SS Controller

[Duniek]

hey
this is my first controller
PARTS:
-122x32 graphic lcd(2x16 size) (green or blue backlight)
-3x temp sensors (evap, condenser, compressor)
-3 buttons keyboard (menu on/off, +up, -down)

FUNCTIONS:
-animated intro :cool:
-Starts compressor when you press of pc button
-Starts PC at the temperature we have set (-40 to -10*C)
-Stops the compressor 5-10seconds after shut down the pc
-Safety temp for evap (-20-0*C) [?]
-Safety temp for compressor (I think +80-120*C) [?]
-fan speed depend of temp on condenser (now i dont have idea of set it)
-working time
-screensaver
-melodies maybe lol
-all values you can save

http://img75.imageshack.us/img75/7326/45455281re0.jpg

I will add movie later

controller is still in progress, so please post your comment, opinion, and what options should be add or changed (especially boot, safety temperatures)

regards
first movie
http://pl.youtube.com/watch?v=aE1DDs-GEwE

[jinu117]

I think I am tired of trying to figure out how ot install LM35. Let's go K-type :)
Also, rather than over featuring, what I think is really necessary is easily mass produceable cost effective controller that everyone can put on.
What I've seen typically are trying to take too much at first shot tend to cause problems after problems.
Even vapochill Controller which has been in market for a while seems to have VERY HIGH failure rate which can't be a good thing.

[rogard]

configurable power on/off delay and a tray app for the temp are all on my wish list :)

It would also be nice to have an override for temp shut offs. For example
if -20 was your shut off temp lcd display says something like "overtemp..shutting down..overide..yes?.no.?"
obviously if you do nothing it should just shut down.

[tim-]

rogard:
I hope you are joking, how about if you arn't there?

if the unit doesn't handle that load below the specific temp maybe you should set the safety temp a bit higher?

maybe a warning 3-5K before reaching the safetytemp should be an idea.

regards
Tim

[[XC] gomeler]

I know you asked us not to ask for features and stuff but I'm just going to pose a possible idea to consider. A simple speaker that'll scream bloody murder if your system reaches evap temps that are considered a "crash" ie temps reach your cut-off point. Just something to consider, would be a cool feature but perhaps a bit too difficult to implement, component-wise. Jinu has it right though, simplicity is key which is why I like the Freeze Pack over the VapoChill/MachII controllers.

[gosmeyer]

rather than over featuring, what I think is really necessary is easily mass produceable cost effective controller that everyone can put on.
Why, Aren't those already available?
Besides not everyone wants to mass produce. I like the thought of different options.

[rogard]

rogard:
I hope you are joking, how about if you arn't there?

if the unit doesn't handle that load below the specific temp maybe you should set the safety temp a bit higher?

maybe a warning 3-5K before reaching the safetytemp should be an idea.

regards
Tim

I have had a faulty lm35 in the past and it was a real pain when it shut down prematurely, especially when I was doing work.

An overide would actually let you get into windows to change the temp, if buttons were not easily avalible and the unit was hitting the safe temp.

Having the option to overide I actually though wasn't a bad idea :shrug:
as long as the unit continued to shut down if there was no user input.

It was only a suggestion? and personally I found your wording a little harsh :(

I hope you wont mind if we leave the judging of the ideas to Duniek

[AliG]

would be nice if someone would mass produce a cheap controller though, there are plenty of people like me that are building a phase as cheap as they can do to budget and can't afford the controller. Plus there's more money in it for them if they decide to mass produce the basic versions and then slap a slightly higher price tag on their uber versions

[Duniek]

sensors used in controller are dallas DS18B20
<-55*C - +120*C>

I testing it for one week
I didnt finish all functions, but untili I dont order special PCB for it I will test it

This controller will be cheap and simply and user friendly

speaker will be included, so when evap has "high" temp
you will hear "bloody murder alarm" or sth like that

[AliG]

can you pm with a price range?

[runmc]

Simple to keep cost down - reliable - with k-type probe. :up:

[HoriWanderFuLL]

I like the Alarm idea Gsmaster has put this feature into his controller..it is a God Sent when running benchmarks and your away from the Pc..

Gives you the option to re adjust setting or shut down the benchmarking program..or just sit n watch n hope it finishes before Pc gets Shut down ehe

Hori

[piotres]

@Duniek : COMPRESSOR not COMPRESOR ;)

when You plan to show final version ?

[Duniek]

Simple to keep cost down - reliable - with k-type probe. :up:
yeap, I want use it, but I don't know k-type probe resistance characteristic
(I will use atmega 8 processor)


I like the Alarm idea Gsmaster has put this feature into his controller..it is a God Sent when running benchmarks and your away from the Pc..

