79 lines
2.4 KiB
Markdown
79 lines
2.4 KiB
Markdown
# ESPHome Custom Components
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A collection of custom components for [ESPHome](https://esphome.io), loaded via
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[`external_components`](https://esphome.io/components/external_components/).
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## Usage
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Reference this repository (or a local checkout of it) in your device configuration:
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```yaml
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external_components:
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# from a local checkout
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- source:
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type: local
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path: /path/to/esphome_custom/components
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components: [spi_led_strip]
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# or from the git repository
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- source:
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type: git
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url: https://git.mindplots.home-webserver.de/esphome/custom-components.git
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ref: main
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components: [spi_led_strip]
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```
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*Note:* Listing a component under `components:` overrides an ESPHome built-in component with the same name.
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## Components
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| Component | Platform | Description |
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|-----------|----------|-------------|
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| [`spi_led_strip`](#spi_led_strip) | `light` | Addressable LED strips driven over SPI (APA102, WS2801) |
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---
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### `spi_led_strip`
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An addressable light for LED strips with separate clock and data lines, driven over the
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[SPI bus](https://esphome.io/components/spi/). It is based on ESPHome's built-in
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`spi_led_strip` and adds support for the **WS2801** chipset next to **APA102**.
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| Chipset | Frame format | SPI mode |
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|----------|--------------|----------|
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| `APA102` (default) | 4-byte start frame, `0xFF` + B, G, R per LED, 4-byte end frame | default (`MODE3`) |
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| `WS2801` | R, G, B per LED, no framing; data latches when the clock stays low for 500 µs | `MODE0` (clock idles low) |
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The component exposes an RGB light and supports all
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[addressable light effects](https://esphome.io/components/light/#light-effects).
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**Configuration variables**
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- **chipset** (*Optional*, string): `APA102` or `WS2801`. Defaults to `APA102`.
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- **num_leds** (*Optional*, int): Number of LEDs in the strip. Defaults to `1`.
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- **data_rate** (*Optional*): SPI clock frequency. Defaults to `1MHz`.
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- **spi_id** (*Optional*, ID): The SPI bus to use, if more than one is configured.
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- All other options from [Light](https://esphome.io/components/light/#config-light).
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The strip has no chip select line, so `cs_pin` is not required.
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**Example**
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```yaml
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spi:
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clk_pin: GPIO18
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mosi_pin: GPIO23
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light:
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- platform: spi_led_strip
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name: "WS2801 Strip"
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chipset: WS2801
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num_leds: 32
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data_rate: 1MHz
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effects:
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- addressable_rainbow:
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- addressable_scan:
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```
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For an APA102 strip, omit `chipset` (or set it to `APA102`).
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