those 40 khz should I play with them through pwm or with electronics to create a driver that sends 40.000 hz to the transmitter ? and if yes do you know of any schematic that does something like that and it is compatible with arduino ?
those 40 khz should I play with them through pwm or with electronics to create a driver that sends 40.000 hz to the transmitter ? and if yes do you know of any schematic that does something like that and it is compatible with arduino ?