PlantCtrl/esp32/host/Readme.md

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# Configuration
## File
Generate a file as, described in
https://homieiot.github.io/homie-esp8266/docs/3.0.0/configuration/json-configuration-file/
For further details have a look at the Readme.md one level above.
## Upload
* Start ESP
* Login to Wifi, opened by the ESP
* Use the script to upload the configuration file
* restart the ESP
# Remote Upload
This script will allow you to send an OTA update to your device.
## Installation
Requirements are:
* paho-mqtt
## Usage
```text
usage: ota_updater.py [-h] -l BROKER_HOST -p BROKER_PORT [-u BROKER_USERNAME]
[-d BROKER_PASSWORD] [-t BASE_TOPIC] -i DEVICE_ID
firmware
ota firmware update scirpt for ESP8226 implemenation of the Homie mqtt IoT
convention.
positional arguments:
firmware path to the firmware to be sent to the device
arguments:
-h, --help show this help message and exit
-l BROKER_HOST, --broker-host BROKER_HOST
host name or ip address of the mqtt broker
-p BROKER_PORT, --broker-port BROKER_PORT
port of the mqtt broker
-u BROKER_USERNAME, --broker-username BROKER_USERNAME
username used to authenticate with the mqtt broker
-d BROKER_PASSWORD, --broker-password BROKER_PASSWORD
password used to authenticate with the mqtt broker
-t BASE_TOPIC, --base-topic BASE_TOPIC
base topic of the homie devices on the broker
-i DEVICE_ID, --device-id DEVICE_ID
homie device id
```
* `BROKER_HOST` and `BROKER_PORT` defaults to 127.0.0.1 and 1883 respectively if not set.
* `BROKER_USERNAME` and `BROKER_PASSWORD` are optional.
* `BASE_TOPIC` has to end with a slash, defaults to `homie/` if not set.
### Example:
```bash
python ota_updater.py -l localhost -u admin -d secure -t "homie/" -i "device-id" /path/to/firmware.bin
```
The Parameter can be extracted from the serial console
```serial
{} Stored configuration
• Hardware device ID: 12345abcd
• Device ID: MyDeviceId
• Name: MyDeviceName
• Device Stats Interval: 60 sec
• Wi-Fi:
◦ SSID: MyWifi
◦ Password not shown
• MQTT:
◦ Host: 192.168.0.2
◦ Port: 1883
◦ Base topic: /test/
◦ Auth? no
```
will result in the following command (when executed in this folder):
```bash
python ota_updater.py -l 192.168.0.2 -t "/test/" -i "MyDeviceId" ../.pio/build/esp32doit-devkit-v1/firmware.bin
```
### Source
https://github.com/homieiot/homie-esp8266/blob/develop/scripts/ota_updater