Introduction: Interfacing I2C LCD With STM32 Black Pill Using STM32CubeIDE

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In this tutorial, we'll use an STM32 Black Pill to program an I²C LCD on STM32CubeIDE using HAL programming.

Supplies

  1. STM32 Black Pill
  2. LCD with I2C
  3. Female to Female Jumpers
  4. STMCubeIDE
  5. STMCubeProgrammer
  6. USB C Cable


Step 1: Project Creation

  • Create a new STM32 project from File > New > STM32 Project
  • Select the appropriate board.


Step 2: Pinout Selection

  • Go to Connectivity > I2C1 and enable it. This will set SDA to pin 43 and SCL to pin 42.\
  • Go to System Core > RCC > HSE > Crystal/Ceramic Resonator.


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Step 3: Clock Configuration

  • Configure your board's clock.
  • Save using Ctrl + S.


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