Hi everyone!
I am wondering about blink LED, can we turn on and turn off LED equal to speed of Baud Rate (115200 bit/second).
If answer is YES, How to do that?
Thanks in advance.
About every 9us?
Why do you want to do this?
You can use a timer or roughly with micros().
#include <TimerOne.h>
void setup()
{
pinMode(9,OUTPUT); //LED (with resistor) on pin 9, UNO
Timer1.initialize(17); //~59khz
Timer1.pwm(9,512); //50% DC (8.5us on 8.5us off)
}
void loop()
{
}
LarryD:
#include <TimerOne.h>
void setup()
{
pinMode(9,OUTPUT); //LED (with resistor) on pin 9, UNO
Timer1.initialize(17); //~59khz
Timer1.pwm(9,512); //50% DC (8.5us on 8.5us off)
}
void loop()
{
}
and get your scope out if you want to observe anything!
Thank for responses.
I use Arduino Mega 2560, So which pin can be used to replace pin 9 in UNO.
Another thing, If I want to blink LED on that pin by a array of binary bits, which command can be used?
I do not have a Mega, others will chime in.
Thank for responses.
But you won't respond.
Why do you want to do this?
Hi LarryD
I have a project with VLC communication. In order to get a high performance of communication, so I have to blink LED with high frequency (it may be equal to baud rate). For example. A text is sent from Serial monitor to arduino, arduino received this string and then convert to Binary bits, a LED is used to blink based on these bits. With low frequency I use DigitalWrite to do this, it is OK but with high frequency I have not done yet.