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Hello DS18B20 temperature sensor works with ESP 32 card But sometimes there is an unknown problem. Is the problem in the code or is it a hardware error? Since the cable connected to the 4.7k resistor is long, I tried different resistances. I read the value but every 10 minutes, about 300 ml seconds, it becomes an unknown, that is, a ghost. Can you share any advice or a solution plan regarding this? Thank you very much in advance.
sensor:
- platform: dallas_temp
address: 0xc73de10457c66928
name: “Water Temp”
id: probe01
update_interval: 6s
Raw TDS Reading
- platform: adc
pin: GPIO34
name: “TDS 01 Raw”
attenuation: 6db # only for ESP32
id: tds01_raw
update_interval: 2s
unit_of_measurement: “v”
accuracy_decimals: 3
internal: true
Temperature Compensated Voltage
- platform: template
name: “TDS 01 TCV”
id: temp01_comp_v
unit_of_measurement: ‘v’
accuracy_decimals: 3
lambda: ‘return ((id(tds01_raw).state) / (1 + (0.02 * ((id(probe01).state) - 25.0))));’
update_interval: 2s
internal: true
Temperature Compensated TDS
- platform: template
name: “TDS”
id: hydro_tds
unit_of_measurement: “PPM”
state_class: “measurement”
accuracy_decimals: 0
update_interval: 2s
lambda: return (133.42*(id(temp01_comp_v).state)(id(temp01_comp_v).state)(id(temp01_comp_v).state) - 255.86*(id(temp01_comp_v).state)(id(temp01_comp_v).state) + 857.39(id(temp01_comp_v).state))*0.5;
