Dell Inspiron 15 7000 Battery Fire

I always wondered about posts and videos reporting laptop and cell phone battery fires. I do not have to any longer. My husband has a Dell Inspiron 15 7000. He closed the lid on it Thursday night and left it on the couch. The laptop goes to sleep and everything is good. Friday morning the laptop started smoking. This is what […]

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Ubiquiti announces UniFi nanoHD 4×4 MU-MIMO 5GHz / 2×2 2.4GHz 802.11af Wireless Access Point

With an MSRP of $179 (1x) / $875 (5x), the new Unifi nanoHD access point is well priced. Especially considering the 802.11af power delivery, and 4×4 MU-MIMO nature of its 5GHz radio. 2.4GHz is a much more pedestrian 2×2, which is fine for most applications. Looks like these should hit retail around the end of the month. Our Smallest Access […]

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LoRaWAN water level sensor

I’ve been thinking about doing something similar to this water level monitoring sensor, but with temperature, at a location that’s just a little too far for Wi-Fi. There are some good ideas here. For e.g. I didn’t know that the TPL5110 timer existed. The components are all on Arduino shields to reduce as much cables as possible. There is a […]

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