I have just purchased the Arduino Pro Micro 3.3V
the Drivers are correctly installed and the add on for the Sparkfun boards - Device recognized in device manager - all ok
The first time I tried uploading the blink sketch it worked great - LEDs blink as expected.
All subsequent times the upload does not work - the upload starts and the 2 LEDS start to blink very rapidly. Eventually the upload fails with error…Couldn’t find a Board on the selected port. Check that you have the correct port selected.
The LEDs continue to flash rapidly until I reset the board - then it goes back to normal - device recognized.
I can sometimes upload sketches by hitting reset and putting it in bootloader mode - but this method is flaky and difficult.
It absolutely refuses to upload sketches when NOT in bootloader mode.
I am using version 1.8.1 of Arduino and Windows 10
Any help much appreciated
Thanks