In my design I use 16X2 LCD in 4bit mode.
From controller to LCD it uses a 1Feet ribbon cable.
My LCD code works nicely but the only problem is when relays & contactors operating the LCD shows unseen characters & sometimes the LCD got blanked.
I have placed 1N4007 across relays.
How do I overcome this problem?
From controller to LCD it uses a 1Feet ribbon cable.
My LCD code works nicely but the only problem is when relays & contactors operating the LCD shows unseen characters & sometimes the LCD got blanked.
I have placed 1N4007 across relays.
How do I overcome this problem?