Now Another problem came up. I >> can't get ioio to be recognized from pc,android or bluetooth. wtf happened >> now? it used to be ok >> >> Τη Τετάρτη, 18 Φεβρουαρίου 2015 - 11:42:55 μ.μ. UTC+2, ο χρήστης Tux >> Leonard έγραψε: >>> >>> Can you use a frequency around 1000Hz or more? >>> Are your batteries fully loaded? Do you get 7.5V at the motors when duty >>> cycle is 1. >>> >>> 2015-02-18 21:57 GMT+01:00 Thanos Psaridis <[email protected]>: >>> >>>> Hey Tux I have a slider that starts from 0.0 and reaches to 1.0 duty >>>> cycle but motors can barely move to duty cycles below 1.0 as for the >>>> frequency it's fixed to 50 >>>> Στις 18 Φεβ 2015 10:46 μμ, ο χρήστης "Tux Leonard" <[email protected]> >>>> έγραψε: >>>> >>>>> What PWM duty cycle and what frquency are you using? >>>>> >>>>> 2015-02-18 19:36 GMT+01:00 Thanos Fisherman <[email protected]>: >>>>> >>>>>> Cheers Ytai, >>>>>> >>>>>> 1. I have attached the schematic file >>>>>> 2. I think I am already doing that? >>>>>> 3. I'll look into it. Do you have any of these breakout boards in >>>>>> mind? Something like this <https://www.sparkfun.com/products/9571> >>>>>> maybe? >>>>>> >>>>>> Τη Τετάρτη, 18 Φεβρουαρίου 2015 - 6:08:45 μ.μ. UTC+2, ο χρήστης Ytai >>>>>> έγραψε: >>>>>>> >>>>>>> 1. This format is not easy to read. Consider posting a schematic. >>>>>>> 2. Connect pin 8 of the driver to Vin rather than 5V. >>>>>>> 3. Use a smaller breadboard or a perf board. Alternatively, there >>>>>>> are motor driver breakout boards from various vendors (e.g. pololou, >>>>>>> sparkfun) that you can wire to the IOIO pretty easily. In some cases >>>>>>> you >>>>>>> might be able to do most of the connections by simply soldering female >>>>>>> headers on the IOIO and make headers on the driver board and mount it >>>>>>> directly shield-style. >>>>>>> On Feb 15, 2015 8:50 AM, "Thanos Fisherman" <[email protected]> >>>>>>> wrote: >>>>>>> >>>>>>>> Hey folks finally I made my first ioio car. >>>>>>>> I bought this <https://www.sparkfun.com/products/12090> chassis >>>>>>>> from sparkfun which seems really nice and solid however I need some >>>>>>>> tips: >>>>>>>> >>>>>>>> 1. Is my circuit correct? Check out my attached schema >>>>>>>> 2. What Can I do to make it move faster? It's slow as turtle >>>>>>>> 3. What can I do to make the whole thing more compact? With less >>>>>>>> wires? is there any ioio shield like that dude is using here >>>>>>>> <http://youtu.be/mi6P9pIBYyw>? >>>>>>>> >>>>>>>> -- >>>>>>>> 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. >>>>>>>> >>>>>>> -- >>>>>> 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. >>>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to a topic in the >>>>> Google Groups "ioio-users" group. >>>>> To unsubscribe from this topic, visit https://groups.google.com/d/ >>>>> topic/ioio-users/l6miy4riKbY/unsubscribe. >>>>> To unsubscribe from this group and all its topics, 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. >>>>> >>>> -- >>>> 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. >>>> >>> >>> -- >> 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] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at http://groups.google.com/group/ioio-users. >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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.
