Hi, I made a project about servo positioning according to the some inputs via nano board. It was running and there was not any trouble. Lastly, I added a Dwin HMI to my system via serial communication for entering and checking some parameters from screen. When I activated this HMI hardware commun…

Hım ok. I was thinking as they are soft. Actually, i did not make any definition about that pins as software serial. I changed mySerial.write//read parts as Serial.write/read. And i replaced dwin RX TX cable from pin2&3 to pin0&1 and it works.

[image] hasangezginci: So how i can define them? You don't need to. Hardware serial is fixed at pins 0 and 1. You just use Serial.print to send data to the display

So why does it not run at pin2&pin3? Is there any guess?

People have reported that software serial interferes with servo because it blocks the servo software from updating.

How can we solve this problem Jim? Do you know any method?

This might help, though I haven't tried it myself. [image] Yet another Software Serial Programming In a recent Thread the usual complaints were made about the SoftwareSerial library not functioning alongside the Servo library. In Reply #17 @oric_dan suggested a limited ver…

[image] hasangezginci: How can we solve this problem Jim? Do you know any method? Just use hardware serial. Is there a problem with using hardware serial?

Jim is correct, the simplest solution would be to not use SerialMonitor, and use the hardware serial for your terminal. Does make debugging an order of magnitude harder, though. Other alternative would be to switch to some other Arduino, like a Mega, or Every, that have multiple hardware serial.

I tried hardware serial. First, there was not any problem. But I have to add one IR sensor to my project. When I add it and send its data to screen continueously, same problem happened. As you said, when the data is tranmitting or receiving over serial, servo signals are interfering. In short, sit…

[image] hasangezginci: But I have to one IR sensor to my project. When I add it and send its data to screen continueously, same problem happened. I don't see IR in your code or diagram Now, you need to post a wiring diagram of your entire circuit and complete code. Please explain what this …

Servo Motor Twitching & Not Positioning Problem with HMI

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camsysca November 14, 2024, 2:25pm 18

This might help, though I haven't tried it myself.

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Servo Motor Twitching & Not Positioning Problem with HMI

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