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This LCD can display 20 characters by 4 rows and has a nice illuminated backlight.
Controlled over I2C its quick to get going and only requires 4 wires to be connected in total. The controller board also has a potentiometer to change the contrast.
We also have merged some Tutorials and code on Bitbucket @ https://bitbucket.org/ryanteckltd/16x2-python-i2c-lib , Thanks to Recantha for his great tutorial.
We have tested this screen with a Raspberry Pi Model B (Rev 1), wiring is simple by connecting:
Ground to Ground on the Raspberry Pi (Third down on top Right / Pin Number 6)
5V to 5V on the Raspberry Pi (First or Second down on top Right / Pin Number 2 or 4)
SDA to SDA on the Raspberry Pi (Second down on top Left / Pin number 3)
SCL to SCL on the Raspberry Pi (Third down on top Left / Pin number 5)