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gfaman vor 36 Minuten
More pictures...
Portable display PM2.5
gfaman vor 44 Minuten
- Made new casing with the 3D printer, in different color - Made one support for outdoor fix, with external solar panel and add some recharge from the sun. Fixing it on a window outside, we can see imediatly for air quality only by looking the LED. Very very convenient... - Adjust the total thickness of the casing to be able to add a 1200mAh battery, giving more than 2 weeks autonomy with 20min measurement period. - Made a new PCB to correct some mistakes on the first one, and with a graphic display connector possibility (but SW not yet develop) - I put now 4 devices at home, one living room, one outside, and 2 in the bedroom. I launch the aircleaner with it is bad status. - Made a simple aircleaner with a portable fan and HEPA filter. It is enough to clean the air of kids's bedroom within 1h. 
Portable display PM2.5
Mansueto Grech
Mansueto Grech vor 6 Stunden
Hi Joost, thank you for the reply and information  
GPS assisted 10 MHz frequency reference
BreedJ vor 15 Stunden
Hi Mansueto, Unfortunatly not. The boards I had are all gone. I'm not planning to get new ones either. So if you like to build this project you will have to order them using the gerber files you can download. See '10MHz Reference Rev B - CAM' for those files.  
GPS assisted 10 MHz frequency reference
JakkeTet vor 1 Tag
I will install my sensors in some closed industrial metal box and I will install this somewhere outside. The idea is to install the "air sensors" in a single conduit, a short tube is pointed downward in order to keep rain outside and the entrance covered with some gross filter in order to keep insects outside, first comes the PT1000 T° sensor and the humidity sensor and after this the particle counter is connected to this tube, this sensor has a fan inside and I will use the suction of this fan to create a slow air flow for the T° sensor, after the particle sensor comes the CO2 sensor. Another down pipe is the outlet. The baro has a separate input as putting it in the main "input" will distort the readings because of the fan. See pic. The light and UV sensors are a bit more complicated, the ambient light sensor will have a simple acrylate matte dome but the UV's will be installed in a separate window that is made from several layers (min. 0,5 mm) of PTFE (Teflon) gasket tape. This tape has a good transmittance of the total UV range, professional sensors are also made with this. The idea is to install these light sensors slightly oblique and according to the ecliptica so there will be a better reading facing the sun. I may install an overall polished stainless shield around in order to keep the electronics cool in summer. Hope this helps! Jacques
Firmware update ESP32 Weather Station (180468)