Recently i brought a arduino nano clone(ch340) for the first 2 months it worked fine but now it doesnt work on baud 9600 but it works on other baud rates. And while working on other baud rates it abruptly stops communicating with my pc.
Any insight abut the situation will be very useful.
Sure. Might be easier to provide useful insight, however, if we had a schematic and your code.
void setup() {
Serial.begin(9600);// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
Serial.print("hello ");
delay(1000);
}
this it works with other baud rates but not 9600
it used to work with 9600
No issue with code. What are you powering your Nano with? What is it connected to? What are the power requirements of the device attached?
If it's a Nano clone hanging on the end of a USB cable, you either have a flaky Nano or a flaky cable or a flaky USB port, assuming it isn't a software issue on your PC.
Have you tried another Nano? Seriously, if it is at all suspect, try another one. They're cheap!
there is nothing that is attached to the nano and i tried it with another cable and still the same thing. But i problem is why only 9600 stopped working and why did others work. I dont think there is problem with my pc cuz it works with my other Arduinos.
There is no reason I am aware of for 9600 to not work but higher bauds do. Even the usual 'missing ground' isn't a source for this sort of issue. Some baud rates are closer to ideal frequencies than others(has to do with dividing a 16 MHz clock by an integer). Clock drift should, at the lower frequencies, have about the same effect.
See the discussion here
for more on that topic, if you wish.
But 9600 should be good.
As I said, it's probably best to just toss it.
ok then i guess ill work with higher baud rates.
and a huge thanks for the advice.
Any change if you add a delay?
Serial.begin(9600);
delay(200); // or more
nope
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