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Configuring.esp32.md

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Configuring esp32

First install

  • prepare esp32 device and USB cable

  • initiate esp32 installation using esphome web

  • connect your device to the usb cable and into the computer

  • press Connect in esphome web, wait until it configures the device

Run esphome

  • the easiest is to run container with esphome and use it for device config, notice that docker-compose in the project already has it added

  • go to the esphome dashboard on 0.0.0.0:6052 and in top right corner press secrets and copy/paste there below section with updated values:

    # Your Wi-Fi SSID and password
WIFI_SSID: "your-wifi-ssid"
WIFI_PASS: "your-wifi-password"
DOMAIN: ".local"

    and then click save

  • new device should show up - press adopt and configure it as in the next step

Install firmware on the device

  • press Edit on the device

  • copy paste code from ../esphome/esp32-camera.yaml

  • edit entries such as device name, make sure to alter entries in esp32_camera section (depending on camera you need to change it) such as resolution etc.

  • edit GPIO12 if you used different pin for green led

  • edit GPIO13 if you used different pin for physical button

  • edit GPIO14 if you used different pin for red led

  • edit mqtt.broker address to the corresponding address, especially if using different broker, this must be and address of the broker (DNS or IP address) which is reachable from esp32 device over the network, so if you run mqtt in docker then it must be the IP address of the host which runs mqtt container and must be reachable from wifi network that esp32 is connected to

  • edit esp32-wrover-0461c8/led_green and esp32-wrover-0461c8/led_red mqtt topic to your needs, it must be the same as in Node-RED flow config

  • check code for correctness and save it - esphome web ui should automatically do this

  • install code over web, wait for code upload to the esp32 device

  • go to esp32 address in your browser (ESP32_CAMERA_ADDRESS), check if port 80 shows esphome web UI - it should look something like below image

    esphome device ui

    check if device name Status shows ON (if yes then device is connected to MQTT broker)

  • go to esp32 address in your browser (ESP32_CAMERA_ADDRESS), check if web address returns screenshot on port 8081

  • (after node-red flow deployment) check if pressing physical button triggers MQTT message and Node-RED flow, as a result green led should light up for a moment.