ZH-03B particle sensor sample anomalies - spikes in sample data
I've run a few of these sensors in Mycodo and I've noticed spikes in the graphs. These are indoor and I have a HEPA filter running constantly. When I have run the sensor under conditions of moderate pollution ( the mountains nearby are on fire ) I haven't noticed this as much - however under light conditions I see this problem more often.
Thanks Kyle! That was my concern as well - I had wondered why those folks that designed the PurpleAir gizmo used 2 of these. At first I thought it may be a sensor failure consideration but it could be due to these random spikes. The sensor is otherwise pretty good when there is something to sense. The housing solution they came up with is a pretty good idea and easy to replicate.