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
04/23/2019 10:55 AM
Hello Ken! What's roasting?

snwcmpr
04/22/2019 5:07 AM
Hi all.

Gigimedrano
04/17/2019 6:33 AM
Hi guys, my hot top has stripper a gear.. ive only had it for a lil over a year now hot top wants 120+ for a new motor and gearbox assembly any idea? Is this normal year and some Months dont seem lik

Ray Kahuna
04/16/2019 8:04 AM
has anyone built an adjustable coffee grind press?

Nitesh
04/01/2019 10:04 PM
Hello, I have been trying to get in contact with manufacturer of HB roaster in China but failed until now. Does anyone have idea who is the manufacturer of HB roaster in China?

Users Online
Guests Online: 3

Members Online: 1
JackH

Total Members: 5,920
Newest Member: xoffender
In Memory Of Ginny
Donations

Latest Donations
renatoa - 2.00
JitterzZ - 50.00
PRABHATH COFFEE WORKS - 10.00
John Despres (Scene... - 25.00
snwcmpr - 10.00

View Thread

Who is here? 1 guest(s)
 Print Thread
TC4+ Arduino coffee roaster shield (TC4-compatible)
mg512
Interesting about the DC fan and reset - happy to hear it's working well with the TC4+.

About EM noise, that sounds strange, especially it being different in different rooms. A few questions:

* How unstable is unstable +- 1C, 2C, 5C? Does it happen just when trying to measure the ambient temperature?

* Does it make a difference if the fan is on? Does it happen when the fan is completely off? If it makes a difference, what kind of fan is it, and do you have any capacitors and/or inductors on the fan?

* Same for the heater - does it still happen when everything is off?

* How is the TC4+ and the fan powered - what kind of power supply? Arduino via the TC4+ on-board voltage regulator? How is it connected to your computer (USB or Bluetooth)? Is the computer plugged into the mains, or on battery? (If you connect via USB, try the computer on battery - does that make a difference?)
 
https://www.tindie.com/products/15798/
Wiz Kalita
I recently eliminated most of the noise in my thermocouples by wrapping the leads in aluminium foil. The other cables in my setup are able to induce enough of a current in them to give several tenths of degrees of noise. The rest of the noise I got rid of by isolating the TC4+ from electrical noise. The fan is now switched on and off through an SSR connected to OT2, and my laptop runs on battery. All these things helped a lot.
 
Ilovehash
I wonder if TC4+ provides any warranty. I just got the board for 3 days but it looks like the temperature reading now is totally none responsive. Both ET and BT reading stays at 27. I only connected to channel one but both channel 1 and 2 stays at 27 degree. Applying heat did not give me any change on temperature reading any more. It started with temperature fluctuation about +-10 degree celsius for the first two days of operation before it fails.
 
mg512
Ilovehash wrote:

I wonder if TC4+ provides any warranty. I just got the board for 3 days but it looks like the temperature reading now is totally none responsive. Both ET and BT reading stays at 27. I only connected to channel one but both channel 1 and 2 stays at 27 degree. Applying heat did not give me any change on temperature reading any more. It started with temperature fluctuation about +-10 degree celsius for the first two days of operation before it fails.


Yes, of course! Email me with the details ( [email protected] ) and we'll sort it out.
 
https://www.tindie.com/products/15798/
Shamu1023
How can I use this on my Hottop B2K?
Any install instructions?
Do I need something called an HTC board too?
Seems theres lots of threads about this, but I cant seem to get a straight answer.

Thanks
 
mg512
Shamu1023 wrote:

How can I use this on my Hottop B2K?
Any install instructions?
Do I need something called an HTC board too?
Seems theres lots of threads about this, but I cant seem to get a straight answer.

Thanks


Ah, good question. Short answer: It depends. If you are looking for a plug-and-play solution this isn't available anymore. If you're looking for a DIY project, the TC4+ can interface with a hottop as with any other roaster, and no special Hottop board is needed.

Longer answer: I think the HTC board you have read about most likely refers to tge "Hottop Roaster Interface" board that was made by Jim, who also made the original TC4. As far as I can tell from what information about it is still available, this board plugged directly into a proprietary control interface in the Hottop roasters. This would probably have made installation very easy. But, unfortunately, this isn't available anymore. I can't find much information on that Hottop control interface, nor do I have access to a Hottop roaster to try to reverse-engineer it, so there is no way I could come up with a new reimplementation of this. (Unless someone wanted to gift me a Hottop. ;))

That said, you can of course still use the TC4+ with a Hottop as you would with any other roaster, by wiring the TC4+ directly to the heater, fan and drum motor. It's a bit more work, you should be qualified to work with mains electricity, and you'd essentially replace the electronics in the roaster with the TC4+. There isn't any instructions specifically for the Hottop roaster, but do have a look at the manual and I've also just made a quick-start guide available here: https://coffee.ge..._start.pdf
 
https://www.tindie.com/products/15798/
Shamu1023
I think I get it now.
The old TC4 is basically getting TC output to PC, then HTShield would allow Artisan to control heat and fan.

The TC4+ "could" do all of the above, albeit with a bit more wiring, and not connector compatible to the Hottop, as the HTsheild was... HTsheild used a hottop 7 or 8 pin wire to keep the original machine unedited.
 
mg512
Yes, that's essentially it. Technically it's not so much to do with TC4 vs TC4+, more that the HT board isn't available more. In theory you could probably use both the TC4 and the TC4+ with or without a HT board. But the bottom line is the same, of course: Still possible, just a little more wiring as you say and you'll need a solid state relay and a few other bits and pieces.
 
https://www.tindie.com/products/15798/
Jump to Forum:

Similar Threads

Thread Forum Replies Last Post
Building a small fluid bed roaster, need advice. Fluidbed Roaster 3 04/23/2019 7:09 AM
Artisan to Arduino set up help Drum Roaster (Store Bought and Commercial) 8 04/22/2019 3:57 PM
Prague Air Roaster Other Roasters 4 04/19/2019 12:05 PM
WTB- Fresh Roast SR500 or SR700 roaster JAVA TRADING COMPANY 1 04/17/2019 9:01 AM
coffee/espresso machine ALL ABOUT ESPRESSO MACHINES 8 04/17/2019 7:04 AM
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 © 2019 PHP-Fusion Inc
Released as free software without warranties under GNU Affero GPL v3
Designed with by NetriX