bskari / pi-rc

Turn your Raspberry Pi into a radio controller for RC toys.
GNU General Public License v2.0
139 stars 38 forks source link

2.4 GHz? #27

Closed anishanne closed 4 years ago

anishanne commented 6 years ago

My RC car runs on 2.4 GHz, what should I do?

gideongrinberg commented 4 years ago

@anishanne I have this issue too. 2.4 GHz is 2400 MHz, which seems wrong for watch.html. Maybe someone else knows. Have you tried 24 MHz or 2400 MHz?

bskari commented 4 years ago

Unfortunately, due to how the signal is generated, the Pi can't generate signals over 250 MHz. In order to get a consistent signal, we need to use the Pi's DMA controller, which is clocked at 500 MHz. Because you need to turn the pin off and on to generate a signal, the fastest you can do as 250 MHz. 2.4 GHz will likely never be possible.