Antipasto Hardware Blog made this fun project for their fish tank! Full tutorial here.
This may or may not have implications for real-life shark tracking, but I’ll take an excuse to have my shark tweet me when he (or she, I’m no marine biologist) breaches the perimeter over to the sunny side of the tank.
Of course, I’m doing this with my toy shark-on-a-stick and only a laser level and a light sensor, but it’s possible to make this much more accurate and granular just by adding more strategically placed sensors/light sources into the mix…
As soon as the laser is obstructed by Bruce the shark himself, that light value drops. Once it’s below 400, the Android program issues a Red Alert warning that the sensor has been tripped, and sends a tweet.
Each Tuesday is BeagleBone Black Day here at Adafruit! What is the BeagleBone? The BeagleBones are a line of affordable single-board Linux computers (SBCs) created by Texas Instruments. New to the Bone? Grab one of our Adafruit BeagleBone Black Starter Packs and check out our extensive resources available on the Adafruit Learning System including a guide to setting up the Adafruit BeagleBone IO Python Library. We have a number of Bone accessories including add-on shields (called “capes”) and USB devices to help you do even more with your SBC. Need a nice display to go along with your Bone? Check out our fine selection of HDMI displays, we’ve tested all of them with the Beagle Bone Black!
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Maker Business — Micro:bit Educational Foundation
Wearables — Ace accessorizing
Electronics — Pseudodifferential Measurement
Biohacking — Ahnjili Zhuparris: Internet Usage with Regards to Hormonal Changes
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