As I’m not very experienced with NodeMCU yet I’m a bit stuck.
I’ve bought the kit, assembled and flashed it but I get no data at all from the SDS. I think it’s power related (fan not spinning, no flashing LED) but I don’t know where to start with debugging. I’ve measured the SDS 5V and GND PINs and there’s voltage so maybe it’s the data connection.
As advised in the troubleshooting section I’ve redone the cabling several times, reflashed and replaced some cables to no avail. Pictures are attached, maybe I’ve gone insane while trying to figure this out.
During the setup I’ve flashed the NodeMCU after assembly, might that have caused an issue on the SDS? Would anyone have some advice on how to further troubleshoot?
airRohr: NRZ-2020-133/EN mounting FS... opened config file... parsed json... output debug text to displays... Connecting to 123 ....SNTP synced: Wed Feb 17 16:13:16 2021 twoStageOTAUpdate R/ SDS011 version date /R SDS011 version date HTTP GET: firmware.sensor.community:443/airrohr/update/latest_en.bin.md5 GET r: 200 output debug text to displays... No newer version available. . WiFi connected, IP is: xy Starting Webserver... xy ws: root ... ws: values ... ws: root ... ws: status ... ws: root ... ws: values ... R/ BME280 Temperature (°C): 21.26 Pressure (hPa): 97253.69 Humidity (%): 39.14 ---- /R BME280 ## Sending to sensor.community - BME280 Succeeded - api.sensor.community ## Sending to madavi.de: Succeeded - api-rrd.madavi.de Time for Sending (ms): 413
Parameter Value Firmware version NRZ-2020-133 ST:1 SDK:2.2.2-dev(38a443e) Core:2.7.3-3-g2843a5ac=20703003 lwIP:STABLE-2_1_2_RELEASE glue:1.2-30-g92add50 BearSSL:5c771be Free Memory 31200 Heap Fragmentation 3 % Last OTA 6 min, 52s NTP Sync 1 NTP Info 192.168.1.1 (?) reachable: Yes Time (UTC) Wed Feb 17 16:20:11 2021 Uptime 6 min, 52s Reset Reason Power On SDS011 only errors WiFi 0/-58/0 OTA Return 200 SDS011 2 <--------------increases Number of measurements 2 Time spent uploading 492 ms
|Sensor|Parameter|Value| | --- | --- | --- | |SDS011|PM2.5|- µg/m³| |SDS011|PM10|- µg/m³| || |BME280|temperature|21.5 °C| |BME280|air pressure|972.50 hPa| |BME280|humidity|38.1 %| || |WiFi|signal strength|-51 dBm| |WiFi|signal quality|98 %|![sensor |666x500]
Any pointers are much appreciated!