alphaomega
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There's a short entry on the STC-1000+ WIKI about modifying the STC to use SSR's instead of the relays.
Thanks, I have ordered one from this vendor.
2 questions What version did you add the profile running dot and how do I determine what profile I'm running? I think I'm running a profile but there is no profile dot onI don't think there is.
But the two dots on the far left is heating/cooling as expected. The third dot is lit when a profile is running if I remember correctly. The upper dot between the two large 8's is lit when viewing temp probe 2 (if two probe firmware). The dot next to the C (and the C if celsius version) is lit when a temperature is displayed. That's about it.
I want to jump in and start a profile on SP3 instead of going through all of the other steps.How do I do that?
2 questions What version did you add the profile running dot and how do I determine what profile I'm running? I think I'm running a profile but there is no profile dot on
Doh! I swear I wasn't even drunk when I trying it before.
How long until I can control my STC1000+ from my phone?
Just kidding but how's the interface with the ESP8266 going?
@hidara: You'd have to do some coding to make the changes you need. It does not support minutes as is.
Cheers!
// Control RH every 7.5 min
if(millisx60 >= 7500){
control_rh();
millisx60 = 0;
}
https://github.com/matsstaff/stc1000p/commit/7157df8ad847b41795695c53efdc3f6eb547e391I bought this on ebay Module Atmega328 5v 16M+USB2.0 To TTL 6Pin CH340G Converter F Arduino Pro Mini.
http://pages.ebay.com/link/?nav=item.view&id=191146731721&alt=web
I'm going to take a stab at flashing a stc1000 controller that I purchased following the github's instructions. Sorry if it's a repetitive question: how do you put them together? If someone could point me to directions or a diagram even a picture of one I would greatly appreciate it. Thanks in advance
Dave
I have made it through 77 pages and did a search of the thread without seeing the answer. I am looking to implement the flow meters for raspberry pints. They use an alamode for the interface to the flow meters. Will this work to program the stc. Does anyone know what the pin layout will be? This is all new to me but it looks very strait forward with all the excellent directions/videos but the different adruino implementations are foreign to me.
I need to increase the temp 15 deg over a 30 minute period and hold for x amount of time.
Hi!
I'm very pleased to announce the inital release of my project for the last few weeks, STC-1000+.
I have reverse engineered the STC-1000 and reprogrammed it with new firmware that is specifically made for beer fermentation. What that means is that I have added possibility to run temperature profiles (i.e. change setpoints at given times). And yes, I have also made it possible to use Fahrenheit scale (why anybody would want that beats me, but as I understand that is a pet peave for you guys).
Moreover, as I realize most of you (including myself) dont have the programmer needed to perform the upgrade, I have designed a sketch targeted for the Arduino UNO, to do the actual flashing of the firmware. All you need (in addition to the UNO) are a few pieces of wire (and maybe some soldering skills, I guess you could use hot glue or tape or something in a pinch).
It is all released as open source, so feel free to modify, but please contribute if you can.
Now, here's the downside, I've been working my ass off on this project for a week or two now and finally have something to present, but it is not 'done' yet. It is not production ready so to speak.
I would like all the help I could get, please try it if you can and report bugs. Don't try it on beer though, if you do and fail, don't blame me.
Also, the code running on the STC-1000 is protected, that means, once you reprogram, you cant go back. They are pretty cheap though...
If you are experienced in PIC programming, please have a look at the code. I would consider myself experienced in embedded programming, but not so much towards the Microchip line of MCU's.
With the source I provide, it is also possible to repurpose the the STC-1000 pretty much any way you'd want if you are cool with some coding. It could be a PID for example if you exchange the relays for SSRs. The PIC fairly puny though, so you will need to be careful when coding, especially RAM is very tight.
The firmware I provide, features 6 programmable profiles, 10 setpoints each with 1-999 hours between setpoints. You can also set hysteresis, temperature correction offset, cooling delay, you can change current step and duration in the running profile and you can set current setpoint, finally you can choose and run profile or simply thermostat mode.
Right now programming is made by sending the HEX file through the Arduino usiing a serial terminal emulator that supports sending files (I use CuteCom in GNU/Linux). But once I reach something that I feel is good enough I'll provide the option to embed the HEX in the sketch and you'll just need the Arduino IDE to (user friendlier to the non-developer).
The programming header ont the STC-1000 is a bit difficult to reach from the top, you might have better luck on the bottom of the board. I have provided a picture of my dev board, but in it I have already soldered in a pin header.
So, again, if you can, please contribute and maybe soon enough everyone can run a slightly better STC-1000.
Lastly, documentation is suffering right now, I'd like to improve it as well, but I feel like I want to get this project 'out there' as soon as possible.
Find the source here.
Cheers!
//Mats
Edit: Update 04-04-2014, v1.00 now released. This is the first version that should be good enough for actual use
Edit2: Update 06-22-2015, there has been a lot of progress to this project.
Most notably Will Conrad has tracked down the manufacturer of the STC-1000's with the correct hardware version. They are manufactured an sold by HongKong U-control electric CO Ltd. They have a store through AliExpress where you can buy individual units.
Check out the github project page for more info on the project.
@dave-s : Hi! Cool
How have you hooked up the pump? Since you are asking about PO output, I'm guessing you have it hooked up through one of the relays?
The firmware does support controlling a pump, but the signal for controlling the pump is not through the relay. The relays are for controlling heaters.
The pump control signal can be found on the back near the tempprobe terminal.
Read this part and I hope it makes it more clear.
Cheers!
It is the one unpopulated pad right next to the tempprobe terminals.
The board is actually prepared to house a three pole terminal, but only two are used, so for pump control, the third (and normally unused) one, comes into play.
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