Closed lolax80 closed 3 years ago
sfromis
commented
3 years ago Well deviations of 0.5°C is just a normal thing. BMP280 data sheet says "Absolute accuracy temperature +/- 0.5°C". And the data sheet for SI7021 says "Accuracy +/- 0.4°C". That's life.
If you have one temperature sensor, you know the temperature. If you have more than one, you just get confused :-)
lolax80
commented
3 years ago Sorry, the Differenz is More than 3 Degrees. Only the bmE Sensor shows the Right temp.
sfromis
commented
3 years ago No matter what difference you may see, it is just what the sensors report, unless you've configured TempOffset to adjust up/down. Tasmota can't do anything about that. Don't know details of your setup. but very local microclimate may be surprisingly varied.
ascillato2
commented
3 years ago Closing this issue as it has been answered.
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PROBLEM DESCRIPTION
i tested two sensors first bme280. temp 22 then CJMCU-8128, SI7921 TEMP=25.4 and BMP280=21.9
i have testet more than 3 CJMCU-8128 each of them show to high temperature. I have a long 30cm cable between the wemos and the sensor. a norma bmw280 on the same cable shows the right temperature.
Is there a problem in the firmware?
the sensor are not defect, they are from different charges.
the sensor is on 3v on the Wemos d1.
REQUESTED INFORMATION
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Read the Contributing Guide and Policy and the Code of Conduct Searched the problem in issues Searched the problem in discussions Searched the problem in the docs Searched the problem in the chat Device used (e.g., Sonoff Basic): Wemos D1 mini Tasmota binary firmware version number used: 9.4.0 [ x] Pre-compiled Self-compiled Flashing tools used: Esp-flasher Provide the output of command: Backlog Template; Module; GPIO 255: Configuration output here: {"NAME":"Generic","GPIO":[1,1,1,1,1,1,1,1,1,1,1,1,1,1],"FLAG":0,"BASE":18} {"Module":{"0":"Generic"}} {"GPIO0":{"0":"None"},"GPIO1":{"0":"None"},"GPIO2":{"0":"None"},"GPIO3":{"0":"None"},"GPIO4":{"640":"I2C SDA"},"GPIO5":{"608":"I2C SCL"},"GPIO9":{"0":"None"},"GPIO10":{"0":"None"},"GPIO12":{"0":"None"},"GPIO13":{"0":"None"},"GPIO14":{"0":"None"},"GPIO15":{"0":"None"},"GPIO16":{"0":"None"},"GPIO17":{"0":"None"}} If using rules, provide the output of this command: Backlog Rule1; Rule2; Rule3: Rules output here:
Provide the output of this command: Status 0: STATUS 0 output here: 6:19:40.630 MQT: stat/tasmota_9BCFB7/STATUS = {"Status":{"Module":0,"DeviceName":"Tasmota","FriendlyName":["Tasmota"],"Topic":"tasmota_9BCFB7","ButtonTopic":"0","Power":1,"PowerOnState":3,"LedState":1,"LedMask":"FFFF","SaveData":1,"SaveState":1,"SwitchTopic":"0","SwitchMode":[0,0,0,0,0,0,0,0],"ButtonRetain":0,"SwitchRetain":0,"SensorRetain":0,"PowerRetain":0,"InfoRetain":0,"StateRetain":0}} 16:19:40.664 MQT: stat/tasmota_9BCFB7/STATUS1 = {"StatusPRM":{"Baudrate":115200,"SerialConfig":"8N1","GroupTopic":"tasmotas","OtaUrl":"http://ota.tasmota.com/tasmota/release/tasmota.bin.gz","RestartReason":"Software/System restart","Uptime":"0T00:07:34","StartupUTC":"2021-04-24T15:12:06","Sleep":50,"CfgHolder":4617,"BootCount":21,"BCResetTime":"2021-03-28T10:02:42","SaveCount":31,"SaveAddress":"3FB000"}} 16:19:40.697 MQT: stat/tasmota_9BCFB7/STATUS2 = {"StatusFWR":{"Version":"9.4.0(tasmota)","BuildDateTime":"2021.04.24 12:47:08","Boot":31,"Core":"2_7_4_9","SDK":"2.2.2-dev(38a443e)","CpuFrequency":80,"Hardware":"ESP8266EX","CR":"361/699"}} 16:19:40.718 MQT: stat/tasmota_9BCFB7/STATUS3 = {"StatusLOG":{"SerialLog":2,"WebLog":2,"MqttLog":0,"SysLog":0,"LogHost":"","LogPort":514,"SSId":["Unifi",""],"TelePeriod":300,"Resolution":"558180C0","SetOption":["00008009","2805C8000100060000005A0A000000000000","00000080","00006000","00000000"]}} 16:19:40.754 MQT: stat/tasmota_9BCFB7/STATUS4 = {"StatusMEM":{"ProgramSize":695,"Free":1352,"Heap":9,"ProgramFlashSize":4096,"FlashSize":4096,"FlashChipId":"16405E","FlashFrequency":40,"FlashMode":3,"Features":["00000407","00A0458E","042E0181","69FE37C3","1A6C0004","D03EF989","0009385C","00201000","00000000"],"Drivers":"1,2,4,6,8,10,13,18,19,22,24,26,27,29,30,35,37,45,50","Sensors":"1,2,4,5,6,7,8,9,10,11,14,15,16,17,18,19,20,21,24,26,27,31,38,39,41,42,44,46,47,53,55,56,57,58,59,63,65,66,67,70,71,72,73,74"}} 16:19:40.801 MQT: stat/tasmota_9BCFB7/STATUS5 = {"StatusNET":{"Hostname":"tasmota_9BCFB7-4023","IPAddress":"192.168.69.84","Gateway":"192.168.69.254","Subnetmask":"255.255.255.0","DNSServer":"192.168.69.254","Mac":"E8:DB:84:9B:CF:B7","Webserver":2,"WifiConfig":4,"WifiPower":17.0}} 16:19:40.824 MQT: stat/tasmota9BCFB7/STATUS6 = {"StatusMQT":{"MqttHost":"xxx","MqttPort":1883,"MqttClientMask":"DVES%06X","MqttClient":"DVES_9BCFB7","MqttUser":"xxx","MqttCount":1,"MAX_PACKET_SIZE":1200,"KEEPALIVE":30,"SOCKET_TIMEOUT":4}} 16:19:40.846 MQT: stat/tasmota_9BCFB7/STATUS7 = {"StatusTIM":{"UTC":"2021-04-24T15:19:40","Local":"2021-04-24T16:19:40","StartDST":"2021-03-28T02:00:00","EndDST":"2021-10-31T03:00:00","Timezone":"+01:00"}} 16:19:40.870 MQT: stat/tasmota_9BCFB7/STATUS10 = {"StatusSNS":{"Time":"2021-04-24T16:19:40","SI7021":{"Temperature":25.1,"Humidity":37.1,"DewPoint":9.4},"BMP280":{"Temperature":24.7,"Pressure":1000.3},"CCS811":{"eCO2":1007,"TVOC":92},"PressureUnit":"hPa","TempUnit":"C"}} 16:19:40.892 MQT: stat/tasmota_9BCFB7/STATUS11 = {"StatusSTS":{"Time":"2021-04-24T16:19:40","Uptime":"0T00:07:34","UptimeSec":454,"Heap":9,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"POWER":"ON","Wifi":{"AP":1,"SSId":"Unifi","BSSId":"18:E8:29:6A:BD:96","Channel":10,"RSSI":100,"Signal":-38,"LinkCount":1,"Downtime":"0T00:00:03"}}}
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