New CS-Z25ZKEW, no reaction on RX/TX (*solved* by changing GPIOs)

[wunderbaum]

Hello,
since a few days, I have a new CS-Z25ZKEW. This is a model with an empty plug and the wlan somewhere inside.
So, I thought, I can connect like this: [(https://github.com//issues/111)]
I have an ESP32-C3-Super-Mini in use. At the 12V I have measured 14V. But this I do not need.
Type I choosed is cnt, when I choose wlan, I get timeouts in the console.
In my model, I cannot even see the included wlan-module.

Colors of the aliexpress-plug are strange:
5V - black
GND - orange
TX - white
RX - red

I switched RX/TX, no success.
What can I do to dive deeper into a possible solution?

This is my config:

substitutions:
  name: esphome-web-cb0e7c
  friendly_name: Klima Schlafzimmer

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  name_add_mac_suffix: false
  project:
    name: esphome.web
    version: '1.0'

esp32:
  board: esp32-c3-devkitm-1
  framework:
    type: arduino

# Enable logging
logger:
  level: DEBUG

# Enable Home Assistant API
api:

# Allow Over-The-Air updates
ota:
- platform: esphome

# Allow provisioning Wi-Fi via serial
improv_serial:

wifi:
  # Set up a wifi access point
  ap: {}

# In combination with the `ap` this allows the user
# to provision wifi credentials to the device via WiFi AP.
captive_portal:

dashboard_import:
  package_import_url: github://esphome/firmware/esphome-web/esp32c3.yaml@v2
  import_full_config: true

# Sets up Bluetooth LE (Only on ESP32) to allow the user
# to provision wifi credentials to the device.
esp32_improv:
  authorizer: none

# To have a "next url" for improv serial
web_server:

uart:
  tx_pin: 20
  rx_pin: 21
  baud_rate: 9600
  parity: EVEN

external_components:
  source: github://DomiStyle/esphome-panasonic-ac
  components: [panasonic_ac]


climate:
  - platform: panasonic_ac
    # For CZ-TACG1
    type: cnt

    # For DNSK-P11
    # type: wlan

    name: Panasonic AC
    horizontal_swing_select:
      name: AC Horizontal Swing Mode
    vertical_swing_select:
      name: AC Vertical Swing Mode
    outside_temperature:
      name: AC Outside Temperature
    nanoex_switch:
      name: Panasonic AC NanoeX Switch

[profigriller]

This is my wiring and my yaml. Please ignore the relay and correspondig wires at the bottom. I had issues with the uart and tried different ports. Maybe this helps. (the code look ugly and I tried to include it in a code section which does not seem to work)

`substitutions:
devicename: "fgfgfgf"
long_devicename: "ESPthings Panasonic Climate Interface"
pcb_version: "ESP32SAZDelivery"

esphome:
name: "${devicename}"
name_add_mac_suffix: false ## if 'false' use different names/hostnames for each device!
comment: "${long_devicename} ${pcb_version}"
platform: ESP32
board: nodemcu-32s
project:
name: "esphome.pana-climate"
version: "${pcb_version}"

external_components:

• source: github://DomiStyle/esphome-panasonic-ac
  components: [panasonic_ac]

wifi:
ssid: YYYYY
password: XXXXXX
ap:
ssid: "${devicename} Hotspot"
password: ZZZZZZ

captive_portal:

web_server:
port: 80

logger:
level: INFO

ota:

uncomment the line below if you wish to use an ota-password

password: !secret esphome_ota_password

uart:
tx_pin: GPIO17
rx_pin: GPIO16
id: ac_uart
baud_rate: 9600
parity: EVEN

revisions below 220722-01 use GPIO12

status_led:
pin: GPIO13

climate:

• platform: panasonic_ac
  id: redBox
  type: cnt # For CZ-TACG1 use type: cnt / For DNSK-P11 use type: wlan
  name: "${long_devicename}"
  vertical_swing_select:
  name: "${long_devicename} Vertical Swing Mode"
  horizontal_swing_select:
  name: "${long_devicename} Horizontal Swing Mode"
  outside_temperature:
  name: "${long_devicename} Outside Temperature"
  nanoex_switch:
  name: Panasonic AC NanoeX Switch
  current_power_consumption:
  name: Panasonic AC Power Consumption

`

[wunderbaum]

had issues with the uart and tried different ports.

Many thanks!
That was the easy solution! I changed the UART-GPIOs and now it works.

uart: tx_pin: GPIO8 rx_pin: GPIO9 id: ac_uart baud_rate: 9600 parity: EVEN

[tomba0815]

@wunderbaum
Can you tell me the exact name of the connector for the cnt socket on the Pana, or can you send me a link to the Aliexpress article?
I bought "JST PH 2.0 5PIN" plugs, but they don't fit into the socket.
Could you also post your working config?
Have you deactivated the built-in WLAN module or is it running in parallel without any problems?

At the moment I can't get a connection to my CS-Z25ZKEW, I think it's the plug that doesn't have the right contact.

Many thanks

[wunderbaum]

Hello @tomba0815
I have ordered these:
https://a.aliexpress.com/_Eui8PR5

Take care to choose 5P version.
It works in parallel to the internal module.

Sorry, forgot to paste my config (its an ESP32-C3 Super Mini).

`
substitutions:
  name: esphome-web-f8452c
  friendly_name: Klima Wohnzimmer
  long_devicename: "WZ ESP32 Panasonic Climate Interface"

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  name_add_mac_suffix: false
  project:
    name: esphome.web
    version: '1.0'

esp32:
  board: esp32-c3-devkitm-1
  framework:
    type: arduino

# Enable logging
logger:
  level: INFO

# Enable Home Assistant API
api:

# Allow Over-The-Air updates
ota:
- platform: esphome

# Allow provisioning Wi-Fi via serial
improv_serial:

wifi:
  # Set up a wifi access point
  ap: {}

# In combination with the `ap` this allows the user
# to provision wifi credentials to the device via WiFi AP.
captive_portal:

dashboard_import:
  package_import_url: github://esphome/firmware/esphome-web/esp32c3.yaml@v2
  import_full_config: true

# Sets up Bluetooth LE (Only on ESP32) to allow the user
# to provision wifi credentials to the device.
esp32_improv:
  authorizer: none

# To have a "next url" for improv serial
web_server:

#uart:
#  tx_pin: 20
#  rx_pin: 21
#  baud_rate: 9600
#  parity: EVEN

uart:
   tx_pin: GPIO8
   rx_pin: GPIO9
   id: ac_uart
   baud_rate: 9600
   parity: EVEN

external_components:
  source: github://DomiStyle/esphome-panasonic-ac
  components: [panasonic_ac]


climate:
  - platform: panasonic_ac
    id: wzac
    # For CZ-TACG1
    type: cnt

    # For DNSK-P11
    # type: wlan

    name: Panasonic AC
    horizontal_swing_select:
      name: AC Horizontal Swing Mode
    vertical_swing_select:
      name: AC Vertical Swing Mode
    outside_temperature:
      name: AC Outside Temperature
    nanoex_switch:
      name: Panasonic AC NanoeX Switch
    current_power_consumption:
      name: AC Power Consumption`

[tomba0815]

Hello @wunderbaum ,
thank you very much for your support :)
I have now ordered the plug and also tested the connection with a DIY solution. It also works so far.

Thomas