Analog temperature in NSPanel

[gonzzzales]

Hi all!
I bought two devices NSPanel by Sonoff and flashed to Tasmota. Unfortunately both devices show the wrong analog temperature
The DSB20 sensor shows temperature correctly
12:37:51.894 RSL: SENSOR = {"Time":"2022-06-03T12:37:51","ANALOG":{"Temperature1":5.2},"DS18B20":{"Id":"C8E0AABDCCFF","Temperature":25.0},"ESP32":{"Temperature":53.9},"TempUnit":"C"}

12:43:53.020 RSL: SENSOR = {"Time":"2022-06-03T12:43:52","ANALOG":{"Temperature1":5.4},"DS18B20":{"Id":"FAE0AB6D6DFF","Temperature":28.0},"ESP32":{"Temperature":37.8},"TempUnit":"C"}

Is it a malfunction of the devices or did I set them up incorrectly? resistance of the NTC sensor is 8.8kOm.

i use this template {"NAME":"NSPanel","GPIO":[0,0,0,0,3872,0,0,0,0,0,32,0,0,0,0,225,0,480,224,1,0,0,0,33,0,0,0,0,0,0,0,0,0,0,4736,0],"FLAG":0,"BASE":1,"CMND":"ADCParam 2,11200,10000,3950 | Sleep 0 | BuzzerPWM 1"}

[atirage]

Hi,

I've noticed the same issue with my panel. It seems to me that the template ADC parameters are not quite correct for this particular sensor.
This is what the Tasmota wiki says about it (https://tasmota.github.io/docs/ADC/):

[ADC] analog input tuning parameters.
On ESP32 x is channel 1..8

sensor, param1, param2, param3, param4

sensor values:

2 = Temperature Steinhart-Hart thermistor equation parameters:

param1 = NTC Voltage bridge resistor in Ohms (default = 32000)

param2 = NTC Resistance in Ohms (default = 10000)

param3 = NTC Beta Coefficient (default = 3350)

As you state, the NTC is 8.8kOhm, the template uses 10k.
Anyways, I've added the following command in the Tasmota console and at least in the low twenties the temperature reading became much more accurate:
ADCParam1 2,12400,8800,3950

Feel free to try it out.

[nhatttr]

It's work

[matsch-hasi]

it is also on my side working. Thx a lot

[txtweet]

It's a great fix, thank you!

[Arek2PL]

Thank You!