Gives you the option to re adjust setting or shut down the benchmarking program..or just sit n watch n hope it finishes before Pc gets Shut down ehe

Hori

I have few movies with it, and one with alarm
but movie has 20mb and my pc is too slow to compress it :p:

if temp is too high and still going up, computer will be automatic shut down

bcoz when temp is high, system will be "freezing" or show BSOD ot sth


@Duniek : COMPRESSOR not COMPRESOR ;)

when You plan to show final version ?
yes i know
this is beta version 0.01

[jinu117]

Duniek, I have bunch of PDF regarding thermocouple piled here as well as some notes.
Basically, it doesn't go by resistance. It goes by mV thermocouple generates and amplifies it and read the voltage (A/D conversion to micro processor) and use either table or equation (table would be easier for our pupose with some interpolation) to translate that into temperature.
The real hard part of circuit on this is to be able to amplify such small signal with good noise filtering and compensate for ambient temperature of meter (which can be done by putting reference junction in circuit)
Or we could always cheat and use chip that is designed to do that (about $9 a piece and even in qty, it only goes down to $5 I believe and qty means probably 500+) Typically most thermometer we use multiplexer to reuse single amplifier and A/D to read multiple port (more expensive meter does it separate for each input... I believe the reason why UEI, etc always reads temperature sort of balanced in between 2 probes). In our case though, it should suffice I would think since we don't have to grab data that frequently.
Now, that was mouthful wasn't it?
If you want some pdf information, send me your e-mail through PM :)

[SexyMF]

Simple to keep cost down - reliable - with k-type probe.

K-type probes are expensive and not nearly as accurate as everybody seems to think. Especially K-type which are not low temperature probes. To gain any proper accuracy you need expensive supporting ICs and correct PCB layout.


All applause to those making controllers. Good work.


That DS18B20 isn't accurate to show 0.1 steps as eluded to in your picture.

Stand-alone hardware is always better than something which requires a computer interface.

[kayl]

yeap, I want use it, but I don't know k-type probe resistance characteristic
(I will use atmega 8 processor)



I have few movies with it, and one with alarm
but movie has 20mb and my pc is too slow to compress it :p:

if temp is too high and still going up, computer will be automatic shut down

bcoz when temp is high, system will be "freezing" or show BSOD ot sth


yes i know
this is beta version 0.01

just upload the hole thing ;) they compress it for you.
The bigger the file you send the better the video quality.

Controllers look interesting :yepp:

[PhilippF]

I already posted this a while ago, but maybe it will help you with the probes:
<see attached pdf>

K-type probe dont have a "resistance characteristic" as they do not change resistance, they generate a very small voltage. As far as I know it is very complicated compared to a NTC or PTC or PT100 or PT1000 to read an exact temperature.

And btw: Very nice work!

And btw #2: I also prefer stand-alone solutions above everything that needs software on the computer

Regards,

Philipp

[Duniek]

@Jiny117
thanks very much for a lot of info about k-type

@SexyMF
normally its show 0,5 steps but you cant cheat a sensor :D by software
computer software isnt nessesery

@kayl

link to movie I added in first post

@ PhilippF
yea
PT1000 is the same price as cheapest K-type
and PT1000 is easier to configartion on software

btw maybe I will add
chart of temp/time on whole lcd area :D

[Unknown_road]

there should be charts about thermocouple voltage somewhere on the web. Just search through datasheets

[Duniek]

movie 2 - sounds (http://pl.youtube.com/watch?v=J0_OJejx-mw) :p: :p: :p:

[jinu117]

Yeah I was chuckling myself when I was watching that video haha.

[tim-]

funny detail :)

I like it.

[Pete]

Nice one Duniek. K-type i think has to be done.

[runmc]

I mentioned the k-type probe because it is easy to drill a hole in the evaporator and stick the bead probe into it to get a good temp reading and a secure fit. You can also tape the bead probe to the side of the evap and it will lay flat and stay secured fairly well. This is the type probe I am looking for.

If there is a cheaper probe on the market that is similar to the bead probe that can be used that is less expensive that the k-type probe - this is all the better.

Nice controller :up: Can we make song dedications? :party2:

[killermiller]

That Looks really good. Show us the blue :)

[Duniek]

@ runmc and Pete
I have some pdf about K-Type from Jinu117 and big thanks for him for that
but I will use dallas still bcoz its cheaper,easier and enough for SS

I test it today and it works very good :D
last thing to do
is fans controll
and making names for function , any advices :D?

[tim-]

I like the iChill we talked about earlier :)

[killermiller]

Then Apple will come and say that you copied them.

[Duniek]

@ Tim-
:P
I mean called a single functions
no name for controller

iChill is good but I am finding better name fot it

[tim-]

name them in polish :) that will make it little more difficult :)

[Fujimitsu]

Nice job man, liking all the features. I gotta learn how to do this type of thing.

