I connect as you said and it works, thanks a lot, but could I adjust the contrast using variable resistor?Connect a 1kΩ resistor from pin-3 (contrast) to pin-1 (Vss).
Yes you can do that. Use a 10K variable resistor. Connect one end to power and the other end to ground(GND). Then connect the wiper to the contrast input pinI connect as you said and it works, thanks a lot, but could I adjust the contrast using variable resistor?
I have never experienced this behavior.Often times you need up to a second delay before doing anything with the LCD after powerup.
It might be a good idea to get into the habit of waiting a second in your code after the pin assignments before sending any data.
I have never experienced this behavior.
You can power it through the microcontroller (digital IO)Often times you need up to a second delay before doing anything with the LCD after powerup.
It might be a good idea to get into the habit of waiting a second in your code after the pin assignments before sending any data.
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