Hi, on The Woodpecker today, I'm going to show you how I Control my dust filter system
With such a fantastic dust filtering system, I also need a fantastic controller.
A normal person would just plug it into the wall.
Another would add a wall switch.
A fancier person would use a simple remote.
But you know me; I'm not normal.
I built my own controller; so for the rest of this episode, I'm going to give you a small taste of it.
Electronics projects, like woodworking, begin with nice plans; so here it is, the plan for my controller.
With it, I built a prototype.
Haven't I said prototype?
But because of this, I was able to design the actual PCB.
And had several boards made.
Then I solder all the components.
And here they are, both controllers.
Don't you think that they look better than my prototype?
The key part of this is this ten amps relay; don't worry, each motor only draws just a little bit more than five amps; I'm far from the limit.
On my circuits, I can add a RF receiver and, with this remote, I can start and stop the filtration.
This adjustment can set the duration between five to one hundred and twenty seven minutes.
And each button is a multiplier of this value, one time, two times, three times and off.
But I wanted more; so I added a Bluetooth receiver.
And now with a terminal program, I can access the controller.
Here you can see me turn the relay on and off.
This LED indicates the relay is on.
And now with this communication, I can have some informations on the system; like the value of the time adjustment.
But not just that; I have a full page of things that I can access.
We'll see that soon.
Humm, starting and stopping the filtration is not that impressive;
so I add a clock module.
With this module, I can have the time; but it's true usefulness is its ability to start the filtration at a specific time each day.
I can change the start time and the duration of the filtering.
So I know that even if I'm not there, the air in the shop is still clean.
But this is not enough.
I also add a dust sensor.
OK this is quite ugly; but it's working great.
Here's a little demonstration with a match.
We can see that the air quality changes because of the smoke.
But smoke is not dust, so I add a small fan to move it around.
And yes the speed is controlled by my controller.
I know this seems like science fiction; but here's a demonstration with my drum sanders.
I put it directly under the sensor and make some dust.
OK, nobody in his right mind would do something like that.
But still, you can see the filtration starts by itself, after ten over the limit readings.
I know what you're thinking, you're saying: "Alain this is fine, but you have two filters"...
And this is the reason why, I soldered two controllers.
On my main controller, I add another Bluetooth module and one on the second controller also.
And now, I can control two modules at the same time.
I like the DOS like interface; but I also programmed a Windows based graphical interface.
This is very convenient, but I won't keep my computer in my shop.
I could use Renée's small laptop, but she wouldn't be happy about it.
So I use MIT App inventor and programme an Android APP that controls the filtration system.
This is more convenient in the shop and I also have the possibilities to change all the settings with it.
I also thought of designing the boards to the standard size of an easy to find box.
A closed box will keep the dust away from the electronics.
But now, I have a lot of leftover PCBs.
So If you're interested in building your own dust controller, contact me.
I know electronics can be boring, that's the reason why I just gave a quick recap of the construction and features of my controllers,
but if many of you are interested in knowing more, I can make a more detailed episode about it.
But don't worry, I still have more woodworking stuff; and you'll be able to see them on The Woodpecker.
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