Dirk Mueller

ja, das sollte gehen. die eigentliche limitierung ist dass wir im moment nur den support für sehr wenige SSL ciphersuites eincompiliert haben. genauer gesagt nur diese: https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp#L827-L830 ``` BR_TLS_RSA_WITH_AES_128_CBC_SHA256, BR_TLS_RSA_WITH_AES_256_CBC_SHA256,...

(für details: https://bearssl.org/support.html#guiding-rules )

so the issue is solved with the shorter power supply cable?

Thanks for the confirmation! This was a valuable learning exercise. I am keeping it around for a bit to see it can be documented somewhere.

see #411 for BME680. I started to look at it (I have a sensor myself), but the air quality sensing part is unfortunately closed source and I wasn't able to...

Gab es ein Gewitter? Die SDS011 stürzen gerne mal bei Blitze/Gewitter ab und antworten dann leider nicht mehr auf jeglichen seriellen input.

Related to this: https://publications.jrc.ec.europa.eu/repository/bitstream/JRC116534/kjna29826enn.pdf

@unsermanninchina thanks for being persistent on getting to the bottom of this issue. Much appreciated. Do you have any reading from an environmental sensor? I would be interested in temperature...

@unsermanninchina no normalization is being performed on the device. There have been a few studies done and while it is clear that there's an influence, there is no polynomial function...

@unsermanninchina there's debug output in the airRohr firmware, just set debug to 'max info'. There's a similar comparison test setup running in Beijing (so maybe it is close enough for...