arduino_serial_monitor
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Arduino Serial monitor and interface
See also:
- Serial communication in the Arduino reference
Restarts
The Arduino UNO keeps rebooting and thus running void setup(). This can happen after the ATmega 328p has been flashed. Turn the Arduino UNO off and on to resolve the issue
It is normally not the watchdog timer reset: wdt_reset();
On a terminal
In stead of using the Arduino serial monitor one can use a terminal in Linux:
screen /dev/ttyUSB0 57600
seems to block the serial interface. When this happens it can be solved
- close the screen command
- close the terminal window in which screen was running
- close the Arduino IDE
- close the text editor if you are using it instead of the Arduino IDE
- disconnect the USB cable
- reconnect the USB cable
- start the Arduino IDE.
Connection check
if (Serial) { Serial.printnl(The link is up); } while (!Serial) { // Wait for the link to become up delay(100); }
Serial.read
println()
This does not work
int j=7 k-8; Serial.println("j: " + j + "\tk: " + k);
use
int j=7 k-8; String js = "j: "; String ks = "\tk: "; Serial.println(js + j + ks + k);
instead
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arduino_serial_monitor.txt · Last modified: 18-06-2020 09:58 by wim