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+--- Thread: RS485 Temperature and Humidity Sensor Modbus RTU (/showthread.php?tid=6598)
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RE: RS485 Temperature and Humidity Sensor Modbus RTU - xarouli5 - 12-09-2024
(12-05-2024, 11:30 PM)admin Wrote: sure , it's OK, but this is RS485 sensor, you should config in yaml by esphome modbus_controller, NOT by SHT30 component in ESPHome.
Ok, do you have the yaml code for SHT30? Alsoo, does it matter in which place of yaml you write it?
RE: RS485 Temperature and Humidity Sensor Modbus RTU - admin - 12-09-2024
check at here: https://www.kincony.com/forum/showthread.php?tid=6849
RE: RS485 Temperature and Humidity Sensor Modbus RTU - xarouli5 - 02-08-2025
(12-09-2024, 10:58 PM)admin Wrote: check at here: https://www.kincony.com/forum/showthread.php?tid=6849
How many of these sensors you can connect in same RS485 (in AIO)?
Can you connect different type sensors at the same time?
What is the maximum cable length for each sensor?
Is shielded cable better after specific length?
RE: RS485 Temperature and Humidity Sensor Modbus RTU - admin - 02-08-2025
it according to your firmware. are you using kincony KCS firmware or config by ESPHome?
RE: RS485 Temperature and Humidity Sensor Modbus RTU - xarouli5 - 02-08-2025
I am using home assistant
RE: RS485 Temperature and Humidity Sensor Modbus RTU - admin - 02-09-2025
if you config by ESPHome yaml, one GPIO support multi sensors ,such as DS18B20. But one GPIO only connect with same type of sensor, can't connect with different sensor model.
it's not easy to say MAX cable , maybe 1 meter , maybe 5 meter, it according to your wire quality.
shielded cable is better for long distance.
RE: RS485 Temperature and Humidity Sensor Modbus RTU - xarouli5 - 02-09-2025
So we can connect many SHT30 sensors on RS485 using ESPhome. I thought RS485 supports long cable (like 100 or 300m cable)
RE: RS485 Temperature and Humidity Sensor Modbus RTU - admin - 02-09-2025
yes, use RS485 sensor is better for long distance.