Dear Darrel,

Thousand thanks to your reply. I really appreciate your help and I'm now going to try the method you mention. Before that, I've encountered that when the circuit is power on, there's 5V in the OEI pin of a6280. I don't really understand how to operate with OE. Do I need to sink it to ground with a resistor in order for the LED to light up? Please kindly advise. Thanks & hope u enjoy your weekend.

Warmest Regards,
Kevin Loh