esp-web-tools/README.md
2021-06-14 08:03:44 -07:00

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# ESP Web Tools
Allow flashing ESPHome or other ESP-based firmwares via the browser. Will automatically detect the board type and select a supported firmware.
```html
<esp-web-install-button
manifest="firmware_esphome/manifest.json"
></esp-web-install-button>
```
Manifest definition:
```json
{
"name": "ESPHome",
"builds": [
{
"chipFamily": "ESP32",
"improv": true,
"parts": [
{ "path": "bootloader.bin", "offset": 4096 },
{ "path": "partitions.bin", "offset": 32768 },
{ "path": "ota.bin", "offset": 57344 },
{ "path": "firmware.bin", "offset": 65536 }
]
},
{
"chipFamily": "ESP8266",
"parts": [
{ "path": "esp8266.bin", "offset": 0 },
]
}
]
}
```
Allows for optionally passing an attribute to trigger an erase before installation.
```html
<esp-web-install-button
manifest="firmware_esphome/manifest.json"
erase-first
></esp-web-install-button>
```
All attributes can also be set via properties (`manifest`, `eraseFirst`)
## Styling
### Attributes
The following attributes are automatically added to `<esp-web-install-button>` and can be used for styling:
| Attribute | Description |
| -- | -- |
| `install-supported` | Added if installing firmware is supported
| `install-unsupported` | Added if installing firmware is not supported
| `active` | Added when flashing is active
You can add the following attributes or properties to change the UI elements:
| Attribute | Property | Description |
| -- | -- | -- |
| `show-log` | `showLog` | Show a log style view of the progress instead of a progress bar
| `hide-progress` | `hideProgress` | Hides all progress UI elements
### CSS custom properties (variables)
The following variables can be used to change the colors of the default UI elements:
- `--esp-tools-button-color`
- `--esp-tools-button-text-color`
- `--esp-tools-success-color`
- `--esp-tools-error-color`
- `--esp-tools-progress-color`
- `--esp-tools-log-background`
- `--esp-tools-log-text-color`
### Slots
The following slots are available:
| Slot name | Description |
| -- | -- |
| `activate` | Button to start the flash progress
| `unsupported` | Message to show when the browser is not supported
| `not-allowed` | Message to show when not a secure context
## Events
When the state of flashing changes, a `state-changed` event is fired.
A `state-changed` event contains the following information:
Field | Description
-- | --
state | The current [state](https://github.com/esphome/esp-web-tools/blob/main/src/const.ts)
message | A description of the current state
manifest | The loaded manifest
build | The manifest's build that was selected
chipFamily | The chip that was detected;&nbsp;"ESP32" \| "ESP8266" \| "ESP32-S2" \| "Unknown Chip"
details | An optional extra field that is different [per state](https://github.com/esphome/esp-web-tools/blob/main/src/const.ts)
## Development
Run `script/develop`. This starts a server. Open it on http://localhost:5000.