28 Apr '17, 10pm

Build an Arduino Multi-Node BLE Humidity and Temperature Sensor Monitor

Build an Arduino Multi-Node BLE Humidity and Temperature Sensor Monitor

Be forewarned, your results may be different, but at the time of this writing, mounted on a porch railing, it has performed well for about two months, including multi-day snow/sleet/rain/wind storms. It is notable that during times of prolonged high humidity levels, such as 3-4 consecutive rainy days, the polymer sensor film inside the sensor can become wet and produce inaccurately high humidity values. This is a known characteristic of the sensor (see sections 4.3 and 4.6 of the Si7020 datasheet ). It is recommended that a baking procedure be used, but it is also noted that accurate values will return over time under less extreme humidity conditions. I have noticed this wetting to occur and, while I didn't specifically use the baking procedure, I simply took the sensor indoors and placed it near a strong light for a few hours, and that seemed to work. I have also seen the...

Full article: https://www.allaboutcircuits.com/projects/build-an-arduin...

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Arduino Trinket - Hackaday

Arduino Trinket - Hackaday

hackaday.com 28 Apr '17, 8pm

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edf.org 30 Apr '17, 6pm

The Air Sensor Workgroup (ASW) is a broad-based group established to support the rapidly growing community of people devel...

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hackaday.com 28 Apr '17, 4pm

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arduino.cc 30 Apr '17, 5pm

The SD card is used to store information for the robot to read. It comes preloaded with images and sound files used in the...

Going the distance: LoRa+BLE makes it possible for IoT to go nearly anywhere geographically

Going the distance: LoRa+BLE makes it possible ...

ept.ca 25 Apr '17, 3pm

IoT networks that utilize low-power Bluetooth Low Energy (aka BLE and previously marketed as Bluetooth Smart) can be deplo...

How to Build Your Own Amazon Echo

spectrum.ieee.org 28 Apr '17, 6pm

Photos: W. Wayt Gibbs Speakers That Listen: A Raspberry Pi and a sound processing board are mounted on the back of these s...