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DIY Projects




While the entire Grow By Wire project is considered a DIY project, it can easily be sub-divided into many smaller, individual DIY projects.

On this page I will keep a list of all the DIY Hardware Projects related to GBW.

Cloning Chamber

This perfect little cloning station occupies just one shelf on a stack of shelves. The shelf unit is one of those plastic resin 5 shelf units from the big box store, but I'm only using 4 shelves here. You just need some black and white panda plastic,wrap it up, and put a light in it. Enclosed in this little room, it's easy to keep the humidity and temps in check. Check out this build you can do in a couple hours from start to finish.

















Automated Clone Mister


When I do clones, I use Jiffy Peat Pellets usually, and that means keeping the humidity very high, and misting the cuttings until they form some roots and can take water up through them. I generally try to keep some clones rooting at all times, so that means lots of misting, every 6 hours or so...  I decided I wanted to automate it, and will integrate it into the Grow By Wire system, but this also makes a great standalone project.  Now you can go out for a whole day, or two, or three, and not worry about your clones wilting away and dying...




Sensors

10KΩ Voltage Divider

A voltage divider is a simple circuit which turns a large voltage into a smaller one. What it does in our case though is acts like a "pull down" resistor. This is because the Arduino will read random numbers on a floating input, one with no voltage. This is because the pin is acting like an antenna. The resistor makes sure that the sensing pin is grounded through the 10Kohm resistor, this will sink any small voltages to ground, and will clear up those random readings. When there is actually a voltage read through the sensor, it will overcome this weak grounding, and we can read the voltage on the Arduino.


Soil Moisture Sensor

I've gone through at least a half dozen different soil moisture sensors, and have finally settled on one of my own design. Technically, the design is the same as any other moisture sensor out there, two metal probes that stick in the ground with a way to measure voltage across those probes. My design is more of materials and assembly...  Check it out for cheap, easy to make, remarkably reliable and consistent.

Dual Level Soil Moisture Sensor

What if you could measure the soil moisture content at the surface, AND at the bottom of the pot? Well, now you can!  This is a modification of the above sensor, and it has also been converted into an I2C device.
Water Reservoir Depth Sensor

This one, while it is a DIY project, is actually part of the Automatic Watering System of Grow By Wire. This sensor monitors the depth of the water in the watering bucket (reservoir) and will alert me when it needs water added. The sensor is also used during watering to keep track of the current depth/volume, and how much has actually been umped so far.
Light Sensor

This is a simple photoresistor (Light Detecting Resistor) with a voltage divider, and from this, we can tell if the lights are on or off, and if wanted, how bright they are.
Temperature Sensor

This particular sensor is a simple thermistor with a voltage divider, and is actually very accurate.

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