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I can also add that on my particular GC board, PWM is also not working on pin #11 and #48. This is all with the Ethernet version of the 45 Grand Central firmware. I can also add that the ethernet communication issue I am seeing is odd. Take analog inputs A4 or A5 (pins 104 and 105). If I...

Will the BC firmware be setup to allow use of A0 and A1 pins as a true analog output using the GC dual DAC's?

Indeed, new hardware and it is a risk. I did examine the pinouts and for example, PWM should be available on all the pins you have set in the BC wiring diagram but still some don't function. I do need to confirm if DO works on these to perhaps confirm if the pins are simply bad in some...

I've been trying to get my new Grand Central board (MEGA 2560 replacement) installed and it has been a struggle. Everything worked perfectly with the MEGA 2560 and I have been careful with the few 5V sensors (I disconnected them all I think). It shouldn't be so problematic but some oddities on...

Thanks. I'm just making sure I understand what is what with the GC and try to not fry it!

Are there potentially some errors in the beta Grand Central wiring map? "D = Digital Input or Digital Output (Note: Input can be 5V active high or low, output is 5V). * indicates Digital Output only" Is the GC tolerant of 5V on the input if it is digital and does it really output 5V? "A =...

Easy enough, thanks BrunDog. Is the GC any different in terms of how concerned one should be about powering relays compared to the MEGA 2560? I actually don't power the relay boards I use from the controller but a rather from a seperate power supply to remove that concern (if that is the...

Do we know roughly what the power consumption is for the BruControl TF-3, RP-3 (w/4 RTDs), and the AA-1 boards? I am just trying to ensure I understand my power consumption for 3.3V as I contemplate powering these via the internal regulator on the Grand Central M4 that will replace my MEGA 2560.

Well in a word, no. The three routes are to use the legacy wiring map included in the V1.1 distribution (it is in a sub folder) or you can send your config file to BrunDog so he can make a quick change. It's a one time thing and really at the request of the users to remove the RTD wiring map...

Just a thought while looking over the v1.1 wiring map for the MEGA 2560. Please correct me if I am wrong but the wiring map states that interface pins 50, 51, and 52 are not connected (N/C). That is true unless you need to connect RTDs (perhaps via a RP2) as I understand it. As indicated in...

It is not uncommon for a load cell equipped tank or vessel to have cabling connected to it. This doesn't present a problem as long as you do not remove the cabling or make some sort of significant adjustment to it such that the forces presented by those cables are altered. The mere presence of...

I don't have it handy but it is just BC read weights vs. known values. If I wanted to account for density I could do it either in the table or on the Uno. I would probably set up the LCD buttons to change the output between water (1.00) and say wort (1.050). I am not sure I need that yet but...

Before I knew what I was doing, I assumed I could just hook the HX711 up to my MEGA 2560 running the BC firmware and to do exactly what you were talking about. But once I realized I couldn't just mess around in an Arduino sketch to make it work due to the BC firmware, a different route was...

I'm not home but this is what pictures I have. I welded the box steel into an "X", ran the wiring internally and used some components from a few scales I had to finish off the install. The load cells are M5 threaded.

For anyone interested in putting together an Arduino Uno based load cell controller with a local LCD display, local tare and calibration functions via the LCD buttons, with an analog output via a 12-bit DAC that can be connected to a controller running a BC firmware, the Arduino sketch in the...

Oh, that is what those are called. I learned something today! I will post the Arduino sketch for the "Mass Controller" which is fairly well commented and that should help anyone interested along quite a bit if they want to go this route. It is a bunch of work but in the end I do get a sweet...

What are "grip icons"?

I know folks around here have tended to stay away from using mass as a means to measure volume but in my area (biopharmaceutical manufacturing), mass is the gold standard if you want to know the volume of a liquid. This is especially true in fixed/permanent tank installations where mass...

Do you perhaps need a sleep command in that loop to keep it from racing about the loop? I have found that things work but it doesn't appear to be working in the script window if things are happening too fast in certain simplified testing scenarios. I have not specifically used the call/return...

Indeed. Check out post #427 in this thread https://www.homebrewtalk.com/forum/threads/brucontrol-brewery-control-automation-software.624198/page-11#post-8227186