I have a PIC project using an LCD.
The back light and LCD are being powered by one of the pins of the PIC.
When the light and LCD are on the whole project draws around 12 ma. When the light and LCD go off the current was jumping to 35 ma!
I noticed that in my code I was still writing to the LCD even though it was off. I changed my code to not write to the LCD. Now with the light off, the project draws about 6 ma.
Why was the project drawing so much when the PIC was writing to the LCD?
Also I noticed that if I turn RS on (RS only), the LCD back light, lights dimly. Why would this be happening?
The back light and LCD are being powered by one of the pins of the PIC.
When the light and LCD are on the whole project draws around 12 ma. When the light and LCD go off the current was jumping to 35 ma!
I noticed that in my code I was still writing to the LCD even though it was off. I changed my code to not write to the LCD. Now with the light off, the project draws about 6 ma.
Why was the project drawing so much when the PIC was writing to the LCD?
Also I noticed that if I turn RS on (RS only), the LCD back light, lights dimly. Why would this be happening?
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