To display the caller’s information, [Dilshan] is using an Arduino Uno and common 16×2 HD44780 LCD. As a nice touch, the code will even blink the Arduino’s onboard LED when you’ve missed a ...

I wrote a driver for an HD44780 clone and had the same problem on board reset. The only solution I found was to transistorize the power to the display, and turn it on with software after the mcu ...