Config for showing pages on multiple displays connected to same nodemcu

Hardware Home Automation
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1

Hi.

i’ve got multiple oled1306 i2c displays. if connected to same i2c pins on the same nodemcu, they all work fine and display the same text (which is expected because they have the same i2c address).

I cannot change the displays i2c addresses so need to put them on seperate i2c buses. The nodemcu esp8266 uses software defined i2c, i should be able to use a maximum of ten buses.

trying to work through this i found that each time i try to compile, i get the error, ID page(no) redefined! Check display->0->pages->0->id.

so for example

pages:
-
ID page1 redefined! Check display->0->pages->0->id.
id: page1
lambda: !lambda |-
it.printf(10, 9, id(my_font_14), “Pump1 Low: %s A”, id(Tas_sensor2_thing_Pump1_low_current).state.c_str());
-
ID page2 redefined! Check display->0->pages->1->id.
id: page2
lambda: !lambda |-
it.printf(10, 9, id(my_font_14), “Pump1 High: %s A”, id(Tas_sensor2_thing_Pump1_high_current).state.c_str());
-
ID page3 redefined! Check display->0->pages->2->id.
id: page3
lambda: !lambda |-
it.printf(10, 9, id(my_font_14), “Pump2: %s A”, id(Tas_sensor2_thing_Pump2_current).state.c_str());
- id: page4
lambda: !lambda |-
it.printf(10, 9, id(my_font_14), “Solar Pump: %s A”, id(Tas_sensor2_thing_Solar_Pump_current).state.c_str());
brightness: 1.

so it looks like i need to change the way i write the page id’s. does anyone know how to assign pages to specific displays?

Current config using the latest ESPHOME firmware below. thanks

esphome:
name: tas_sensor3
platform: ESP8266
board: nodemcuv2

wifi:
ssid: “blah blah blah”
password: “blah blah blah”
fast_connect: false
reboot_timeout: 0s
domain: .home.local
power_save_mode: none

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

ap:
ssid: “Tas Sensor3 Fallback Hotspot”
password: “blah blah blah”

web_server:
port: 80

Enable logging

logger:
level: VERBOSE

i2c:

  • id: bus1
    sda: D2
    scl: D1
    scan: false
  • id: bus2
    sda: D4
    scl: D3
    scan: false

font:

  • file: “arial.ttf”
    id: my_font_16
    size: 16
  • file: “arial.ttf”
    id: my_font_14
    size: 14

image:

  • file: “coolant-temperature.png”
    id: water_temp
    resize: 16x16

display:

  • platform: ssd1306_i2c
    i2c_id: bus1
    address: 0x3C
    model: “SSD1306 128x32”
    id: oled1
    reset_pin: D0
    update_interval: 30s
    pages:
    • id: page1
      lambda: |-
      it.printf(10, 9, id(my_font_16), “Hot Tub : %s °C”, id(Tas_Sensor1_Hot_Tub).state.c_str());
    • id: page2
      lambda: |-
      it.printf(10, 9, id(my_font_14), “Solar Out : %s °C”, id(Tas_Sensor1_Solar_In).state.c_str());
    • id: page3
      lambda: |-
      it.printf(10, 9, id(my_font_14), “Solar In : %s °C”, id(Tas_Sensor1_Solar_Out).state.c_str());
  • platform: ssd1306_i2c
    i2c_id: bus2
    address: 0x3C
    model: “SSD1306 128x32”
    id: oled2
    reset_pin: D0
    update_interval: 30s
    pages:
    • id: page1
      lambda: |-
      it.printf(10, 9, id(my_font_14), “Pump1 Low: %s A”, id(Tas_sensor2_thing_Pump1_low_current).state.c_str());
    • id: page2
      lambda: |-
      it.printf(10, 9, id(my_font_14), “Pump1 High: %s A”, id(Tas_sensor2_thing_Pump1_high_current).state.c_str());
    • id: page3
      lambda: |-
      it.printf(10, 9, id(my_font_14), “Pump2: %s A”, id(Tas_sensor2_thing_Pump2_current).state.c_str());
    • id: page4
      lambda: |-
      it.printf(10, 9, id(my_font_14), “Solar Pump: %s A”, id(Tas_sensor2_thing_Solar_Pump_current).state.c_str());

interval:

  • interval: 5s
    then:
    • display.page.show_next: oled1
    • component.update: oled1
    • display.page.show_next: oled2
    • component.update: oled2

mqtt:
broker: openhab
discovery: true
username: blah blah blah
password: blah blah blah
reboot_timeout: 0s
keepalive: 15s
client_id: tas_sensor3
topic_prefix: tas_sensor3
birth_message:
topic: myavailability/topic
payload: online
will_message:
topic: myavailability/topic
payload: offline

text_sensor:

  • platform: mqtt_subscribe
    name: “Tas_Sensor1_Hot_Tub”
    id: Tas_Sensor1_Hot_Tub
    topic: tas_sensor1/sensor/hot_tub/state
  • platform: mqtt_subscribe
    name: “Tas_Sensor1_Solar_In”
    id: Tas_Sensor1_Solar_In
    topic: tas_sensor1/sensor/solar_heater_in/state
  • platform: mqtt_subscribe
    name: “Tas_Sensor1_Solar_Out”
    id: Tas_Sensor1_Solar_Out
    topic: tas_sensor1/sensor/solar_heater_out/state
  • platform: mqtt_subscribe
    name: “Tas_sensor2_thing_Pump1_low_current”
    id: Tas_sensor2_thing_Pump1_low_current
    topic: tas_sensor2/sensor/pump1_low_current/state
  • platform: mqtt_subscribe
    name: “Tas_sensor2_thing_Pump1_high_current”
    id: Tas_sensor2_thing_Pump1_high_current
    topic: tas_sensor2/sensor/pump1_high_current/state
  • platform: mqtt_subscribe
    name: “Tas_sensor2_thing_Pump2_current”
    id: Tas_sensor2_thing_Pump2_current
    topic: tas_sensor2/sensor/pump2_current/state
  • platform: mqtt_subscribe
    name: “Tas_sensor2_thing_Solar_Pump_current”
    id: Tas_sensor2_thing_Solar_Pump_current
    topic: tas_sensor2/sensor/solar_pump_current/state

api:
password: “blah blah blah”
reboot_timeout: 0s

ota:
password: “blah blah blah”

time:

  • platform: sntp
    id: sntp_time
2

bump… anyone?