hello all,
i want to build a smartcity network of outdoor sensors.
Bought the proposed one, waiting to arrive.
but i would like my sensors to have the extra data of a sensirion 5x, CO, NO, etc.
can you propose me something else ?
i want to build something cheap and easy. plug it outdoors, connect to wifi and forget.
We use
for SEN55 and MQTT (there are bin files)
If you want VCO and NOx (index SEN55) you need an additional communication.
We use MQTT / Node Red /MariaDB and Grafana (Linux server)
There are documentation and Gerber files (most Dutch)
Please check the resolution of each sensor indidually on the system you choose.
It is useless to have a sensor with 10-20 as resolution if the variation are 5-10.
CO2 for outdoor is also useless since the cambrian era is finished 
The variation are to small to be seen by cheap sensors.
Good sensor for gas exist and can be added in a station setup but they cost more than 500 €.
For example:
as for the moment, i’m very happy. Package arrived and i have my first sensor online…
Sensor #91200, at Map Sensor.Community
i havent understood the use of the tubes… a friend of mine has a 3d printer, maybe we will make a box and share…
i went to the map, clicked on points but more info does not seem to work…
https://cmlleusden.nl/kaart.html
The file for ordering PCB (Gerber File) can you find in the Doc directory (Git Hub)
The map are the local sensors (find on “Meer info”)
https://cmlleusden.nl:19564/d/adtpk1dei992ca/geomappm-leusden?orgId=1&from=now-6h&to=now&timezone=browser
well right now i have 2 sensors, with SDS011 and BME280. They are working fine, i’m in the process of sending data to my own server also.
but today i received 2 SEN55!
right now i use NRZ-2024-135 firmware.
which firmware should i use to utilize SEN55 ?
You have to use a beta branch but I seems I am the only one who succeeded to make my code work…
Maybe some other people continued to work on it.
More than 20 x SEN55 working with VOC
your firmware with SEN55, sends me that data…
Raw Data: {“esp8266id”: “10653388”, “software_version”: “FWL-2024-03-P5”, “sensordatavalues”:[{“value_type”:“SEN55_P0”,“value”:“66.11”},{“value_type”:“SEN55_P2”,“value”:“69.31”},{“value_type”:“SEN55_P4”,“value”:“69.31”},{“value_type”:“SEN55_P1”,“value”:“69.31”},{“value_type”:“SEN55_N05”,“value”:“448.92”},{“value_type”:“SEN55_N1”,“value”:“517.44”},{“value_type”:“SEN55_N25”,“value”:“519.25”},{“value_type”:“SEN55_N4”,“value”:“519.37”},{“value_type”:“SEN55_N10”,“value”:“519.48”},{“value_type”:“SEN55_TS”,“value”:“0.28”},{“value_type”:“SEN55_temperature”,“value”:“21.26”},{“value_type”:“SEN55_humidity”,“value”:“53.77”},{“value_type”:“SEN55_co2_ppm”,“value”:“1.00”},{“value_type”:“samples”,“value”:“2865”},{“value_type”:“min_micro”,“value”:“50069”},{“value_type”:“max_micro”,“value”:“144778”},{“value_type”:“interval”,“value”:“145000”},{“value_type”:“signal”,“value”:“-61”}]}
i made this first post 22 days ago. In these 22 days, ordered and got my sensor, i made a second one, now i have 6 in my city.
thank you all, for your help… my target is 20 sensors in 2 months…
then i will start to scream about air pollution
Regarding co2 its not true. scd4x can produce valuable readings between 420 and 52x. Of cours this is nothing in compare to use it at unventilated home where he can spike to 3000ppm. Check apollo air 1 as he got sensiron sen55 scd4x dps3xx mics4514 so he can provide pm1 2.5 10 voc nox co2 co no2 pressure temperature humidity. I wonder only how much of it can be use via mqtt relay to publish in sensor.community map. Got no clue how to publish there so far.
We use Node Red
sensor => MQTT => Node Red => sensor.community (and)
sensor => MQTT => Node Red => MariaDB/Grafana
we managed to send data both to mysql (via php) and to influx2.
we are in the procedure of making the backend
Hi M,
I’m not familiar with your sensors.
I’m trying Meshtastic and the models I’ve got are Heltec V3, which I’ve got ‘talking’ between 2 of them although I haven’t got far with them.
They could be very interesting and may do what you want??
R.
in january 15, i posted this.
i decided to build a sensor network in my city
2 months and 10 days later, with the help of many people from sensor.community, i am proud to present our first map…
keep on sensoring
