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Hi!In the part list, there is 5W electromagnet, You are use HCNE1-P49/21, it is 10W.5W is 100N, 10W is 400N.
Wireless Arduino Display With 315mhz RF Modules
Sphere trapped in A Cube Modeled with TINKERCAD
Now I want a laser cutter. I might 3D print out though. Great Job
If you get a good enclosure with USB 3.0, you get faster speeds, but also nearly double the current. USB 3.0 can deliver up to 900ma, vs the measly 500ma of USB 2.0
Good Job! That's so cool
This is so cool! I could think of so many users for a volume controlled water supply.
Please pm me, and I will give it to you
IBoardbot. The internet controlled whiteboard robot
Cool Idea. as for your problem with two people exiting at the same time, or someone standing in the doorway, you could implement a PIR sensor. This way, you would at least know once everybody is out, and the "person counter" could reset.
Potentiometer trigger 3d printed stackable
in your step three image, i think you might have a mistake. it shows that you can put up to 35 volts into the Arduino. The limit for the Arduino voltage regulator is 20 volts, but Arduino.cc recommends up to 12 volts.
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