Dan Fredell's
<http://danfredell.com/df/Projects/Entries/2013/1/6_DMX_Dimmer.html> 4
channel design uses a 20mhz clock
On Thu, Aug 25, 2016 at 1:01 AM, Jake <jake(a)spaz.org> wrote:
> send links along with claims like this
>
>
> On Wed, 24 Aug 2016, robb wrote:
>
> and
>> why do you need a 20MHz crystal?
>> apparently you need 20mhz for 4 stable channels when using the timer
>> method
>>
>>
Dear Sudo Room,
Here's your invoice! We appreciate your prompt payment.
Thanks for stewarding the commons!
Omni Oakland
------------------------ Invoice Summary --------------------------
Invoice # : 1419
Invoice Date: 08/25/2016
Due Date: 09/04/2016
Terms: Net 10
Amount Due: $2,446.00
The complete version has been provided as an attachment to this email.
---------------------------------------------------------------------
robb,
since we got the zero-crossing detection working, now it's a matter of
deciding how many lamps to control with a single arduino. I believe this
instructable shows software that doesn't rely on the chip's timer being
tied to the triac control pins, meaning that it could be used to control 8
or more triacs with a single plain arduino.
http://www.instructables.com/id/3-channel-Dimmerfader-for-Arduino-or-other-…
/*
AC Light Control
Ryan McLaughlin <ryanjmclaughlin(a)gmail.com&…
[View More]gt;
with slight modifications
*/
#include <TimerOne.h> // http://www.arduino.cc/playground/Code/Timer1
#define PINS 3
volatile int pinCount[PINS]; // make volatile to make available in interrupt
volatile boolean zero_cross=0; // Boolean to store a "switch" to tell us if we have crossed zero
int AC_pins[] = {3,4,5}; // Stup the pin numbers
int AC_dim[PINS]; // Holds Dimming levels (0-128) 0 = on, 128 = 0ff
int freqStep = 78; // Set the delay for the frequency of power (65 for 60Hz, 78 for 50Hz) per step (using 128 steps)
// freqStep may need some adjustment depending on your power the formula
// you need to us is (500000/AC_freq)/NumSteps = freqStep
void setup() {
for(int a=0; a < PINS; a++) { //set the pins to output
pinMode(AC_pins[a],OUTPUT);
pinCount[a] = 0; // keeps track of the time in the cycle
AC_dim[a] = 0; // dimming level set to zero
}
attachInterrupt(0, zero_cross_detect, FALLING); // Attach Interrupt to Pin 2 (interrupt 0) for Zero Cross Detection
Serial.begin(9600);
Timer1.initialize(freqStep); // Initialize TimerOne library for the freq we need
Timer1.attachInterrupt(dim_check, freqStep); // Use the TimerOne Library to attach an interrupt
// to the function we use to check to see if it is
// the right time to fire the triac. This function
// will now run every freqStep in microseconds.
}
void zero_cross_detect() { // function to be fired at the zero
crossing
zero_cross = 1; // set flag to tell dimming function zero cross has occured
} // End zero_cross_detect
void dim_check() { // Function will fire the triac at the proper time
if(zero_cross == 1) { // First check to make sure the zero-cross has happened else do nothing
for(int a=0; a < PINS; a++) {
if(pinCount[a] >= AC_dim[a]) { // Check and see if i has reached the dimming value we want
digitalWrite(AC_pins[a], HIGH); // Fire the Triac
delayMicroseconds(5); // Pause briefly to ensure the triac turned on
digitalWrite(AC_pins[a], LOW); // Turn off the Triac gate (Triac will turn off at the next zero cross)
pinCount[a] = 0; // Reset the accumulator
zero_cross = 0; // Reset the zero_cross so it may be turned on again at the next zero_cross_detect
} else {
pinCount[a]++; // If the dimming value has not been reached, incriment the counter
}
}
}
}
void loop() {
// This is simply making all outputs cycle through bright-dark, out of time with each other.
for(int i=0; i<127; i ++) {
for(int a=0; a < PINS; a++) {
int ii = i+42; //this is the bit that puts the blinking lights out of sync with one another
if(ii > 127) ii -= 127;
AC_dim[a] = ii;
}
delay(50);
}
}
[View Less]
He showed up at the previous Wednesday meeting.
I'm blocking this person's membership. He kept talking to us like we were
total noobs in running a hackerspace and he was going to tell us all how to
fix everything (though not taking on any tasks himself other than his
organizational LARP game idea). He kept trying to tell us about how
noisebridge is run even after I told him that we're no strangers to
noisebridge.
