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Oneal
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· 08/05/2020 1:08 PM
Is anyone roasting on a Coffee Tech FZ 94? Using Artisan. Need help. thumbdown

mtbizzle
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· 08/03/2020 11:26 AM
There is (or was? Grin ) a gesha at sweet marias...

snwcmpr
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· 07/25/2020 12:31 PM
I ran out of Ethiopian Gesha.

snwcmpr
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· 07/25/2020 12:31 PM
it is ok. I do not remember. I think it was a callout to the spam shout.

JackH
OfflineAdmin
· 07/24/2020 3:52 PM
Sorry Ken, I deleted your shout by mistake. Lots of shoutbox spam attacks lately.

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TC4+ Arduino coffee roaster shield (TC4-compatible)
harryf
Hi mg512, yes the fan and heater still work, just the temp readings are nonsense. With the bench psu wired to the DC in it works fine. I even switched on the fan psu at the same time, with the dc not connected in case it was causing some interference, and all was fine.
 
harryf

Quote

renatoa wrote:

May I ask if all the unused inputs are shorted ?


No, but I will try that tomorrow
 
harryf
Tried shorting the unused inputs, no difference. I connected the V in gnd to earth and bingo! Temperature readings are now good. I remember reading that one in a post. Just need to figure out why the heater slider does not move when using the heater buttons, but the fan slider moves with the fan buttons. However, the heater slider does control the heater OK.
 
mg512
Ah, are you connecting to your computer via USB, and is that computer connected to mains as well? Generally I would avoid that - either use a laptop that's on battery, or use Bluetooth altogether, when using the DC IN header.
 
https://www.tindie.com/products/15798/
harryf

Quote

mg512 wrote:

Ah, are you connecting to your computer via USB, and is that computer connected to mains as well? Generally I would avoid that - either use a laptop that's on battery, or use Bluetooth altogether, when using the DC IN header.


I am connecting via USB to a desktop PC that I built for this purpose, so the battery option is a non starter. However, it all seems stable now, so I'm happy. Should the heater slider follow the buttons?
 
renatoa
Yes, it should.
But this is an Artisan issue, not TC4.
You can experience some strange behaviours with sliders... like jumping to values multiple of 4 only, for the air slider, while the heater works fine... so no wonder another one.
 
harryf
Oh well, thanks anyway
 
sky0sea
Hello.

I am trying to make popper with TC4 + Arduino coffee roaster shield.

Preparation: TC4+, Arduino Uno or Arduino Mega, PSU 24V 5A,
Thermocouple (ring type, rod type), SSR 40A for heater,
I2C LCD, etc.

Arduino Uno's TC4+ temperature is output as serial Baudrate 115200. I uploaded the Artisan PID.
Output is connected to the Artisan PC program.

I want to use Arduino Mega.

TC4 + temperature of Arduino mega2560 is output as serial Baudrate 115200. I uploaded the Artisan PID.
I2C was wired.

It doesn't seem to connect to the Artisan PC program.

Is there anything I should consider to solve the problem?
 
mg512

Quote

sky0sea wrote:

Hello.

I am trying to make popper with TC4 + Arduino coffee roaster shield.

Preparation: TC4+, Arduino Uno or Arduino Mega, PSU 24V 5A,
Thermocouple (ring type, rod type), SSR 40A for heater,
I2C LCD, etc.

Arduino Uno's TC4+ temperature is output as serial Baudrate 115200. I uploaded the Artisan PID.
Output is connected to the Artisan PC program.

I want to use Arduino Mega.

TC4 + temperature of Arduino mega2560 is output as serial Baudrate 115200. I uploaded the Artisan PID.
I2C was wired.

It doesn't seem to connect to the Artisan PC program.

Is there anything I should consider to solve the problem?


The Mega is not supported. Even if the TC4+ worked on a hardware level (which I haven't looked into and am not sure about), I don't think aArtisan / aArtisanQ_PID are compatible with the MEGA, as they make use of some low-level features of the UNO's microcontroller.
 
https://www.tindie.com/products/15798/
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