On my pcb (with proper 5V input) the onboard LED is flashing for around 30 seconds and then the script starts properly.
If I put the BLE Nano v2 into programming module it starts promptly.
What might cause this delay? What is a fast flashing LED meaning?
Pins 1 to 5 are used as Analogue input
D6, D7, D8, D9 are digital outputs.