After reading some of his tweets I decided I'm just going to tell him he's
not …
[View More]welcome at sudo if I see him again. Let me know if anyone feels like
that's the wrong thing to do:
https://twitter.com/Xer0Dynamite/status/760708825934602240https://twitter.com/Xer0Dynamite/status/760710581926170624https://twitter.com/Xer0Dynamite/status/760711635363299329https://twitter.com/Xer0Dynamite/status/760714063710150656https://twitter.com/Xer0Dynamite/status/760717666256621569https://twitter.com/Xer0Dynamite/status/761043131710091264https://twitter.com/Xer0Dynamite/status/761043565447225344
And his twitter blurb about himself:
"...He comes from the future. Fought alone. Abandoned by the world I loved.
Silver bullets from the uber-mind. Suicidal without some pussy."
Here are his answers to member questions:
Why do you want to be a member of sudo room?: The people here are good and
want the place to succeed. I can save a well-staffed ship if it's sinking
or make it better engineered if it is not.
If you know already, what are you excited to do at sudo room?: Start a game
that will self-organize the many conversations that happen here.
If you know already, what are you excited to share with the sudo room
community?: One and the same as above, as the project is a LARP (think
Dungeons and Dragons crossed with Treasure Hunt), encouraging everyone to
play.
Have you ever been banned from another hackerspace? If so, when and why?:
No.
--
marc/juul
[View Less]
I'm looking for a non-LCD color video screen, somewhere between 5" and 8"
diagonal size. I guess 7" would be perfect.
I want to use it as the "dashboard" for my electric motorcycle. It will
primarily show the view from a rear-facing videocamera, but i'm going to
use an arduino to overlay information like speed and battery state onto
the picture, videogame style. I look forward to enclosing the back of the
CRT in transparent polycarbonate so that the yoke and other features are
visible.…
[View More]
i might have to use an LCD until i find the right CRT, but i think a CRT
would be ideal for reasons of class and style. But it has to be color.
if you know of a color CRT monitor in this small size range that's
available (for free ideally) please let me know. I am expecting composite
signal, but VGA would probably work too if i modified my signal plan.
thank you,
-jake
P.S. if you're interested in an antique vacuum-tube television, make me an
offer:
http://sfbay.craigslist.org/eby/atq/5739351649.html
[View Less]
> Consider yourself unwelcome in the sudo room space pending a formal ban.
Before you (Mark Juul, Morgan Allen, Lesley Bell) shoot yourself(ves)
in the foot, I implore you to listen with your reason, rather than
your reactivity. For example, there are no hackerspaces that are
really thriving, do you know that? Further, the level of analysis
needed to fix sudo-room's problems are not simple. I say this from
someone who's managed hundreds of thousands of dollars, can legally
call himself a …
[View More]Doctor, have the auspices of MIT, and has been watching
the movement from high above to ensure that it doesn't fail.
Sometimes trouble follows individuals not because they are guilty but
because they refuse to compromise in a system that DEMANDS it. (In
any event, you can sniff around further at
<linkedin.com/in/majanssen>.)
Hopefully, all of you took the time to read the important info in the
message (SUBJ: "Memberships") whereby I explained the complexity of
your explorations vis á vis the group known as Anonymous. Your
judgments are COMPLETELY inappropriate pending *actually* asking me
what my views are. Presumably, sudo-room doesn't require men to
desire male bodies EQUALLY to a woman's or to think that someone
DRESSING UP AS A GIRL has somehow magically acquired a uterus and all
the struggles that WOMEN have in this world. I mean really give me a
fucking break, because the word "inclusivity" can start to look
awfully like marshmallow fluff when you have a lock on your door.
(BTW, I will admit to having a preference on the M/F question). The
same issue is present with noisebridge -- they screen people who
silently match their political ethos/pathos. It's the kind deep and
dangerous delusion that Christians have when they believe they're
fighting for Jesus.
This isn't a criticism of them, for I understand the difficulty of
what I call REALITY (the street), but better to be trained and find
heuristics to TRANSFORM these experiences than become another
bourgeois hangout for (mostly) boys.
You don't look incompetent, you look inexperienced. I never thought
you were noobs, it's just that it would be very difficult to duplicate
the analysis that's been done to make hackerspaces self-sustaining.
It's akin to making a national _constitution_. You should consider
that before you go excluding potential members who have offered to
help.
And finally, consider the part of the profile in which you apparently
didn't have any problems or concerns: "suicidal". After the failure
of Occupy, many of us involved in trying to make a balanced world are
getting burned out. The pressures of living are high and the hopes
are not. Hackerspaces were supposed to act as refuge and sanctuary
for such fighters. But it is getting sidetracked by MEN who blow
their load in each other's mouths and WANT TAX BREAKS. You didn't get
it at all: I was called a fag in high school, so were my friends, who
were more punk than I was. I can make legitimate use of that word and
know far more about it than you who may just be looking to be
"politically correct". Perhaps your interest in humanity in a joke,
but it implies that there is at least one human who is on the brink of
ending his or her life.