[Duniek]

http://img91.imageshack.us/img91/8338/84228431du6.jpg
http://img91.imageshack.us/img91/8709/14339038tf3.jpg

http://img515.imageshack.us/img515/8381/50066169fp5.th.jpg (http://img515.imageshack.us/my.php?image=50066169fp5.jpg)http://img405.imageshack.us/img405/4554/19729594lx9.th.jpg (http://img405.imageshack.us/my.php?image=19729594lx9.jpg)http://img405.imageshack.us/img405/9420/86233621ex7.th.jpg (http://img405.imageshack.us/my.php?image=86233621ex7.jpg)
http://img240.imageshack.us/img240/2361/29251739ny4.th.jpg (http://img240.imageshack.us/my.php?image=29251739ny4.jpg)http://img240.imageshack.us/img240/8518/64388195yi4.th.jpg (http://img240.imageshack.us/my.php?image=64388195yi4.jpg)http://img107.imageshack.us/img107/2005/22858394zh6.th.jpg (http://img107.imageshack.us/my.php?image=22858394zh6.jpg)

//EDIT
BACKLIGHT (http://pl.youtube.com/watch?v=5tn94WTgraI)

[teyber]

wow.....

holy crap! those are so nice!
check pm's

[tim-]

looks good :)

but I would put all connectors in the top of controller to prevent the issue with fitting a condenser below the controller. this 'cause most of us is using those for SS case and space between condenser and display is tight in some situations.

[Duniek]

this is prototype

controller tested in 90&#37;
all bugs solved ;)

in final version I wil add funciton of fans speed depends on temp of condese
and conectors will be better looking

[runmc]

Congratulations :up: :clap:

[tim-]

sounds good duniek :up:
one thing that just got in my mind,
I guesss the connectors for connecing lcd and powerboad together is placed where they are for some reasons, put those connections on backside of lcd instead?

I don't like when they are in the bottom of controller, hard to fit together with some condensers (for example these deluxe condensers from cold_ice) together with regular SS case (LD, vapo, mach, cold_ice) etc, the lcd fits but not with the connectors pointing down. I've solder those controllers I got premade to make it fit proper.

regards
Tim

[Duniek]

thx runmc :)

@ tim-
it will not be on backside but I have another idea and you can put dlx condeser under lcd
it will be works good, dont afraid about this ;)

btw
automatic fan speed regulation is done <4-12V>
steps for ~0.1V

it will be hold temp of condenser (outlet) @ 35*C I think it will be good

[tim-]

make the outlet temp adjustable ;)

[Duniek]

new batch of better PCB's :D
http://img503.imageshack.us/img503/249/ss11ja6.jpg

[Moc]

Wow Duniek you are an amazing guy!
COntrollers, Evaps, Ln2 Pots... made by Duniek.

[[XC] 2long4u]

Simple to keep cost down - reliable - with k-type probe. :up:

Why doesn't under the ice have a simple temp display?

[Duniek]

Wow Duniek you are an amazing guy!
COntrollers, Evaps, Ln2 Pots... made by Duniek.
:yepp: :D


Why doesn't under the ice have a simple temp display?

bcoz I love graphic lcd :D
every owner can order cutom 122x32 logo on it :D
first pcb for my use
sorry for soldering quality, i solder it quick and now (2:30-3:00am) by my self

next bunch off pcbs will be making in profesional workshop ;)

http://img187.imageshack.us/img187/5585/11eu6.jpg

[Duniek]

FAN regulation still in progress

fan speed depend of condensrorr temp (outlet)
I set 32*C as optimal temperature

[killermiller]

What is the maximum currend draw from thos fan headers?

[Duniek]

What is the maximum currend draw from thos fan headers?

:confused: dunno agian what did you mean but

max A with fan you can put in controller is 1,3A

[killermiller]

So a 12 volt can can be 15 watts?

[Duniek]

So a 12 volt can can be 15 watts?

yes

edt: even 3-4A fan :D but then you must add a heatsink @ mosfet

today I run it again wihtout load
and I saw it :eek:
http://img339.imageshack.us/img339/5054/568lh5.jpg

:yepp:

[n00b 0f l337]

Damn too bad you live all the way so far away.

[killermiller]

What kind of warranty against defect do you offer?

[Duniek]

@NoL
uei shows -56,4 in the same time

@killermiller
mean @ amperage on mosfet ?

sholud be better if max will be 1,5A
I use now 1,3A fan and its enough (even 0,8A fan @ 12V is enough for 230W)and mosfet has little piece of alu on it and temp of mosfet is warm

[teyber]

What kind of warranty against defect do you offer?


