topbanner.gif
Login
Username

Password




Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Shoutbox
You must login to post a message.

JackH
12-11-2018 02:00
Welcome R3giN47d47

JackH
12-11-2018 01:58
welcome2 HimalayanRoaster

JackH
12-10-2018 08:11
Welcome xboarder

JackH
12-09-2018 21:50
welcome2 Okiesniper

JackH
12-09-2018 21:50
Glad to have you here neefer!

Shoutbox Archive
Users Online
Guests Online: 2

Members Online: 0

Total Members: 5,672
Newest Member: R3giN47d47
Donations
Donations Bank

Latest Donations
PRABHATH COFFEE WORKS - 10.00
John Despres (Scene... - 25.00
snwcmpr - 10.00
Ozo - 20.00
Josh Woodrow - 10.00

View Thread

Homeroasters.org » DATALOGGERS - CONTROLLERS - RATE OF RISE METERS » Dataloggers/Controllers/Rate of Rise Meters
Who is here? 1 guest(s)
 Print Thread
CR3 Arduino coffee roaster shield (TC4-compatible)
RoastingBen
Hi all. I would like to provide a very positive feedback on the CR3 shield.
I bought the smd ready version that needed soldering the through board components. It was very easy to follow Matthias instructions to complete board installation.
Once plugged on an arduino loaded with aArtisan, it worked perfectly for both heater and fan control. I did not try the bluetooth option yet but I am convinced it will work as fine as the other features

Matthias is a very nice and supportive person. He will.make its best to provide you quickly with a board with full transparency on the real shipping costs.

I hope this quick hands on review will be helpfull for people who wants to give it a try.

Cheers,

Roasting Ben.
Edited by RoastingBen on 07-09-2018 03:16
 
freetwhss
RoastingBen wrote:

Hi all. I would like to provide a very positive feedback on the CR3 shield.
I bought the smd ready version that needed soldering the through board components. It was very easy to follow Matthias instructions to complete board installation.
Once plugged on an arduino loaded with aArtisan, it worked perfectly for both heater and fan control. I did not try the bluetooth option yet but I am convinced it will work as fine as the other features

Matthias is a very nice and supportive person. He will.make its best to provide you quickly with a board with full transparency on the real shipping costs.

I hope this quick hands on review will be helpfull for people who wants to give it a try.

Cheers,

Roasting Ben.


Hi Roasting Ben

Do you have any video about your roaster controlled by CR3 ?

Thanks,
Peter
 
Want to Help?
By donating you can ensure that HR will continue to be open for years to come. Expenses are 100% transparent and can be viewed publicly at all times. You can find more information on donations and why we request them by reading up on the forum topic here. Thank you.

mg512
freetwhss wrote:

Hi Roasting Ben

Do you have any video about your roaster controlled by CR3 ?

Thanks,
Peter



Oh yeah, that would be cool. Also pictures would be awesome. I'm very curious myself what you have built with the board. And thank you for the kind words, Ben!
 
freetwhss
Any video about roaster controlled by CR3 would be highly appreciated.

Thanks,
Peter
Edited by freetwhss on 07-13-2018 02:03
 
KSkip
freetwhss wrote:

Any video about roaster controlled by CR3 would be highly appreciated.

Thanks,
Peter


What are you looking for? The process is pretty straight forward and Matthias is super helpful as well.

My first time home roasting was really successful thanks to Matthias and his CR3. See: https://forum.hom...post_66124
 
freetwhss
KSkip wrote:

What are you looking for? The process is pretty straight forward and Matthias is super helpful as well.

My first time home roasting was really successful thanks to Matthias and his CR3. See: https://forum.hom...post_66124


Hi

https://www.youtube.com/watch?v=gDzR6C7zoV0

Just like above video, at 41 secs show TC4 can be controlled by Artisan. Please take a video show CR3 can be controlled by Artisan. Thank You.
 
mg512
freetwhss wrote:

Hi

https://www.youtube.com/watch?v=gDzR6C7zoV0

Just like above video, at 41 secs show TC4 can be controlled by Artisan. Please take a video show CR3 can be controlled by Artisan. Thank You.


