Hi Guys,
I just brought GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT https://www.adafruit.com/products/438, But I DON'T KNOW how to connect these pins: B-, G-,A+,R- to Arduino to change its backlight colour, can anyone help me thank you!
GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT
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- Franklin97355
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Re: GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT
According to this datasheet http://www.adafruit.com/datasheets/TG12 ... N_V1.0.pdf the A+ goes to 5vdc and the other three (R,G,B) would go to pwm pins to control the rgb LEDs. What are you trying to hook this up to?
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- Posts: 4
- Joined: Tue Jun 17, 2014 10:27 am
Re: GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT
I wanna connect it to Arduino mega
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- Posts: 4
- Joined: Tue Jun 17, 2014 10:27 am
Re: GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT
I wanna connect it to Arduino mega, Do i need to add 270ohm resistors to A+?franklin97355 wrote:According to this datasheet http://www.adafruit.com/datasheets/TG12 ... N_V1.0.pdf the A+ goes to 5vdc and the other three (R,G,B) would go to pwm pins to control the rgb LEDs. What are you trying to hook this up to?
- Franklin97355
- Posts: 23940
- Joined: Mon Apr 21, 2008 2:33 pm
Re: GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT
According to page 4 the red LED takes less voltage to light so you might want to put the resistors on the LED -side and adjust their value to get a balanced light output. Also on page 6 it shows the Anode voltage as 3v so be careful connecting things as you are testing.
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- Joined: Tue Jun 17, 2014 10:27 am
Re: GRAPHIC ST7565 NEGATIVE LCD (128X64) WITH RGB BACKLIGHT
Do I need a voltage level shifter 4050 for the 3 PWN pins from 5v to 3.3 V?franklin97355 wrote:According to page 4 the red LED takes less voltage to light so you might want to put the resistors on the LED -side and adjust their value to get a balanced light output. Also on page 6 it shows the Anode voltage as 3v so be careful connecting things as you are testing.
Please be positive and constructive with your questions and comments.