I'm a newcomer to arduinos and am trying to program two pro minis from different chinese sources and with different board layouts. When I connect power ( 9v to "raw" ), the power leds light and the viltage regulators give 5V and 3.3 respectively. However the pin 13 leds flash continuously, only stopping when the reset button is held down. This seems wrong to me - I think the led should flash once when the reaset button is pressed.
When I try to program the example sketch ' blink ' I get a compiling message, then an uploading, then complete, but also a red avrdude : no sync message. The pin 13 led flashes throughout, and the pro mini does not seem to have been affected by the upload - it does not flas at 1 s rate.
Any ideas please ?