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.

freetwhss wrote:

Hi Roasting Ben

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

Thanks,
Peter

freetwhss wrote:

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

Thanks,
Peter

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.homeroasters.org/forum/...post_66124

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.

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

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

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

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