Avoid damage when you power on for the first time
Have you ever experience at one point where you already finished building something and that baby looked so lit? Then you will just examine it and you don’t see anything wrong, and by the time you plugged it in it, BANG BENG BOOM! Instantly, your plans and dreams just disappeared in a poof of smoke! Now you need to tear that thing down and you saw a roasted ESC! And now you will wait for a new one to come, and this is where we introduce to you, the Smoke Stopper!
Easy to build
Here’s how this baby works, it’s really simple: You build the smoke stopper with the power connectors that you already use and a light bulb. After building, modifying or repairing your build, you can plug this in between your battery and the Quad to test for shorts.
The smoke stopper can be used with a 2S, 3S or even with a 12V Workbench Power Supply.
Don’t use higher than 3S or 14V power for testing. Using 4S and 6S batteries will blow your bulbs.
Bulbs limit current?
Believe it or not, you can use a light bulb as an effective current limiter! A bulb has a thin wire/filament that when enough current is passed through it the bulb will illuminate. When the light turns on it will restrict the current flow. Your light bulb’s wattage rating divided by your voltage of your battery roughly determines the maximum amount of your current.
How to calculate a bulbs current limit
Bulbs wattage (W) / Voltage of your battery (V) = Current limit (A)
Smaller Wattage for smaller loads
Small wattage light bulbs can be used for a low current limit. We recommend you automotive bulbs: 3057, 4157, 1157, and 3157. All of these will startup the FC but if you try to spin the motors you will make the bulb glow and limit the current.
When you have a short
If you also have a short, the bulb will likely blow as the current will be too great for the thin filament to handle. A smoke stopper is essentially a fuse, it blows so your components don’t.
Useful but not 100%
Always remember that bulbs only LIMIT the electrical flow NOT STOP it. This means that there are situations where your circuits get fried by the continuous flow of power that is caused by an incorrectly wired quadcopter. D
Its that easy
So this is the Smoke Stopper ladies and gentlemen! Be safe in limiting your electrical appliances, mates! Save your electricity by using the Smoke Stopper! Do not fear because the Smoke Stopper is here! Peace out and be safe!