ESPhome + ESP8266 + DS18B20 sensor problem

Third party integrations
1

Hello all,

this is my second topic, so please, just let me know if am doing something wrong in this post.

I would like connect my Wemos EP8266 board with Hassio and ESPhome, to measure temperature, but I have small problems with it.

Like it is written, am using Wemos ESP8266 Wroom-02 board wired with Dallas DS18B20 temperature sensor. I will try to give all informations, that you can check and help me to see, where am doing it wrong.

In ESPhome am using this code:

esphome:
  name: temperatura
  platform: ESP8266
  board: esp01_1m

wifi:
  ssid: "ludvik2"
  password: "metod1234"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Temperatura Fallback Hotspot"
    password: "q7vN22bPvGD4"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

# Example configuration entry
dallas:
  - pin: GPIO4

# Individual sensors
sensor:
  - platform: dallas
    address: 0x1C0000031EDD2A28
    name: "temperatura"

The code is taken from ESPhome page for Dallas sensors.

Am using this type of wiring:

wire
wire557Ă—598 48.9 KB

Code is flashed on ESP8266 board with esphome-flasher, and seems, that code is sucessfully uploaded to ESP8266 board, but I dont get any readings of temperature, this is a log from flasher:

flash
flash1161Ă—807 207 KB

And in this point, I dont know, what the next step is, so if anyone knows anything and helps me solve the problem, I would bi very happy.

Regards.

3

You’re using the sensor address from the esphome example. Look again at how to find the address for your device on esphome page Getting Sensor IDs .
Replace the address with the addrrss in your logs - “found sensor”

5 Likes
4 
  name: temperatura
  platform: ESP8266 <---Try "ESP32"
  board: esp01_1m  <---- Try "lolin32"

or

  name: temperatura
  platform: ESP8266 
  board: esp01_1m <---- Try "esp_wroom_02"

Reference: https://github.com/esphome/esphome-core/issues/121

5

Solution from Holdestmate was correct!

I used sensor address from example, after changing address with correct sensor address, now
I get temperature datas.

Thanks.