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TOWER SYSTEM – set-up at Maker Faire 2014 May 22, 2014

Posted by rik94566 in adafruit, agponics.com, arduino, DIY aquaponics, DS18B20, Electronic Componets, indoor aquaponics, indoor gardens, indoor growing, Internet-of-Farming, IoT aquaponics, One-wire, Raspberry PI, Tower System, Tower Tubes.
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Maker Faire - 2014

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EDITOR’S CHOICE – not once – but 3 times @ Maker Faire – WOW May 21, 2014

Posted by rik94566 in agponics.com, aquaponic automation, aquaponics, aquaponics electronics, arduino, DIY aquaponics, indoor aquaponics, indoor gardens, indoor growing, Internet-of-Farming, IoT aquaponics, Raspberry PI, sensor, Tower System.
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Very few displays achieve 3 EDITOR CHOICE AWARDS —

MAKER FAIRE - AWARD

THE BEST OF BOTH WORLDS — arduberry February 12, 2014

Posted by rik94566 in agponics.com, aquaponic automation, aquaponics, aquaponics electronics, arduino, DIY aquaponics, indoor aquaponics, indoor growing, IoT aquaponics, Raspberry PI.
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I have been reading about this product now for a while and finally thanks to J.C. Naumowicz got the link to check it out.

arduberry

Here is the link:

https://www.kickstarter.com/projects/john-cole/arduberry-unite-raspberry-pi-and-arduino?ref=email

This solution takes care of a number of issues that are hard to solve with arduino or raspberry pi on there own.  The two together are truly better together  than as individual solutions.

Enjoy and support this effort if it is something you think will be a better solution for us all.

agponic MD – connecton box left side features February 12, 2014

Posted by rik94566 in agponic MD, agponicMD, agponics.com, aquaponic automation, aquaponics, aquaponics electronics, arduino, DIY aquaponics, DO sensor, indoor aquaponics, indoor growing, Internet-of-Farming, IoT aquaponics, One-wire, PRODUCTS, Slide Switch, Slide Switch.
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Here is the configuration of the left side of the connection box.

MD - pow pic

agponic-MD — features defined February 4, 2014

Posted by rik94566 in 1-wire, agponic MD, agponicMD, agponics.com, aquaponic automation, aquaponics, aquaponics electronics, DIY aquaponics, DS18B20, indoor aquaponics, indoor growing, Internet-of-Farming, IoT aquaponics, One-wire, PRODUCTS, Stainless Steel Temp Probe, Temperature Probe.
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Now that the basic agponic-MD unit is completed – I am working through all the different features that can be found on the unit and define there functions.

Here is one side of the connection box at the back of the unit.

pH - power side

Drain configuration for micro device — December 9, 2013

Posted by rik94566 in agponic MD, agponicMD, agponics.com, aquaponic automation, aquaponics, indoor aquaponics, indoor growing.
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Now that I have been building additional micro-devices for recent orders – I need to start doing a better job documenting how the build goes so I can duplicate the process as demand for the units is building (more on this in a later post).  Here is the view of the draining mechanism that allows water exchange between media bed and water tank or fish tank in the real world.

MD Valve for unit

TOWER TUBES — NOW FOR SALE September 12, 2013

Posted by rik94566 in agponics.com, DIY aquaponics, indoor aquaponics, indoor growing, Internet-of-Farming, IoT aquaponics, plumbing, PRODUCTS, Tower Tubes.
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I have just updated the “THINGS FOR SALE” page with the pricing for the Tower Tubes.

Check it out and follow the instructions listed on the page and I will get busy delivering your tubes to you.

towersales

INDOOR GARDEN SHOW – SF September 11, 2013

Posted by rik94566 in agponics.com, Air Pots, Crop, DIY aquaponics, indoor gardens, indoor growing, PRODUCTS.
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This past July I was able to attend the Indoor Garden Show in San Francisco.

Have always wanted to attend for the past 3 or 4 years, but was unable due to my personal vacation during the same time.

Well this year it worked out and got to spend a whole day there with a large number of others.

Found some very interesting new items that I will be able to put to work on some up coming projects. I will blog about them as I have time.

The one that was of most interest are Air Pots. This is a product that will have major impact for me going forward. I will be blogging about it and how I am using it in the next few posts. So stay tuned.

airpot

DS18B20 — external power supply December 15, 2011

Posted by rik94566 in 1-wire, aquaponic automation, aquaponics, arduino, CEA, Controlled Environment Agriculture, DIY aquaponics, DS18B20, HEX code, indoor aquaponics, indoor gardens, indoor growing, One-wire, probe index, sensor, Sensor Hub, Stainless Steel Temp Probe, Temperature Probe.
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Before I can connect everything up and work with my DS18B20 probes using external power supply I need to get one.  The one that I have selected is this one:

5V power supply

DS18B20 – on to external power December 7, 2011

Posted by rik94566 in 1-wire, aquaponic automation, aquaponics, arduino, CEA, Controlled Environment Agriculture, DIY aquaponics, DS18B20, HEX code, indoor aquaponics, indoor gardens, indoor growing, One-wire, probe index, sensor, Sensor Hub, Stainless Steel Temp Probe, Temperature Probe.
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When you want to learn something new in electronics, you have to start at the bottom.  In my mind a circuit layout like this is the bottom for me and it is hard for me to follow.  I will be the first to admit that I am not an electrical engineer and don’t want to be one either.  I just want a simple way to hook things up and have them work when I need them too.  So this layout just gives me a general idea of where to start on hooking up a external power source for my probes.  I was at this same point when I started to learn about DS18B20’s and use with an arduino.   The good news is that I have a more clear understanding how the DS18B20 functions and how it operates than when I first started on this project.

