Please tell me (if it possible) how to use rs 485 port with tasmota firmware?
I've got some rs 485 devices (such as C02 sensors, wind speed and so on) and want them to receive data from. Like i receive data from tasmota sensors to my mqtt server by json strings.

I have connected to rs 485 port some of them (powered on of cource) but no data came. like nothing happens.

Is it really possible with KC868-A16 or I must search some other device?

Thank you.

if you are using CM4 8G eMMC version, installed home assistant and add-on. when you have not enough space of eMMC, you can use "movedata disk" function, that can move your data to USB disk, save your eMMC space. it's easy.

actually esp32 will convert current signal to voltage from sensor. we have tested KC868-A4 board with current source, here are some photos from board and esphome log output:
   
   
   
   


here is ESPHome config file for KC868-A4 analog input:

esphome:
  name: a4

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
  password: "cde668a4953338ac5140f1585c9d5150"

wifi:
  ssid: "KinCony"
  password: "123456"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "A4 Fallback Hotspot"
    password: "ZvKhDPUYilHj"

captive_portal:

sensor:
  - platform: adc
    pin: 34
    name: "ADC-IN"
    update_interval: 5s

Can you give me some code to measure water with dc current analog 4-20mA using ESPHOME?

I want to know the filter value representing the water level measurement as a percentage.

I am new to esphome.

new pcb v1.2 of KC868-A8S, added 4G SIM7600 module socket on the pcb.

Attached Files

Thumbnail(s)
                   

Goodnight,

I have a led driver that uses the tuya/smart home platform, it is connected to alexa and works only by voice command, I wanted to use a digital input to change the state of the led driver from on to off, could anyone help me?


Thanks in Advance

Attached Files

  Casa_A4_Digital_Wifi_IR_LED_BOTAO.zip (Size: 1.64 KB / Downloads: 240)

this is a simple demo source code for KC868-A4 remote control relay by ESP RainMaker.


  ESP-RAINMARKER-A4-4DO.zip (Size: 1.96 KB / Downloads: 1182)
1. install arduino IDE with "Additional Boards Manager URLs": https://raw.githubusercontent.com/espres...index.json
2. Arduino IDE "Board" chose: ESP32 DEV Module
3. Arduino IDE "Tools" -- "Partition Scheme" -- chose: "RainMaker"
4. Download code
5. Scan QRcode to add device.

because product can't send by battery by air plane. so if you need to buy the battery in your local city, here is model "23A 12V"  and the photo.
   

esphome:
  name: kc868-a4
  platform: ESP32
  board: esp32dev

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
  password: "4d5a388de4f759bf88e71cde7a31af6f"

wifi:
  ssid: "KinCony"
  password: "a12345678"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Kc868-A4 Fallback Hotspot"
    password: "QOU4hbAjJ5Wb"

captive_portal:

switch:
  - platform: gpio
    name: "light1"
    pin: 2
    inverted: false

  - platform: gpio
    name: "light2"
    pin: 15
    inverted: false
   
  - platform: gpio
    name: "light3"
    pin: 5
    inverted: false
   
  - platform: gpio
    name: "light4"
    pin: 4
    inverted: false
   
binary_sensor:
  - platform: gpio
    name: "input1"
    pin:
      number: 36
      inverted: true

  - platform: gpio
    name: "input2"
    pin:
      number: 39
      inverted: true
   
  - platform: gpio
    name: "input3"
    pin:
      number: 27
      inverted: true
     
  - platform: gpio
    name: "input4"
    pin:
      number: 14
      inverted: true



   

  Made_for_ESPHome_KC868-A4.txt (Size: 1.1 KB / Downloads: 607)

Estou usando KC868-col com Node-red. Quando a internet cai, eu tenho que me reconectar manualmente clicando no botão de conexão no software de configuração Kincony. Como fazer com que o KC868-col se conecte automaticamente quando a internet ou a energia se apagam?