Heya, I've PMed you a short video, let me know if that's what you were after. It's not of a quality that I'd upload anywhere public, but if anyone else wants a look feel free to get in touch.

In general, ideally please contact me directly only with orders; for questions etc. post here - that way everyone gets to benefit from the discussion, and some questions other people on here are better placed to answer than I am I think. Plus, the number of questions I've been getting has gone up a fair bit recently, if that trend continues I don't think it'll be feasible for me to answer them all one-on-one. ;)
 
freetwhss
Thanks, great video.I will order one CR3.
 
samk
Hi,
I purchased a CR3 shield from Matthias and i have it working with Artisan using
a Hot Air popper. I can control the heater but cant seem to get the fan to respond
to a slider. It just goes to full speed one power as applied to the CR3. Queston
is in the slider config should i select Serial Command for IO3 or PWM?,
Sorry if this should be in its own thread, I was thinking that all CR3 concerns would be better served in one place

thanks
 
mg512
samk wrote:

Hi,
I purchased a CR3 shield from Matthias and i have it working with Artisan using
a Hot Air popper. I can control the heater but cant seem to get the fan to respond
to a slider. It just goes to full speed one power as applied to the CR3. Queston
is in the slider config should i select Serial Command for IO3 or PWM?,
Sorry if this should be in its own thread, I was thinking that all CR3 concerns would be better served in one place

thanks


Hi Sam,

What does your setup look like? DC fan, I assume? Using Artisan? Yes, in Artisan you would use the IO3 command, or for some firmware versions there is also a DCFAN command, but you shouldn't need that. Does changing the slider do anything at all? How about if instead you send an IO3 command directly in the Arduino Serial Monitor?

Those are the first few things that come to mind - let us know how it goes.
 
samk
Sorry, Yes Matthias,,
Its a Nostalgia Hot Air Popper modified with the Motor and Heater separated.
Fan Motor, CR3 and Arduino is powered by a 18vdc PS, with a SSR for the heater circuit. Yes also using Artisan, Arduino has aArtisan.ino REL-300 flashed on it. The Slider does not have any affect on the fan motor which starts up full speed once power is applied to the arduino/CR3. If i change the code for the slider to OT2;{} then the corresponding LED on the CR3 does in fact blink, but if I use IO3;{} then no response. Actually Im not sure if that's the correct code for the DC fan. I wont be able to check using the serial monitor until this evening, is the IO3;{} the correct code structure?
hope this helps
 
mg512
samk wrote:

Sorry, Yes Matthias,,
Its a Nostalgia Hot Air Popper modified with the Motor and Heater separated.
Fan Motor, CR3 and Arduino is powered by a 18vdc PS, with a SSR for the heater circuit. Yes also using Artisan, Arduino has aArtisan.ino REL-300 flashed on it. The Slider does not have any affect on the fan motor which starts up full speed once power is applied to the arduino/CR3. If i change the code for the slider to OT2;{} then the corresponding LED on the CR3 does in fact blink, but if I use IO3;{} then no response. Actually Im not sure if that's the correct code for the DC fan. I wont be able to check using the serial monitor until this evening, is the IO3;{} the correct code structure?
hope this helps


Yep, IO3;{} should be correct. Try IO3;50 in the serial monitor and see if that does anything. If not, the two things I'd try next is a different Arduino sketch (e.g. aArtisanQ_PID), and double checking that you've wired it up correctly (DC fan is attached to DC+ And DC- header on the CR3).
 
greencardigan
Did you have a multimeter? I so, you could measure the output on pin 3 of the Arduino to see if the output is changing voltage as you send different IO3 commands.
 
