This is a Bluetooth Accelerometer from KKM that has been enabled for 蘑菇视频. The device is low-cost, lightweight, rechargeable and waterproof.
The device records motion events that are subsequently posted to an http endpoint defined by a 蘑菇视频 Network configuration. The data arrives as a JSON POST making it easy to collect using any standard web frameworks and infrastructure.
See it in action here:
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Samples of these devices are available as part of our early access program.