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nikivanov / watney

Watney is a low-cost 3D-printable FPV rover
GNU General Public License v3.0
384 stars 39 forks source link

LED lights #1

Closed cyroassis closed 6 years ago

cyroassis commented 6 years ago

Do you think it's possible to set a GPIO pin to turn on and off some LED headlights?

nikivanov commented 6 years ago

I don't see why not. For simplicity, I powered the motor controller through Raspberry Pi's 5V pins. They are supposed to limit the current to 800mA. Using a cheap USB ammeter, I saw that the rover takes about 600-700mA while running at full speed, so you don't have a ton of wiggle room. Then again, if you stall the wheels, I saw consumption of up to 1.1A, which should have tripped RPI's 5V fuse, but it didn't. LEDs don't need much to run, so you should be ok.