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KC868-A16v3 more 1Wire Temp-Sensor per Pin - Printable Version

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KC868-A16v3 more 1Wire Temp-Sensor per Pin - CarMagician - 07-07-2025

Hello, 
I got the KC868-A16v3 Board today.

There are three dedicated pins for 1Wire Sensors: 
1-wire (pull-up resistance on PCB):
1-wire1:GPIO47
1-wire2:GPIO48
1-wire3:GPIO38

Is there a way to connect more than one sensor per pin?
I combined two sensors and hooked them up to HT1, there is no communication with the sensors. 
If I only connect one sensor I can read temperature. 

I need more than 3 temperature sensors so I thought about connecting all of them together. 
Had an other project with a normal ESP and there it was possible with 6 sensors on one pin. 
I would group them together in pairs of 5 for my project.  

Any hints?

Regard
CarMagician


RE: KC868-A16v3 more 1Wire Temp-Sensor per Pin - admin - 07-07-2025

if you use ESPHome , it support one gpio with multi sensors. But KCS v3 not spoort that, maybe in future we will update firmware for that.


RE: KC868-A16v3 more 1Wire Temp-Sensor per Pin - CarMagician - 07-08-2025

(07-07-2025, 10:48 PM)admin Wrote: if you use ESPHome , it support one gpio with multi sensors. But KCS v3 not spoort that, maybe in future we will update firmware for that.

I use ESPHome. 

I took the YAML from here and commented the GPIOs out.
  #- platform: gpio
  #  name: "A16v3 IO47"
  #  pin:
  #    number: 47
  #    inverted: true
  #- platform: gpio
  #  name: "A16v3 IO48"
  #  pin:
  #    number: 48
  #    inverted: true
  #- platform: gpio
  #  name: "A16v3 IO38"
  #  pin:
  #    number: 38
  #    inverted: true

And I updated the YAML

one_wire:
  - platform: gpio
    pin: 47


sensor:
  - platform: dallas_temp
    name: "1-Wire1 Sensor"
    update_interval: 10s


But it does not work. Any idea?

Regards
CarMagician


RE: KC868-A16v3 more 1Wire Temp-Sensor per Pin - admin - 07-08-2025

you need check the address scaned in esphome LOG, then fill the address. such as :
sensor:
- platform: dallas_temp
address: 0x1234567812345628
name: temperature
update_interval: 120s


RE: KC868-A16v3 more 1Wire Temp-Sensor per Pin - CarMagician - 07-08-2025

(07-08-2025, 05:58 AM)admin Wrote: you need check the address scaned in esphome LOG, then fill the address. such as :
sensor:
  - platform: dallas_temp
    address: 0x1234567812345628
    name: temperature
    update_interval: 120s

Will test! Thank you very much!

And the board can really handle 24V DC right? 
I want to control 24V Fans for cooling. 
(2000 Rpm / 24V / 2,4W)

Regards
CarMagician


RE: KC868-A16v3 more 1Wire Temp-Sensor per Pin - admin - 07-08-2025

sure, dc24v is ok for KC868-A16v3