Great moment this afternoon when the Automatic Loop Controller fired up as it should. Happy days.
When I first fired it up, after loading up the Arduino program, all I could see was a dull green glow on the screen. It wasn’t until I remembered a comment from another builder about adjusting the potentiometer on the PCB that controls the LCD contrast.
It was a great relief that my slow and deliberate build – double checking all component values and joints – paid off. Next step is to build the SWR bridge and connect to the stepper motor on the loop.