There might be something wrong with this arduino board. It worked fine earlier, but I’m having a really difficult time getting it to work consistently. Sometimes it will connect sometimes it won’t.
Its connected on com3 and shows up in device manager now but I get this error when I try to flash it from the arduino IDE.
Sketch uses 104098 bytes (40%) of program storage space. Maximum is 253952 bytes.
Global variables use 4633 bytes (56%) of dynamic memory, leaving 3559 bytes for local variables. Maximum is 8192 bytes.
avrdude: ser_open(): can’t open device “\.\COM3”: Access is denied.
avrdude: ser_drain(): read error: The handle is invalid.
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: The handle is invalid.
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: The handle is invalid.
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: The handle is invalid.
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: The handle is invalid.
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: The handle is invalid.
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: The handle is invalid.
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer
the selected serial port avrdude: stk500v2_getsync(): timeout communicating with programmer
does not exist or your board is not connected
processing.app.SerialException: Error opening serial port ‘COM3’.
at processing.app.Serial.<init>(Serial.java:147)
at processing.app.Serial.<init>(Serial.java:82)
at processing.app.SerialMonitor$4.<init>(SerialMonitor.java:101)
at processing.app.SerialMonitor.open(SerialMonitor.java:101)
at processing.app.AbstractMonitor.resume(AbstractMonitor.java:104)
at processing.app.Editor.resumeOrCloseSerialMonitor(Editor.java:2218)
at processing.app.Editor.access$2200(Editor.java:79)
at processing.app.Editor$DefaultExportHandler.run(Editor.java:2196)
at java.lang.Thread.run(Thread.java:748)
Caused by: jssc.SerialPortException: Port name - COM3; Method name - openPort(); Exception type - Port busy.
at jssc.SerialPort.openPort(SerialPort.java:164)
at processing.app.Serial.<init>(Serial.java:136)
… 8 more
Error opening serial port ‘COM3’.