Ken Van Hoeylandt
49 lines
1.9 KiB
YAML
49 lines
1.9 KiB
YAML
description: Solomon Systech SSD1306 monochrome OLED display panel (I2C interface)
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include: ["i2c-device.yaml"]
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compatible: "solomon,ssd1306"
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bus: i2c
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properties:
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horizontal-resolution:
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type: int
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required: true
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description: Horizontal resolution in pixels (typically 128)
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vertical-resolution:
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type: int
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required: true
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description: Vertical resolution in pixels (typically 32 or 64)
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invert-color:
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type: boolean
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default: false
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description: Invert the panel's color output
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pin-reset:
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type: phandles
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default: GPIO_PIN_SPEC_NONE
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description: Reset GPIO pin
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power-on-delay-ms:
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type: int
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default: 0
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description: >
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Extra delay before reset/init, in milliseconds. Useful when the panel's power rail is
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gated by a gpio-hog node: devicetree devices (including gpio-hog) are constructed and
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started during kernel_init(), with no built-in settle time between one device starting
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and the next, so a panel whose power was only just enabled a moment earlier may need this
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to let its rail stabilize before communication starts. 0 (the default) adds no delay.
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init-sequence:
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type: array
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element-type: uint8_t
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description: >
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Custom vendor bring-up sequence: a flat list of command bytes, each sent as its own
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single-byte SSD1306 command (some standalone, some acting as a parameter to the byte
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before them - this chip's protocol doesn't distinguish the two at the wire level, and
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neither does this encoding). Omit to use the SSD1306 component's own generic
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esp_lcd_panel_init() sequence instead - note that some panels are known not to
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initialize correctly through it (see e.g. the Heltec WiFi LoRa 32 V3's own required
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override), so most boards should supply their own sequence here.
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# No 'backlight' property: SSD1306 is a self-emitting OLED panel with no backlight to control,
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# unlike this repo's other display bindings.
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