If the aforementioned all jumped to on Juul's train of thought without
due consideration, then my analogy was more apt than I had planned:
you are like the rats congregating on that sinking ship.
Truth and Justice.
Marxos
> On Mon, Aug 15, 2016 at 7:20 PM, Xer0Dynamite <dreamingforward(a)gmail.com>
> wrote:
>
>> On 8/15/16, Marc Juul <juul(a)labitat.dk> wrote:
>> > sudo room allows ... ONE ... member to block the membership
>> > application.... ...You cannot become a sudo room member.
>> > There is no way to appeal this decision.
>> > (emphasis mine)
>>
>> Please take a moment to review your idea of memberships. I understand
>> your current policy as it is written. Are you aware that such a
>> policy amounts to a tacit dictatorship? (One person can decide the
>> fate of all future interactions.)
>>
>> Onto your other points. You decided to explore a little more than you
>> were told in the membership application and it got you into jumping to
>> some conclusions that aren't going towards truth (as you would
>> otherwise, reasonably, expect).
>>
>> The twitter account you mention has no face as it is a shared account
>> belonging to part of an activist collective called "Anonymous". More
>> to the point, it is a space for those with no voice, like those in
>> prison for crimes that your leaders do on an annual basis, the Native
>> Americans (who shouldn't be expected to learn how to use the internet
>> just to get justice). You apparently didn't wish to include those
>> tweets. The profile tag line that *I* had placed there was "So
>> transparent as to be invisible...." (and did not reference the female
>> directly). That is, in fact, how you found it at all. Unfortunately,
>> that tagline is no longer there. I'm still transparent, and you can
>> ask me anything you want, should you decide to use your freedom that
>> we've been fighting on your behalf for genuine inquiry rather than
>> forming premature conclusions that serve neither me nor the future of
>> sudoroom. We use this collective individuality as a counterpoint to
>> the adverse collective personality that you under one now called
>> "Annuit Coeptis" which you can find on the back of the US$1,
>> left-hand-side. That phrase is ancient Latin for "We are looking over
>> you" with the preposition "over" to imply, semantically, the notion of
>> parentship.
>>
>> To the point, if you wish to go over all the tweets on that account
>> one-by-one, we can do that, in the presence of your the sudo-room
>> polit-bureau, if you'd like. I will admit, for example, that I had
>> indeed tweeted that women should [collectively] stop sucking the cock
>> of the anti-Christ. You got me.
>>
>> As has been communicated on several occasions by Anonymous, anyone can
>> join this movement The membership application for the account in
>> question is much more simple. I just have to give you the password
>> and you are automatically in, there is no vetting process. ...But
>> judging from your message, I assume you wouldn't be interested. Am I
>> to understand, for example, that you have only seen the anatomy of a
>> woman through approved and vetted processes and mediums, yourself?
>> Please take a moment and reflect.
>>
>> The note on the profile that you *didn't* take into account that these
>> are missives from the "uber-mind". Perhaps it is unfortunate that it
>> makes reference to a part of the female anatomy in a manner of which
>> you do not approve. I, myself, did approve, otherwise I would have
>> removed it, and I further know the intentions of the person(s) who set
>> that note in the profile believes and *fights* for women to be equal.
>> How much have you yourself done that? (I should note that I cannot be
>> certain that only the one individual set that profile, such is the
>> nature of anonymity and aggregating activism.)
>>
>> I have to believe, for your sake, that your note was not sent strictly
>> with your own personality in mind, but also a result of a collective
>> consciousness in which you do not have complete control. Few do have
>> control. Between your diet, the medical system, and the law, pretty
>> much everyone has been p0wned.
>>
>> Towards some other points, I should attempt to reason with you on your
>> current decision. Sudo-room, in its present state, is financially
>> insolvent, has no business plan, has rent in the 10s of THOUSANDS of
>> dollars and is in the ghetto. You do have need to save your ship from
>> sinking. I am here on a raft shooting the flare that "I'm here". If
>> you wish to continue to captain that giant ship on your own, I have to
>> allow that. For that is my own personal policy: to allow others to
>> fail -- if, when given the options and consequences of error, they
>> choose to act on their own. Even then.
>>
>> Cheers,
>>
>> Mark,
>> aka Marxos, Captain Dynamite.
>>
>
[View Less]