WHY DO I NEED EXTERNAL POWER FOR MY DS18B20’S  ——-

Well that is a very good questions.  In most applications and small projects you do not need to know anything about this aspect of the DS18B20’s.  In my case as I have been working on this blog several questions have been posed as to power drains on arduino’s if you request to many sensors being driven by the unit and you have long runs to your sensors.  So I need to do some research as to how to use a external power source.  A lot of places on the internet talk about it, but I have yet to find any source that shows a person how to actually make this work.  As for the research here is the best I could find.  If you know of others please let me know and I will add it to my library and give you credit for it here.

HERE IS THE BIBLE ON THIS SUBJECT  —

http://www.arduino.cc/playground/Learning/OneWire

Normal (external supply) mode
With an external supply, three wires are required: the bus wire, ground, and power. The 4.7k pull-up resistor is still required on the bus wire. As the bus is free for data transfer, the microcontroller can continually poll the state of a device doing a conversion. This way, a conversion request can finish as soon as the device reports being done, as opposed to having to wait 750ms in “parasite” power mode.

Note on resistors: For larger networks, you can try something smaller. The ATmega328/168 datasheet indicates starting at 1k6 and a number of users have found smaller to work better on larger networks.

THAT IS ALL THERE IS — in this bible.  Not much of a help in my mind.

HERE IS THE OTHER THING I FOUND:

http://sheepdogguides.com/dst9parasitic.htm

Choosing your 1-Wire chip power mode

Many of the chips in the 1-Wire family from Dallas Semiconductor can be powered “parasitically”… that’s Dallas’s (apt) name for the system used.

The advantage of parasitic powering is that it means you can have a two wire MicroLan. (“MicroLan” is just Dallas’s trademarked name for a bunch of 1-Wire chips “playing nicely” with each other and a “master” device, e.g. a PC or simple microcontroller, e.g. Arduino, in charge of the network of 1-Wire sensors, actuators, storage units, etc.) If you don’t use parasitic powering, then you need to run three wires from chip to chip to chip. (An aside: You should be aware that MicroLans don’t like star topographies. If you need a star, you need a hub to split it into separate, non- star, legs.)

I’ve often used parasitic powering entirely successfully. However, if you have a lot of chips on the MicroLan, or high poll rates, the time may come when supplying the chips which can be powered parasitically makes sense. It isn’t difficult… especially if you provided for the possibility that you’d like to make the change when you first set up your MicroLan.


For example…

Just as an example, let’s consider a MicroLan that is reading temperatures in various parts of a large greenhouse.

We’ll assume you’re using chips from the DS182x family, in a TO92 package, the little blob of plastic with three “legs”.

To use those chips parasitically, you just connect two of the legs to one another, and that leaves you with two connections which go to the two wires of the basic MicroLan.

Now… and this is what I meant about giving yourself options for the future… rather than doing that the “obvious” way, using either a small PCB, or simple discrete wires, connect each of the three pins to a separate track or wire, and THEN make your connections to the MicroLan. If later, you want to use non parasitic power, then all you have to do is change a link, or disconnect one of the wires, and you can then supply the chip with its independent V,cc easily, without disturbing what would be fiddly connections to the package’s pins.

Here are the details of which pin is which on the DS1820…

DS1820 pinout diagram

The DS1820’s middle leg goes to the 1-Wire data line.

The DS1820’s leg marked “See text” should be attached to the 5v, or, for parasitic power, connect this pin to ground (zero volts))

And the DS1820’s “1-Wire 0v” should be attached ground,i.e. to zero volts.

(If the above seems over-explained, please remember that this page may be accessed by people who want more than just an idea of what this “parasitic power” thing is all about.)

AND THE LAST ONE I FOUND:

http://forums.parallax.com/showthread.php?135523-ds18b20-sensor-fails-at-high-temperature

osts
117

Default Re: ds18b20 sensor fails at high temperature

I may have stumbled on a possible solution, but I am not sure how to code it. The snippet below is from the Maxim data sheet for the ds18b20. If I understand the second paragraph, correctly, I may need to Insert these commands:

Skip rom (cch)
Read power (b4h)
Then initiate a “read time slot”

I am not sure how or where to insert these commands in the one wire object.
I am using an external power supply with a 4.7k pullup

“The use of parasite power is not recommended for temperatures above +100°C since the DS18B20 may not be able to sustain communications due to the higher leakage currents that can exist at these temperatures. For applications in which such temperatures are likely, it is strongly recommended that the DS18B20 be powered by an external power supply.

In some situations the bus master may not know whether the DS18B20s on the bus are parasite powered or powered by external supplies. The master needs this information to determine if the strong bus pullup should be used during temperature conversions. To get this information, the master can issue a Skip ROM [CCh] command followed by a Read Power Supply [B4h] command followed by a “read time slot”. During the read time slot, parasite powered DS18B20s will pull the bus low, and externally powered DS18B20s will let the bus remain high. If the bus is pulled low, the master knows that it must supply the strong pullup on the 1-Wire bus during temperature conversions.

Not a lot to work with here, but I do have a lay out and now need to assemble the components I will need to pull this off.  Don’t you just love electronics and all the neat stuff you get to learn!!!!