Recent content by paledragon

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  1. P

    BruControl: Adding unsupported devices

    Hmm...I currently use arduinos to read load cells and then output a 0-5 VDC signal to send to BC. Would this be able to eliminate the need to output 0-5 VDC and just send the digital value from the arduino running the load cells to bru control? Thanks, p.d.
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    Load cells

    It sits on the bolts. The diagonally opposite load cells point away from each other, and the steel bar connecting them is meant to relieve the torque on the plywood. All the same color wires coming off the load cells are just tied together as one. So instead of reading each individual load...
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    Ultrasonic sensors for filling a Grainfather?

    I've got load cells up and running under each vessel in my 2 vessel system: Load cells I'm looking forward to being able to take mass measurements on my mash tun to fine tune things like recirc loop volumes, grain absorption, etc. On my BK side, I'll be able to automatically calculate boil off...
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    Load cells

    pretty sure this is what I was using... #include <HX711_ADC.h> #include <LiquidCrystal.h> //HX711 constructor (dout pin, sck pin) HX711_ADC HLT(A15, A14); // select the pins used on the LCD panel LiquidCrystal lcd(8, 9, 4, 5, 6, 7); // variable declaration int lcd_key = 0; int...
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    BruControl: Brewery control & automation software

    the flow is load cells > HX711 board > Uno > BC Mega. Not sure how the HX711 board communicates with the Uno, I just hook stuff up and hope it works :) The Uno outputs a PWM signal to the BC Mega. I also got the DAC thing working, and that flow looks like: load cells > HX711 > Uno > DAC > BC...
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    Load cells

    Drift measured over the course of 2 hours (about -0.1 lb, or a drop of 0.012 gallons)... Load cell drift over 2 hours by paledragon posted Jan 1, 2019 at 7:23 PM
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    Load cells

    Adding option number 4, which is relatively equivalent to option 3... 4. Add an MCP4725 12-bit DAC to enable a 0-5VDC output from the load cell arduino to send over to the arduino running BruControl. SparkFun link to show how to solder the headers on so you can just plug it into an Uno...
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    BruControl: Brewery control & automation software

    Certain pins on BC allow counter input in addition to digital. I might head to the store today to pick up one of these to see how well a VDC breakout board works: https://www.sparkfun.com/products/12918 If I wasn’t such a newbie at this, I probably would have started with one of these. Looks...
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    BruControl: Brewery control & automation software

    The HX711 needs its own dedicated Arduino, so I needed to figure out how to generate an output that could be read by the Brucontrol board. Arduino boards can’t natively output a VDC signal (I think?). I bought one of the AA-1 boards to convert PWM to VDC. It worked well, but to me was just one...
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    Load cells

    Might as well close the loop on this one... There's a few options for getting load cell output into BruControl: The PWM to VDC (AA-1) converter sold by BruControl. Bought one, confirmed it worked, but found a better solution, for me anyway. Emulate the load cell value as a 1wire temperature...
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    BruControl: Brewery control & automation software

    Sweet! One other thing I noticed today while trying to graph drift on my load cells, is that graphing a counter input seemed to be limited to the totalizer and not the rate. I’m going to do more experimenting to try and dump the rate to a variable and graph the variable, but no idea if that’ll...
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    BruControl: Brewery control & automation software

    In case there’s any kind of feature request list for future versions: For the counter input display, is there any chance of adding an option to only display the rate and not the totalizer? For indicators, something similar to options in Labview (dials, vertical fill bars, etc) would be cool as...
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    BruControl: Brewery control & automation software

    smort, thanks for that tip! got an Uno up and running sending values to Brucontrol by emulating a 1-wire device. not sure which way i'll go yet, but it's good to have options. p.d.
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    BruControl: Brewery control & automation software

    Since we're on the load cell topic :) I've got my load cells hooked up to a separate arduino mega, which then outputs a variable frequency PWM signal (using the Timer3 library) into the Brucontrol mega using the counter input. Using offset and multiplier on the rate, the rate displays as the...
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    Load cells

    Links are: https://www.sparkfun.com/products/13879 https://www.robotshop.com/en/micro-load-cell-50-kg.html Load cells are made by phidgets, so you could probably order directly from them as well. Robotshop has the data sheet on their website that gives specs. At least for these load cells...
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