mqtt message documentatin

This commit is contained in:
Romain Bazile 2020-09-28 14:18:14 +02:00
parent 73edb84226
commit 025372ab2c

View file

@ -1 +1,175 @@
# Details about used MQTT messages # Details about used MQTT messages
## Topic lists
- [`actuator`](#actuator)
- [`actuator/pump`](#actuatorpump)
- [`actuator/focus`](#actuatorfocus)
- [`imager/image`](#imagerimage)
- [`segmenter/segment`](#segmentersegment)
- [`status`](#status)
- [`status/pump`](#statuspump)
- [`status/focus`](#statusfocus)
- [`status/imager`](#statusimager)
- [`status/segmenter`](#statussegmenter)
- [`status/segmenter/name`](#statussegmentername)
- [`status/segmenter/object_id`](#statussegmenterobject_id)
- [`status/segmenter/metric`](#statussegmentermetric)
## Topic details
### `actuator`
#### `actuator/pump`
Control the movement of the pump. The message is a JSON object:
```json
{
"action": "move",
"direction": "FORWARD",
"volume": 10,
"flowrate": 1
}
```
This messages make the pump move 10mL forward at 1mL/min.
Another supported message is:
```json
{
"action": "stop"
}
```
- Receive only
#### `actuator/focus`
Control of the focus stage. The message is a JSON object, speed is optional:
```json
{
"action": "move",
"direction": "UP",
"distance": 0.26,
"speed": 1
}
```
This message makes the stage move up by 10mm.
Another supported message is:
```json
{
"action": "stop"
}
```
- Receive only
### `imager/image`
This topic controls the camera and capture. The message allowed is a JSON message:
```json
{
"action": "image",
"sleep": 5,
"volume": 1,
"nb_frame": 200
}
```
Sleep in seconds and volume in mL.
This topic can also receive a config update message:
```json
{
"action": "config",
"config": {...}
}
```
A camera settings message can also be received here. The fields `iso` and `shutter_speed` are optionals:
```json
{
"action": "settings",
"iso": 100,
"shutter_speed": 40
}
```
- Receive only
### `segmenter/segment`
This topic controls the segmentation process. The message is a JSON object:
```json
{
"action": "segment"
}
```
`action` can also be `stop`.
- Receive only
### `status`
This high-level topic is used to send information to the Node-Red process. There is no publication or receive at this level.
#### `status/pump`
State of the pump. It's a JSON object with:
```json
{
"status": "Started",
"duration": 25
}
```
Duration is a best guess estimate. It should not be used to control the other events. If you want to wait for a movement to finish, the best thing to do is to wait for the message `Done`.
Status can be `Started`, `Ready`, `Done`, `Interrupted`, `Error`, `Dead`.
- Publish only
#### `status/focus`
State of the focus stage. It's a JSON object with:
```json
{
"status": "Started",
"duration": 25
}
```
Duration is a best guess estimate. It should not be used to control the other events. If you want to wait for a movement to finish, the best thing to do is to wait for the message `Done`.
Status is one of `Started`, `Ready`, `Done`, `Interrupted`, `Error`, `Dead`.
- Publish only
#### `status/imager`
State of the imager. It's a JSON object with:
```json
{
"status": "Started",
"time_left": 25
}
```
Status is one of `Started`, `Ready`, `Completed` or `12_11_15_0.1.jpg has been imaged`.
- Publish only
#### `status/segmenter`
Status of the segmentation. It's a JSON object with:
```json
{
"status": "Started",
}
```
`status` is one of `Started`, `Done`, `Interrupted`, `Busy`, `Ready` or `Dead`.
- Publish only
#### `status/segmenter/object_id`
```json
{
"object_id": "13449"
}
```
#### `status/segmenter/metric`