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      • Display

      This page covers the keyboard.toml configuration for displays. For supported drivers, custom renderers, and the Rust API, see the Display feature documentation.

      [display]

      Configures the display for non-split keyboards. For split keyboards, use [split.central.display] and/or [split.peripheral.display] instead — see Split Keyboard Display.

      Display Fields

      FieldRequiredDefaultDescription
      driverYes—Display driver: ssd1306, sh1106, sh1107, sh1108, or ssd1309
      sizeYes—Display resolution (e.g. "128x64", "128x32")
      rotationNo0Display rotation in degrees: 0, 90, 180, or 270
      rendererNo"LogoRenderer"Renderer to use. Built-in: "OledRenderer", "LogoRenderer". Custom: full Rust path (e.g. "my_crate::MyRenderer")
      render_intervalNo—Poll interval in ms for periodic redraws (animations). Omit for event-driven only
      min_render_intervalNo33Minimum time in ms between event-driven renders. Coalesces rapid events to avoid flickering

      [display.protocol.i2c]

      FieldRequiredDefaultDescription
      instanceYes—I2C peripheral instance (e.g. "I2C0", "I2C1", "TWISPI0")
      sdaYes—SDA pin
      sclYes—SCL pin
      addressNo0x3C7-bit I2C address

      Example

      [display]
driver = "ssd1306"
size = "128x32"
rotation = 0
renderer = "OledRenderer"
min_render_interval = 10

[display.protocol.i2c]
instance = "I2C1"
scl = "PIN_3"
sda = "PIN_2"

      Split Keyboard Display

      In a split keyboard, each half can have its own display. Use [split.central.display] and [split.peripheral.display] — the fields are the same as [display].

      [split.central.display]
driver = "ssd1306"
size = "128x64"
rotation = 0
render_interval = 33
min_render_interval = 10
renderer = "my_crate::DongleRenderer"

[split.central.display.protocol.i2c]
instance = "TWISPI0"
scl = "P0_17"
sda = "P0_20"

[split.peripheral.display]
driver = "ssd1306"
size = "128x32"
rotation = 90
render_interval = 33
min_render_interval = 10
renderer = "OledRenderer"

[split.peripheral.display.protocol.i2c]
instance = "TWISPI0"
scl = "P0_20"
sda = "P0_17"