Waiting for ACK timed out!

[gijsje]

Thank you for the creating this. I have been playing with my nextion for a long time but am not able to get it to work with any programming. The only thing i do get is:

[14:26:02][W][nextion:036]: Waiting for ACK timed out!
[14:26:02][W][nextion:083]: Sending command 'outside.txt="21.6"' failed because no ACK was received

I did change the pins around in the software and physical but nothing works

I am using a 5" display but that should not really care i guess I also did try with another 2.4 display with the same thing

`# This is ESPHome configuration file. This goes to the esphome folder

You need to provide your WiFi ssis/password and passwords for API and OTA (or put them in your esphome/secrets.yaml)

esphome: name: display_weather platform: ESP8266 board: d1_mini_pro

wifi: ssid: SSID password: PASS fast_connect: true

api: password: PASS

ota: password: PASS

logger: baud_rate: 0 # Disable UART logging (pins GPIO1/3 are used for Nextion communication)

uart: rx_pin: D1 tx_pin: D6 baud_rate: 9600

time:

• platform: sntp id: sntp_time

sensor:

• platform: homeassistant # Inside temperature id: temperature_inside entity_id: sensor.kantoor_temperatuur

• platform: homeassistant # Outside temperature id: temperature_outside
  entity_id: sensor.tuin_temperatuur

• platform: homeassistant # Swimming pool id: temperature_pool entity_id: sensor.keuken_koelkast_temperatuur

• platform: homeassistant # Forecast minimal temperature id: today_min entity_id: sensor.today_min

• platform: homeassistant # Forecast maximal temperature id: today_max entity_id: sensor.today_max

• platform: homeassistant # Forecast precipitation id: today_rain entity_id: sensor.today_rain

• platform: homeassistant # Forecast icon id: today_icon entity_id: sensor.today_icon

binary_sensor:

• platform: homeassistant id: somebody_home entity_id: binary_sensor.kantoor_beweging

globals:

• id: first_page # First page of the display? type: bool restore_value: no
• id: display_on # Is display on? type: bool restore_value: no

display:

• platform: nextion id: teplomer update_interval: 5s lambda: |- // Turn display on when somebody is home. Only update when display on. if (id(somebody_home).state) { if (!id(display_on)) { it.set_backlight_brightness(50); id(display_on)=true; } // Swich first/second page on each update (every 5 seconds) if (id(first_page)) { it.goto_page("forecast"); it.send_command_printf("%s.pic=%.0f", "weather",id(today_icon).state); it.set_component_text_printf("minmax","%.0f/%.0f",id(today_min).state,id(today_max).state); if (isnan(id(today_rain).state)) { it.set_component_text("rain","-"); } else { it.set_component_text_printf("rain","%.0f",id(today_rain).state); } auto time = id(sntp_time).now(); it.set_component_text_printf("hour","%02d",time.hour); it.set_component_text_printf("minute","%02d",time.minute); } else { it.goto_page("temperature"); it.set_component_text_printf("inside","%2.1f",id(temperature_inside).state); it.set_component_text_printf("outside","%2.1f",id(temperature_outside).state); it.set_component_text_printf("pool","%2.1f",id(temperature_pool).state); } id(first_page) = !id(first_page); // Switch page } else { // Turn off the display if nobody is home. if (id(display_on)) { it.set_backlight_brightness(0); id(display_on)=false; } }`

[bruxy70]

Sorry, I missed your message.

I was getting the error as well, but the display worked. I made a change to the code not to wait for the ack.

it.set_wait_for_ack(false);

But that won't fix your issue I think. What do you mean by "nothing works". Is the display on? Try replacing the lambda by something simple first, such as:

lambda: |- it.set_wait_for_ack(false); it.set_component_text("inside","test")

What does the display show?

[bruxy70]

@gijsje , BTW, you are saying that you tried with 5" display - did the Nextion Editor allow you to upload the screen I designed for 2.4" to the 5" screen?