Search found 4 matches
- Mon Jun 30, 2014 12:01 pm
- Forum: Project Talent Show
- Topic: Serial Interface IIC I2C TWI 2004 204 20x4 LCD Dis
- Replies: 9
- Views: 214148
Re: Serial Interface IIC I2C TWI 2004 204 20x4 LCD Dis
Thank you. I tried the Sketch in the link you supplied. Since it was for a 16x2 display, I changed the code from LiquidCrystal_I2C lcd(0x27,16,2); to LiquidCrystal_I2C lcd(0x27,24,4); Either way, it does not work. I get the same result as I specified in my first post. Sample Sketch for 24x4 Display....
- Mon Jun 30, 2014 11:26 am
- Forum: Open Hardware
- Topic: Serial Interface IIC I2C TWI 2004 204 20x4 Char LCD Dis
- Replies: 3
- Views: 7983
Re: Serial Interface IIC I2C TWI 2004 204 20x4 Char LCD Dis
I don't have picture. I have checked connections. They are OK.
Please just send sample Arduino Sketch.
Please just send sample Arduino Sketch.
- Sun Jun 29, 2014 12:04 pm
- Forum: Open Hardware
- Topic: Serial Interface IIC I2C TWI 2004 204 20x4 Char LCD Dis
- Replies: 3
- Views: 7983
Serial Interface IIC I2C TWI 2004 204 20x4 Char LCD Dis
I'm having trouble getting this display to work. I am using it with an Arduino Uno and an Arduino Duemillenova with the same result. I have loaded a "Hello World" test Sketch. The unit displays two rows of block characters (all pixels on) on the first and third rows. The backlight will blink once br...
- Sat Jun 28, 2014 9:09 am
- Forum: Project Talent Show
- Topic: Serial Interface IIC I2C TWI 2004 204 20x4 LCD Dis
- Replies: 9
- Views: 214148
Serial Interface IIC I2C TWI 2004 204 20x4 LCD Dis
Just got this 20x4 LCD board (JND2004A) with your GEEETECH LCD1602 Serial interface module. I can't get it to work with any of the sample ("Hello World") Arduino sketches I can find on line. All I get is 2 lines of block characters (all pixels on) - looks like the first and third line. The back-ligh...