samk
Yes I do have a Multi-meter greencardigan, checked the out of Pin 3 to ground in both Artisan and the Serial monitor. when slider at Zero and using IO3;0 in the serial Monitor the meter showed 4.1mv, slider at 50% and IO3;50 reading was 2.4vdc and with the slider at 100% and IO3;100, reading was 4.9vdc, So it seems that the arduino is responding to the input from both Artisan and the Serial monitor,
I also tried the aArtisanQ_PID Sketch earlier but it displayed the same behavior
 
greencardigan
OK, it sounds like the software side is working properly. Maybe double check your connections or post a photo showing your connections.
 
samk
Thank you again for your input, I'll check the connections this evening when i get home. Seems to me that since the fan comes on and continues to run full speed when power is applied to the boards that the wiring from the terminal strip to the fan motor is correct, Would the polarity of the flyback diode cause any problems? if I reverse the leads on the output from the board to the fan motor then it wont start nor will changing the slider have any affect.
thanks again,
sam
 
mg512
samk wrote:

Thank you again for your input, I'll check the connections this evening when i get home. Seems to me that since the fan comes on and continues to run full speed when power is applied to the boards that the wiring from the terminal strip to the fan motor is correct, Would the polarity of the flyback diode cause any problems? if I reverse the leads on the output from the board to the fan motor then it wont start nor will changing the slider have any affect.
thanks again,
sam


If you used a Zener across the MOSFET, that would be a possibility. But with a regular diode across the motor terminals reversing it should give you a short when turning on the motor.

Could you check the left leg of the MOSFET to ground with your multimeter, when you put IO3;0? And then maybe middle to right leg and left to right leg?

Thank you!
 
samk
Sure will, the diode was a 1N4007 i believe,
I'll check it all out this evening
thank you,
sam
 
samk
Hi Matthias,
I checked the voltages as you asked,
the Arduino/CR3 is supplied with 18.7vc from a laptop PS
Left leg of the MOSFET to ground was 14.9mv
Middle leg to right leg was .45vdc
Left lg to right leg was 8.8mv
also added Pics of board and fan motor connections

thank you,
sam
samk attached the following images:
popper2.jpg cr32.jpg
 
mg512
samk wrote:

Hi Matthias,
I checked the voltages as you asked,
the Arduino/CR3 is supplied with 18.7vc from a laptop PS
Left leg of the MOSFET to ground was 14.9mv
Middle leg to right leg was .45vdc
Left lg to right leg was 8.8mv
also added Pics of board and fan motor connections

thank you,
sam


And that's with the fan spinning? And presumably middle leg to ground would be about 18V, right?

I can think of two possibilities:
1. The MOSFET is damaged.
2. There is a short between middle and right leg somewhere on the PCB. You would likely be able to see that, e.g. if there's solder connecting the two legs on the bottom side of the PCB.

Either way it sounds like a hardware defect with the board. If you happen to have a soldering iron and don't mind replacing the MOSFET yourself you could give that a try. Otherwise I will mail you a new board.
 
Jump to Forum:

Similar Threads

Thread Forum Replies Last Post
TC4 and roaster setup. Building a Coffee Roaster 2 12-11-2018 01:44
The Gift of Green Coffee Green Coffee 3 12-10-2018 05:46
New Roaster/Cooler Build! YOUR ROASTING/BREWING STATION 5 12-05-2018 09:41
Roaster Rob Clone - 1-5lb Gas Fired Fluidbed Roaster 21 12-04-2018 10:53
Heat Gun Driven Fluid Bed Roaster Fluidbed Roaster 23 12-03-2018 16:42
Homeroasters Association Logo, and all Content, Images, and Icons © 2005-2016 Homeroasters Association - Logos are the property of their respective owners.
Powered by PHP-Fusion Copyright © 2018 PHP-Fusion Inc
Released as free software without warranties under GNU Affero GPL v3
Designed with by NetriX