I see the VOC value is 12799999, that is an invalid value.

But this is strange. The VOC is returned by the Bosch BME680, together with temperature, pressure and humidity, and these 3 are ok. Even more, the sensor communication is digital, over I2C, leaving no space for error.

I issued a remote reset request for 8200004F, to reinitialise the sensor. If the problem persists, I will need to have your BME680 replaced.

LE: https://uradmonitor.com/?open=8200004F&sensor=voc

@ShimmerNZ private messaging has just been added. Thanks for the excellent suggestion!

This will be fixed soon. HTTPS is back.

Problem fixed, Pia once again, thank you for your sharp vigilance.

@eldaria: I’m afraid not.

@urs: you need the following components:
3x Resistor SMD0805 1K
1x Resistor SMD0805 100K
2x Resistor SMD0805 1M
1x Capacitor SMD0805 100pF
1x Capacitor SMD0805 10nF
1x Capacitor SMD0805 100nF
1x Capacitor SMD0805 10uF
1x IC SMD MAX4466EXK+T
1x Electret Microphone 6×2.2mm like these: http://g03.a.alicdn.com/kf/HTB1Xj5.OVXXXXbTapXXq6xXFXXX1/Free-shipping-30PCS-6-2-2-Microphones-font-b-capacitive-b-font-electret-font-b-pickup.jpg

The components will need tweezers, soldering paste and a hot air soldering station. Careful not to damage the other parts of the board with the hot air. The circuit/pcb layout is as follows:

Excellent question.

A/KIT1/A3 compute CPM counting all pulses during every minute. Then they send the data online.

Assuming the radiation field would be above the background level, you would sense the source if the one-minute average would also be above the background level. But keep in mind the inverse square law, which leaves little detection space if your speed increases distance from source very quickly.

I’ll write it down in an equation if I find the time.

Hello Urs,

While this feature is not available, it is definitely worth some additional research. I will keep it in mind for a next firmware update.