I2C 20x4 Character LCD Module - 3.3V

This is another great 20x4 character LCD display with I2C interface that runs at 3.3V. As the pin resources of Arduino or Raspberry Pi controller is limited, your project may be not able to use standard LCD module after connected with a certain quantity of sensors or SD card. However, with this I2C interface LCD module, you will only need 2 pins (SCL and SDA) to display the information. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino and Raspberry Pi based project.

Features:

• Display - 20 characters per row, 4 rows
• Supply voltage - 3.3VDC
• Back lit (Green with black char color)
• Interface - I2C, default address: 0x3F or 0x27
• Adjustable contrast
• Backlight defaults off, and can be turned on under software control

Documents:

• Arduino library (Github)
• Raspberry Pi (Python)
• Schematic