Engelseruiter

h1. Esphome

{{>toc}}

h2. TTGO T-Journal

The T-journal is able to communicate the battery state over i2c. After bridging the pads as shown in the picter the IP5306 that is used is connected to pins 13 (scl) and 14 (sda). 

!clipboard-202303271732-dyvee.png!

working configuration:

<pre>

substitutions:

  device_name: "cam01"

esphome:

  name: '${device_name}'

esp32:

 board: esp32dev

 framework:

   type: arduino

# Enable Home Assistant API

api:

  encryption:

    key: "xxxxxxxxxxxx"

ota:

  password: "xxxxxxxxxxxxx"

wifi:

  ssid: !secret wifi_ssid

  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails

  ap:

    ssid: "cam01 Fallback Hotspot"

    password: "xxxxxxx"

captive_portal:

external_components:

  - source:

      type: git

      url: https://github.com/MichaKersloot/esphome_custom_components

    components: [ ip5306, esp32_camera ]

i2c:

  - id: bus_a

    sda: 14

    scl: 13

    frequency: 400kHz

    scan: true    

ip5306:

  battery_level:   # sensor

    name: '${device_name} - Battery Level'

  charger_connected:  # binary_sensor

    id: connected

    on_press:

      then:

        - lambda: ESP_LOGD("TEST", "charging");

    on_release:

      then:

        - lambda: ESP_LOGD("TEST", "not charging");

  charge_full:  # binary_sensor

    id: full

    on_press:

      then:

        - lambda: ESP_LOGD("TEST", "fully charged");

    on_release:

      then:

        - lambda: ESP_LOGD("TEST", "still charging");

esp32_camera:

  name: '${device_name} - camera'

  external_clock:

    pin: GPIO27

    frequency: 20MHz

  i2c_pins:

    sda: GPIO25

    scl: GPIO23

  data_pins: [GPIO17, GPIO35, GPIO34, GPIO5, GPIO39, GPIO18, GPIO36, GPIO19]

  vsync_pin: GPIO22

  href_pin: GPIO26

  pixel_clock_pin: GPIO21

  agc_gain_ceiling: 8x

  # jpeg_quality: 16

  # max_framerate: 25Hz

  contrast: 0

  brightness: 1

  saturation: 0

  ae_level: 2

  # aec2: True

  horizontal_mirror: false

  vertical_flip: false

  resolution: 800x600

esp32_camera_web_server:

  - port: 8080

    mode: stream

  - port: 8081

    mode: snapshot

</pre>

If you are unable to program:

  python -m esptool --chip esp32 --port COM5 --baud 115200 --after hard_reset erase_flash

and if even that doesn't solve it:

  python -m esptool --port COM5 write_flash_status --non-volatile 0

h2. p1 dsmr power meter with TTGO T7 v1.3 mini

I'm using a TTGO T7 v1.3 mini with and end of a phone cable with an RJ11 connector. I soldered the connections direct to the board.

!clipboard-202304142146-wfydy.png!

On RJ11, pin 1 and pin 6 are not connected / available

|_.RJ11 P1|_.ESP32 Pin|_.4w cable|_.comments|

|2 - CTS|GPIO19|black|Clear to Send, High = allow P1 Meter to send data|

|3 - Data GND|GND|red||

|4 - nc|-|green||

|5 - RXD (data)|GPIO16|yellow|1K external pull-up resistor needed|

!clipboard-202304142159-fj2tf.png!