You are using an Eero router: Trouble connecting with an Eero router.The network has a captive portal, or the hostnames or ports are blocked: Using Captive Portal Networks.The network does not meet the WiFi requirements: Sensor Won’t Connect to your WiFi Network.If your sensor is not connected, view these ideas for troubleshooting: The PurpleAir-**** network will become unavailable, providing the sensor has been configured to a network with an internet connection. You can reconnect your WiFi-enabled device to your local WiFi to regain internet access. Disconnect from the PurpleAir-**** Network: This is due to PurpleAir sensors no longer reporting to ThingSpeak. It will continue to say “Checking Status” even though it may be connected. Note: At this time, PurpleAir devices will not display the “Looking Good” message on the configuration page. Once the WiFi is connected, the message at the top of the page will say, “Looking Good.”ĭefinitions for the status indicators at the bottom of the article can be found here. This process may take a couple of minutes. Your PurpleAir sensor will begin trying to connect to WiFi. Enter the password for the local WiFi network and press “Save.” Select the network you are connecting your sensor to in the available list. More troubleshooting steps are found here: Can’t See the Sensor's Network. If you do not see the sensor’s PurpleAir-**** network, it may already be configured to WiFi. If it still does not appear, try temporarily pausing or disabling mobile data on your WiFi-enabled device and re-entering the URL above. If it does not appear, open a web browser and enter “ ” into the address bar. It may take up to 10 minutes for the PurpleAir-**** network to appear after the device is connected to power.ĭepending on the WiFi-enabled device used, a popup will appear. The hotspot’s name will be PurpleAir-**** (the asterisks will be a 2-4 character code determined by the last few characters of the sensor’s device ID). Open the network settings on your WiFi-enabled device (phone, computer, etc.) and connect to the sensor’s hotspot. Reference this article to change the LED settings on your sensor: Change the LED Settings on your Sensors. If this device has been registered and you do not see a light, the LEDs may have been turned off. For devices with a full-color LED, it will change to the color associated with the current air quality. When the device is plugged in, a blue light will appear for a few moments while the device boots up. If you see this light, your device is receiving power. Check your device for a light that has turned on. Power on your sensor:Ĭonnect your device to power using an available power source. To set up this device, you will need the sensor’s device ID, an email associated with the sensor, a local WiFi network, and a WiFi-enabled device like a phone or computer. Maybe the new nano labs will come up with something soon.This guide will help you set up your PurpleAir sensor. But so far cost is a real barrier for measuring ultrafine particles. They use DiscMINIs for the ultrafine particles.Īs you know, I would also love to see a bicycle sensor network that could calibrate off of stationary monitors from time to time. Mueller and others have done similar projects ( ) in Zurich using multi-pollutant monitor boxes on top of light rail vehicles, a brilliant idea. ![]() Their particle metric is Black Carbon, a pretty good mobile indicator, and they look at Nitrogen Oxides also. Joshua Apte and co-authors have done very fine grained mobile lab street mapping using Google vehicles ( ). There are some very inexpensive particle sensors, such as Shinyeis, but reports are that they are not always accurate. ![]() These monitors are both accurate and pretty expensive. Or some indoor sources like candles and cooking. Our bench instruments, used in the Boston area by Tufts and community partners like Somerville Transportation Equity Partnership (STEP) both in stationary boxes and in mobile labs, generally count between 10,000 and 50,000 UFP per cubic centimeter but sometimes more, depending on meteorology and proximity to sources, especially mobile sources like highways, rail and aviation. Ultimately it would be most helpful to have relatively inexpensive ultrafine particle (UFP) sensors that could count particles per cubic centimeter in the 5 nm to 100 nm size range. Dylos also makes some pretty well-regarded instruments that measure pretty small airborne particles. They presented their initial ideas for this at an EPA community sensor conference in RTP NC several years ago. And Weather Underground is a great idea for a host network. Hi Jeff - My guess is that if Weather Underground and EPA and CARB have been involved the product is probably pretty good. Wig Zamore also chimed in on the mailing list:
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