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Homeroasters - Home Roasting Coffee Community » BUILDING A ROASTER » Fluidbed Roaster

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can't establish communication between TC4 and Artisan
BadHabitRoasters	#1 Posted on 05/20/2023 11:17 AM
Newbie Posts: 40 Joined: March 18, 2013	My FB prototype build is nearly complete but I'm now having trouble getting Artisan to talk to my TC4. A friend was able to write a simple program that turned on my blower so at least that part of the shield and wiring appears to be functioning. I'm connected using the PAC2 Mode configuration. Vac motor with ZC detector and heat gun element heat source. I've successfully compiled and loaded aArtisanQ PID 6_7. I then loaded Artisan 2.8.2. I configured Artisan following instructions from Greencardigan's Artisan + TC4 youtube video. I'm still working on TC wiring so I don't expect to see anything there. When installing Artisan I did notice that I was never given the opportunity to install the serial driver. Can that be what's causing my trouble? I see in videos and install instructions that the driver name should show up in my com port choices but I only have the choice of COM3. My device manager shows a Arduino Mega 2560 (COM3) but that choice doesn't show up in the Artisan config menu. I'm so close I can almost smell the coffee but I'm stuck. Any advice? BadHabitRoasters attached the following images: Edited by BadHabitRoasters on 05/20/2023 11:43 AM


renatoa	#2 Posted on 05/21/2023 2:01 AM
Administrator Posts: 2591 Joined: September 30, 2016	Install a serial comm terminal tool, like Termite, https://www.compu...ermite.htm, then try connecting that port, and send a READ TC4 command. Is probably what your friend already did. If getting an answer you are good, else the usb-serial driver is fault or missing. Alternative, without installing anything, open the serial monitor in the Artisan Help menu, log some messages, then copy-paste them here for diagnose, like the attached example. ~~~ renatoa attached the following image:


BadHabitRoasters	#3 Posted on 05/21/2023 1:50 PM
Newbie Posts: 40 Joined: March 18, 2013	Thanks! BadHabitRoasters attached the following image:


BadHabitRoasters	#4 Posted on 05/21/2023 2:18 PM
Newbie Posts: 40 Joined: March 18, 2013	image from Artisan after pressing "start" button BadHabitRoasters attached the following image:


renatoa	#5 Posted on 05/21/2023 2:38 PM
Administrator Posts: 2591 Joined: September 30, 2016	No communication over that COM3. No response to CHAN command. You are probably missing the driver for CH340/341 usb to serial chip. After installing this driver you will find the real com port used by TC4 is the most probably somewhere in the COM30-40 range.


greencardigan	#6 Posted on 05/23/2023 8:35 PM
1 1/2 Pounder Posts: 1178 Joined: November 21, 2010	What com port was used to load the sketch? The drivers must be working already?


BadHabitRoasters	#7 Posted on 05/24/2023 5:10 PM
Newbie Posts: 40 Joined: March 18, 2013	Same port. I’m curious about how the driver loads. The instructions show the installer giving a choice to load or not load. I never saw that option box with the new version.


greencardigan	#8 Posted on 05/24/2023 7:36 PM
1 1/2 Pounder Posts: 1178 Joined: November 21, 2010	This may help. https://www.ardui...-download/ But I don't understand how you could upload the sketch to the arduino if the drivers wasn't already working. What does your Device Manager show after you connect the Arduino? Is it appearing under 'Other devices' or 'Ports'? Are you using an Arduino Uno or Mega? Edited by renatoa on 05/25/2023 2:07 AM


BadHabitRoasters	#9 Posted on 05/25/2023 6:30 AM
Newbie Posts: 40 Joined: March 18, 2013	When Arduino Mega 2560 is plugged in, it appears in “Port (COM & LPT”. Under Properties, it says Port_#0001.Hub_0001


renatoa	#10 Posted on 05/25/2023 9:30 AM
Administrator Posts: 2591 Joined: September 30, 2016	Should see something like... attached Comm port number could vary. Manufacturer data should tell you if the comm port really belongs to Megat 2560 ~~~ renatoa attached the following images:


BadHabitRoasters	#11 Posted on 05/25/2023 11:43 AM
Newbie Posts: 40 Joined: March 18, 2013	So if the manufacturer is Arduino instead of WHC I’ve got the wrong driver installed?


renatoa	#12 Posted on 05/25/2023 12:31 PM
Administrator Posts: 2591 Joined: September 30, 2016	Nope, whc is for my board, using a ch340 usb to serial adapter chip. No idea what is using Mega 2560, but Arduino seems legit as mfr.


BadHabitRoasters	#13 Posted on 05/26/2023 6:31 AM
Newbie Posts: 40 Joined: March 18, 2013	Gotcha. I’m traveling so haven’t been able to look plug into and read the single thermocouple I have connected by if I remember correctly, even with 1 TC connected. Is the driver just the run of the mill arduino driver or is it specific and needs to be be loaded from the GitHub files for the TC4? I’m thinking back and I don’t think I did that.


exer31337	#14 Posted on 05/29/2023 12:40 AM
Newbie Posts: 31 Joined: September 12, 2022	Error in my code. exer31337 attached the following images: Edited by exer31337 on 05/29/2023 5:12 PM

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