Differences

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--- rpi [2025/07/07 09:56] – created karcio
+++ rpi [2025/07/07 11:31] (current) – karcio
@@ Line 1: / Line 1: @@
-== Home Assistant, ESPHome, BMP280 - temperature and pressure monitoring. ==
+== Home Assistant, ESPHome, BMP285 - temperature and pressure monitoring. ==
@@ Line 14: / Line 14: @@
 Raspberry Pi 3
-{{ :img_3050.jpg?direct&600 |}}
+{{ :0:img_3050.jpg?direct&600 |}}
 ESP32 controller
-{{ :image0.jpeg?direct&600 |}}
+{{ :0:image0.jpeg?direct&600 |}}
 BMP280 sensor
-{{ :image1.j
+{{ :0:image1.jpeg?direct&600 |}}
+ESP32 custom case
+{{ :0:image_ob2.jpeg?direct&600 |}}
+== Prepare image HAOS: ==
+  * download HAOS for your rpi from https://github.com/home-assistant/operating-system/releases/tag/13.0
+<code>
+https://github.com/home-assistant/operating-system/releases/download/13.0/haos_rpi2-13.0.img.xz
+</code>
+  * unpack image
+<code>
+unxz haos_rpi2-13.0.img.xz
+</code>
+  * insert sd card to your device and check how your machine recognize it - in mine case it is /dev/mmcbkl0
+<code>
+sudo fdisk -l
+</code>
+  * flash your sdcard
+<code>
+sudo dd if=Downloads/haos_rpi2-13.0.img  of=/dev/mmcblk0 status=progress bs=1M
+</code>
+== First run HA ==
+  * insert sd card to RPI
+  * connect Ethernet cable
+  * insert WIFI dongle to usb port
+  * connect power to RPI and wait while for HA to run
+  * on your router check your rpi Ip address
+  * in web browser insert rpi Ip address with port 8123,  http://your_rpi_ip:8123
+  * first create account
+== Setup wifi connection on first run:==
+  * go to Settings > System > select Network and then wifi tab
+  * in ip4 select automatic
+  * in WI-FI scan network to find your network and insert SSID and password. Save after that
+  * reboot rpi to set up wifi
+== Install Add-ons:==
+  * go to : Settings > Add-ons
+  * click in add and install esphome and File editor
+  * esphome allows you to use esp32
+  * file editor allows you to edit config files and check syntax
+== HA config structure ==
+  * configuration.yml
+  * automation.yml
+  * secrets.yml
+== Connect BMP280 to ESP32 ==
+  * BMP280 sensor has 6 pins but we use just 4: VCC, GRN, SCL, SDA
+  * connet  pins as following:
+    * BMP280 VCC -> ESP32 3V
+    * BMP280 GRN -> ESP32 GRN
+    * BMP280 SCL -> ESP32 D22
+    * BMP280 SDA -> ESP32 D21
+ESP32 and BMP280 final photos.
+{{ :0:image_ob1.jpeg?direct&600 |}}
+{{ :0:image_ob0.jpeg?direct&600 |}}
+{{ :0:image_ob3.jpeg?direct&600 |}}
+== Connect esp32 to rpi for first initial flash ==
+  * connect esp32 using usb cable to rpi do RPI
+  * open ESPHome tab
+  * click on add new device
+this is sample of config file:
+<code>
+esphome:
+  name: esp32-01
+  friendly_name: esp32-01
+esp32:
+  board: esp32dev
+  framework:
+    type: arduino
+# Enable logging
+logger:
+# Enable Home Assistant API
+api:
+  encryption:
+    key: "xxx"
+ota:
+  - platform: esphome
+    password: "xxx"
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+  # Enable fallback hotspot (captive portal) in case wifi connection fails
+  ap:
+    ssid: "Esp32-01 Fallback Hotspot"
+    password: "xxx"
+captive_portal:
+i2c:
+  sda: 21
+  scl: 22
+  scan: True
+sensor:
+  - platform: bmp280_i2c
+    temperature:
+      name: "bedroom temperature"
+      oversampling: 16x
+    pressure:
+      name: "bedroom pressure"
+    address: 0x76
+    update_interval: 60s
+</code>
+This is how looks sample of automation config
+<code>
+alias: "Temperature"
+description: low temperature level
+trigger:
+  - platform: state
+    entity_id:
+      - sensor.temperature
+    to: null
+    for:
+      hours: 0
+      minutes: 30
+      seconds: 0
+condition:
+  - condition: or
+    conditions:
+      - condition: numeric_state
+        entity_id: sensor.temperature
+        above: 25
+      - condition: numeric_state
+        entity_id: sensor.temperature
+        below: 5
+      - condition: numeric_state
+        entity_id: sensor.temperature
+        below: 0
+action:
+  - data:
+      message: "Temperature is: {{ states('sensor.temperature')}} C"
+      title: "Warning: temperature is {{ states('sensor.temperature')}} C"
+    action: notify.email_notification
+mode: single
+</code>
+Whole documentation is here: https://www.home-assistant.io/installation/raspberrypi