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micha_pr
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3 weeks ago
No, haven't tried. You know - try and error cost a lot of time with such kind of errors ;) The sensor was working several months without this init problem - it was first time. So not sure when it will come up next time :) if restarting the sensor with begin() - the soft_reset is included, right? This was executed while restarting the ESP
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- Tags:
- BSEC
3 weeks ago
it seems there may occur a problem while init after restarting sensor. Following situation: Sensor was running a long time (3 weeks, last time block 28266 seconds - about 8 hours) in outdoor environment. Was stable and bad air was detected. There was a situation with very poor air quality (smoke from stove heaters or open fire has polluted the air) - that's why the values here were bad. In this situation the WiFi connection was lost and ESP was restarted (by program). BME did not initialize full - the IAQ and TVOC values did not change more from default values, only the resistance was changing after restart. Time, Timestamp, gas/Ohm, IAQ, IAQ accur., temp/°C, hum./%, staticIaq, co2Eq., VocEq.
Feb 23 21:43:34 .28257914, 103753, 306.28, 2.00, -1.20, 66.22, 723.24, 7232.40, 1000.00
Feb 23 21:43:37 .28260914, 103755, 305.96, 2.00, -1.20, 66.28, 722.44, 7224.43, 1000.00
Feb 23 21:43:40 .28263914, 103754, 305.67, 2.00, -1.20, 66.31, 721.72, 7217.27, 1000.00
Feb 23 21:43:43 .28266914, 103755, 306.10, 2.00, -1.20, 66.35, 722.79, 7227.91, 1000.00
Feb 23 21:43:48 . client connection failed (1) - restart
Feb 23 21:43:57 .Begin (setup)
Feb 23 21:43:58 .2980, 103753, 25.00, 0.00, -1.25, 66.32, 25.00, 500.00, 0.49
Feb 23 21:44:01 .5979, 103752, 25.00, 0.00, -1.30, 66.64, 25.00, 500.00, 0.49
Feb 23 21:44:04 .8980, 103754, 25.00, 0.00, -1.28, 66.61, 25.00, 500.00, 0.49
....
Feb 24 02:40:22 .17786979, 103697, 25.00, 1.00, -1.64, 74.48, 25.00, 500.00, 0.49
Feb 24 02:40:25 .17789980, 103696, 25.00, 1.00, -1.64, 74.45, 25.00, 500.00, 0.49
Feb 24 02:40:30 . client connection failed (1) - restart
Feb 24 02:40:36 .Begin (setup)
Feb 24 02:40:37 .2981, 103696, 25.00, 0.00, -1.65, 74.20, 25.00, 500.00, 0.49
Feb 24 02:40:40 .5980, 103696, 25.00, 0.00, -1.69, 74.53, 25.00, 500.00, 0.49
....
Feb 24 08:10:37 .19803337, 103565, 25.00, 1.00, -1.02, 73.23, 25.00, 500.00, 0.49
Feb 24 08:10:40 .19806337, 103565, 25.00, 1.00, -1.01, 73.22, 25.00, 500.00, 0.49 A second restart did not help (OA update with restart): Time, Timestamp, gas/Ohm, IAQ, IAQ accur., temp/°C, hum./%, staticIaq, co2Eq., VocEq.
Feb 24 08:10:40 .19806337, 103565, 25.00, 1.00, -1.01, 73.22, 25.00, 500.00, 0.49
Feb 24 08:10:41 .Begin OTA
Feb 24 08:10:49 .End OTA
Feb 24 08:10:59 .Begin (setup)
Feb 24 08:10:59 .9595, 103564, 25.00, 0.00, -1.00, 73.27, 25.00, 500.00, 0.49
Feb 24 08:11:02 .12595, 103564, 25.00, 0.00, -1.05, 73.57, 25.00, 500.00, 0.49
....
Feb 24 08:30:11 .1161594, 103586, 25.00, 1.00, -0.36, 71.65, 25.00, 500.00, 0.49
Feb 24 08:30:14 .1164595, 103585, 25.00, 1.00, -0.35, 71.62, 25.00, 500.00, 0.49
.... Only after power off/power on the sensor was working again as expected: Time, Timestamp, gas/Ohm, IAQ, IAQ accur., temp/°C, hum./%, staticIaq, co2Eq., VocEq.
Feb 24 08:42:21 .Begin (setup)
Feb 24 08:42:21 .#012BSEC library version 1.4.7.1
Feb 24 08:42:22 .3046, 103600, 25.00, 0.00, 0.19, 68.79, 25.00, 500.00, 0.49
Feb 24 08:42:25 .6046, 103600, 25.00, 0.00, 0.16, 69.02, 25.00, 500.00, 0.49
....
Feb 24 08:47:25 .306046, 103596, 25.00, 1.00, 0.48, 67.29, 25.00, 500.00, 0.49
Feb 24 08:47:28 .309046, 103598, 26.10, 1.00, 0.48, 67.22, 25.48, 501.92, 0.50
Feb 24 08:47:31 .312046, 103596, 28.21, 1.00, 0.47, 67.17, 26.40, 505.61, 0.51
Feb 24 08:47:34 .315046, 103597, 29.10, 1.00, 0.48, 67.07, 26.79, 507.17, 0.51 Is there any additional reset command what can be used instead of a physical power down? BTW - the sensor did make the restarts before (about 2 weeks) fine, I have seen the restarts of the ESP in log. I do not use the config_save/config_load functions.
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- Tags:
- BME680
3 weeks ago
Hi, it is running fine here (and stable (more or less - see other posts) with Wemos D1 mini. Have you checked the I2C address? -> iaqSensor.begin(BME680_I2C_ADDR_PRIMARY, Wire); in ben680_defs.h: #define BME680_I2C_ADDR_PRIMARY UINT8_C(0x76)
#define BME680_I2C_ADDR_SECONDARY UINT8_C(0x77) I'm using the files from ...Arduino\BSEC\src\inc Have you any more debug info?
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3 weeks ago
1 Like
handytech: "The BME680 is typically sensitive to almost all VOCs, with the exception of CO2 and Nitrogen." Is this right? interesting (for me... ;) ) ... The fresh air contains about 78% nitrogen (N2), 21% oxygen (O2), 0.04% carbon dioxide (CO2), water vapor and various noble gases. The exhaled air still contains 78% nitrogen (N2), but only about 17% oxygen (O2) and about 4% carbon dioxide (CO2) and about 1% other components such as acetone or hydrogen. If we want to detect (bad) used air in workrooms or living spaces - how it work if sensor cannot detect CO2? Will be detected the oxygen (O2) difference? Would be interesting for me to understand it. And - users of sensor are aware about the fact that the result will be "a CO2-equivalent output" without including the CO2 value itself? I know that sensor is detecting bad air - maybe you can explain it? ;) Thanks for any clarification :) (PS: the air values were taken from Wikipedia)
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