[sudo-discuss] vending machine is working!

[Adam Munich]

try http://www.falstad.com/circuit/, it's what I use when designing
analog filters / simple signal stuff

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Weblog: http://adammunich.com
Cell: +1-650-452-0554, M-F 10a - 8p PST

PGP Public Key: https://pgp.mit.edu/pks/lookup?search=adam+munich


On Thu, May 19, 2016 at 12:54 PM, Jake <jake at spaz.org> wrote:
> i'm trying to think of the right way to generate a 5-10 volt 32KHz
> squarewave in series with the 12v power supply for the motors, so that an
> analog input can measure the amplitude of AC detected across a series
> resistor.  The homing switches of the motors have a capacitor that decreases
> their impedance at 32KHz when they're "home".
>
> the control circuit for the motors is a row/column array, so I also need to
> lay that out.
>
> #define NUMROWS 5
> #define NUMCOLS 10
> byte rows [NUMROWS] = { 13,12,11,10,9 }; // connect rows to positive
> byte cols [NUMCOLS] = { 8,7,6,5,4,3,2,A2,A3,A4 }; // connect cols to
> negative
>
> -jake
>
>
>>>> On Thu, May 19, 2016 at 9:18 AM, Morgan Allen <morganrallen at gmail.com>
>>>> wrote:
>>>>>
>>>>>
>>>>> I have ESP8266 dev boards to donate!
>>>>>
>>>>> On Fri, May 6, 2016 at 7:50 PM, Jake <jake at spaz.org> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>> as I said in February, the vending machine is basically at operational
>>>>>> status:
>>>>>>
>>>>>> https://sudoroom.org/pipermail/sudo-discuss/2016-February/011770.html
>>>>>>
>>>>>> and as I said in April, I now know how we will perfect the motor
>>>>>> homing
>>>>>> issue:
>>>>>>
>>>>>> https://sudoroom.org/pipermail/sudo-discuss/2016-April/011894.html
>>>>>>
>>>>>> but for now, it works well enough that I was able to dispense one of
>>>>>> the
>>>>>> candy bars in the machine without cheating and opening up the machine.
>>>>>>
>>>>>> I didn't even need to power cycle it, the beaglebone in there was just
>>>>>> up
>>>>>> and working already!
>>>>>>
>>>>>> thanks to rcsheets who stocked the vending machine with delicious
>>>>>> candy
>>>>>> bars!  products 1030, 1031, and 1032 by the way
>>>>>>
>>>>>> let me know if you want to help get the vending machine working
>>>>>> better.
>>>>>>
>>>>>> we need simple hardware work, complex hardware work, and software
>>>>>> work!
>>>>>>
>>>>>> -jake
>>>>>> _______________________________________________
>>>>>> sudo-discuss mailing list
>>>>>> sudo-discuss at lists.sudoroom.org
>>>>>> https://sudoroom.org/lists/listinfo/sudo-discuss
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
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>>>>>
>>>>> _______________________________________________
>>>>> sudo-discuss mailing list
>>>>> sudo-discuss at lists.sudoroom.org
>>>>> https://sudoroom.org/lists/listinfo/sudo-discuss
>>>>>
>>>>
>>>
>>
>