• PTSolns I2C Backpack soldered to 1602 or 2004 LCD, with I2C and power screw terminals and QWIIC connector, supports 3.3V and 5V logic, has contrast and backlight controls, compatible with various microcontrollers.
  • PTSolns I2C Backpack shown with included pin header and 4-pin screw terminal; assembly required before use with compatible LCD modules.
  • PTSolns I2C Backpack supports both 3.3V and 5V logic levels, making it compatible with ESP32, Uno R3, Nano, and other microcontroller common development boards.
  • PTSolns I2C Backpack tech features: compatible with 5V and 3.3V boards via onboard boost converter; supports 1602 and 2004 LCDs; QWIIC and 4-pin screw terminal for I2C; adjustable LCD contrast and brightness; configurable I2C address; oscilloscope pads for SDA/SCL debugging.
  • Example application: PTSolns I2C Backpack connected to a 1602 LCD using the QWIIC connector for easy I2C integration.
  • Package contents: PTSolns I2C Backpack PCB, 4-pin screw terminal, male header. Assembly required.
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I2C Backpack for 1602 and 2004 LCD Kit

I2C Backpack for 1602 and 2004 LCD Kit

$14.99 CAD
$14.99 CAD
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NOTE: For large quantity orders of the I2C Backpack with custom pricing please contact us directly.

This product has a datasheet!

This product has a 3D model!

This product has a custom library!

This product has example sketches!

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About this item

  • What is an I2C Backpack?: Using the I2C protocol to connect a 1602 LCD or 2004 LCD is fast and simple, requiring only two signal wires plus power and ground to interface with the microcontroller development board. The I2C Backpack, which gets soldered onto the back of the LCD, earns its name by providing this streamlined connection.
  • Compatibility: The I2C Backpack features an onboard boost converter, making it compatible with both 3.3V and 5V microcontroller development boards by automatically handling voltage and signal level shifting. This ensures seamless use with 5V boards like the Uno or Nano, as well as 3.3V boards such as the ESP32. Additionally, it offers flexible connectivity options through a 4-pin screw terminal and a QWIIC connector for easy integration into the I2C bus.
  • Packed with Features: This I2C Backpack is loaded with features, including onboard LCD contrast and backlight control, SCL and SDA oscilloscope test pads for easy debugging, a QWIIC connector, configurable I2C address, and more. For a complete list of features, please refer to the datasheet. You can download the “PTSolns_I2CBackpack” library from GitHub or directly through the Arduino IDE Library Manager, which includes several example sketches to help you get started.
  • What’s Included: Each package includes one (1) PTSolns I2C Backpack, one (1) 1x16 Pin Male Header (short pins), and one (1) 4 Pin screw terminal. LCD is not included. This is a kit, soldering is required.
  • PTSolns Customer Support & Resources: We’re here to help. Contact PTSolns support for assistance or technical questions. Every PTSolns product is backed by our comprehensive resource library, including datasheets, schematics, 3D models, Fritzing files, and tutorials. All supporting material is freely available on our “PTSolns Documentation Repository”.

     

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    Product Description

    PTSolns I2C Backpack soldered to 1602 or 2004 LCD, with I2C and power screw terminals and QWIIC connector, supports 3.3V and 5V logic, has contrast and backlight controls, compatible with various microcontrollers.

    An LCD backpack like no other

    The I2C Backpack interfaces the common 1602 LCD and 2004 LCD to a microcontroller development board via the I2C protocol. It is called a "backpack" as it is intended to be soldered right onto the back of the LCD. Onboard the I2C Backpack is a boost converter as well as a logic level shifter. This allows the user to connect an LCD to either a 3.3V or a 5V microcontroller.

    Due to the 3.3V and 5V compatibility, the I2C Backpack works with many common microcontroller development boards including the PTSolns ESP32 microWatt, PTSolns Uno R3+, PTSolns Nano Flip, and a long list of similar boards.

    The user can connect the I2C and power wires either directly to the onboard 4-pin screw terminal or via the onboard QWIIC connector. This makes it convenient to easily daisy-chain other modules and sensors that also use the I2C protocol. The I2C Backpack has LCD contrast and LCD backlight control via onboard potentiometers. The board has eight configurable addresses.

    To use the I2C Backpack the user should install the PTSolns_I2CBackpack library. Various examples and documentation can be found in the library package. The GitHub library can be found here. Simply install it in Arduino IDE and get started!

    This product, along with all of the PTSolns products, comes with a detailed datasheet, and other supporting material. Please view our "PTSolns Documentation Repository" to access these documents.

    Features of the I2C Backpack

    PTSolns I2C Backpack tech features: compatible with 5V and 3.3V boards via onboard boost converter; supports 1602 and 2004 LCDs; QWIIC and 4-pin screw terminal for I2C; adjustable LCD contrast and brightness; configurable I2C address; oscilloscope pads for SDA/SCL debugging.
    The following are highlights of the I2C Backpack. For full details please see the datasheet which can be found in our "PTSolns Documentation Repository".
    • Compatible with 5V and 3.3V microcontroller development board due to the onboard boost converter
    • Compatible with both 1602 LCD and 2004 LCD
    • Compatible with any microcontroller that operates on 3.3V and 5V and has an I2C bus. This includes PTSolns ESP32 microWatt, PTSolns Nano Flip, PTSolns Uno R3+, and a range of many other popular microcontroller development boards.
    • QWIIC connector
    • 4-Pin Screw Terminal for I2C bus
    • LCD contrast adjust
    • LCD brightness adjust
    • I2C address selection
    • SDA and SCL oscilloscope pads for testing and debugging

      What's Included?

      PTSolns I2C Backpack shown with included pin header and 4-pin screw terminal; assembly required before use with compatible LCD modules.
      Each package contains the following items:
      • 1 pc PTSolns I2C Backpack PCB
      • 1 pc 1x16 Pin Male Header (short pins)
      • 1 pc 4-Pin Screw Terminal
        NOTE: LCD is not included. This is a kit, soldering is required.

        Other Names

        • I2C Backpack
        • PTS-00166-111
        • PTS-00166-211

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