@NoL
uei shows -56,4 in the same time

@killermiller
mean @ amperage on mosfet ?

sholud be better if max will be 1,5A
I use now 1,3A fan and its enough (even 0,8A fan @ 12V is enough for 230W)and mosfet has little piece of alu on it and temp of mosfet is warm

i think he means if it doesn't work will you send a new one?

p.s. nice avatar:up:

[killermiller]

If it breaks will you replace or repair? If so how long will do that before you say buy another?

[Duniek]

p.s. nice avatar:up:

:p:


If it breaks will you replace or repair? If so how long will do that before you say buy another?

yes
but I will guarantee 1,5A max in specs ;)
so when you burn it this will be mechanic damage, so you mst buy new mosfet then

[killermiller]

What if another part of the controller dies?

[Duniek]

What if another part of the controller dies?
NO possible until properly use :cool:

but if, you send to me and i will replace it
after diag ;)

[killermiller]

Forever?

[Duniek]

Forever?

no possible lifetime I guess
but this isn't crappy stuff
so I think I can give 1-2 years warranty

what do you think guys?

[teyber]

no possible lifetime I guess
but this isn't crappy stuff
so I think I can give 1-2 years warranty

what do you think guys?

I would say 1 year, but i would give a DOA (defective on arrival) warranty... Im sure these controllers are great, but you have to remember how many problems people have had with all controlers, which i have noticed has caused a decrease in the use of them. hey check pm's.

p.s. can't wait to see these babies in action, i think the only real warranty you need is to guarantee that they work when they arrive.

Regards

[killermiller]

I was kidding about forever. I guess any warranty would be nice. It is ultimately up to you. I really like them though.

[Duniek]

in specs this sensor shows min temp @ -55*C
I read some forums, and one guy test it on dry ice and his "controller" shows -65,0-65,1*C and no more low temp (even he has -80 @ profesional thermo)

minimum temp as I can saw is -65,2*C (but I wasnt enought reaction and late, so pics with 0,1*C higher temp :(
http://img166.imageshack.us/img166/2389/recordwk3.jpg
when i have -60,0 on LCD controller
I have -59,6*C @ uei DT200
i dont check lower bcoz battery in UEI died :(
soon I try to make pisc with uei

next step I try to build cascade and test sensor at about -100*C temps ;)

[kayl]

nice work mate ;)

[Big SturL]

Great work Duniek! Makes me interested in phase again! Just have to wait 10 years and save up $5000 for proper tools.

[ruffus]

really nice work i have a controler from under the ice but i think i might have to get one of these could you pm me with some prices

[Duniek]

for all interested

i have a few personal problems now
so cant finish work now

controllers will be ready on first week on february
I hope

[Duniek]

american style :D:D:D

http://img167.imageshack.us/img167/5553/tnimg0026jw8.jpg

[n00b 0f l337]

American style?
Whats that supposed to mean.

[tim-]

adam:
american car = large
american pizza = large
american burger = large
american coke = extraextralarge
american phase unit = large

and this:
check display.. not 16x2.. more like 320x240 lol


lol

[Duniek]

adam:
american car = large
american pizza = large
american burger = large
american coke = extraextralarge
american phase unit = large

and this:
check display.. not 16x2.. more like 320x240 lol


lol

this is that what I am talking about :p:
once I order some stuff from one guy from California and in box with screws I saw it (on left american clip, on right polish or european)
LOL
http://img139.imageshack.us/img139/4309/tnsssgn5.jpg

this lcd is 400x160 pixels :D
(in my normal controler i have 122x32 pixels)

[Duniek]

comparasion with standard LCD which I mount in my controllers
http://img502.imageshack.us/img502/6638/tnimg0099fx7.jpg
http://img441.imageshack.us/img441/8237/tnimg0066uk6.jpg
http://img528.imageshack.us/img528/9910/tnimg0075lg0.jpg

[teyber]

YES!

no need to say anything else really. That is awsome!!!

[tim-]

duniek goes american :up:

[killermiller]

Now it just needs to be color :D

[n00b 0f l337]

Okay coming from the phasers with greater then 1hp rotary singles you can't make fun of large ;)
~Adam

[{.bLanK} GoD]

Texas styles.
That's awesome.

[Duniek]

http://img520.imageshack.us/img520/6730/controllersro9.jpg

[ruffus]

that is a wicked screen can't wait till i can afford one just have to save the cash but can't wait

[Pete]

Okay coming from the phasers with greater then 1hp rotary singles you can't make fun of large ;)
~Adam

Yeah we can. Fat of the lands!!!! Go Duniek, i like the obeas lcd and im in the UK.

[Duniek]

one controller is in customer ,I hope reviev soon

btw
controller with big lcd is testing by profesionalist
http://img91.imageshack.us/img91/9074/tnimg0029yr1.jpg

[Pete]

LMAO Duniek you make my day dude. I might well have to give one these USA style units a good look over

[Noob-ftw]

LOL, your cat is so cute.