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MQTT Smoke Detector Monitoring

MQTT Smoke Detector Monitoring

The smoke detector used in this demo is from Universal Security Instruments, https://www.universalsecurity.com/. This manufacturer provides turnkey products that have been designed, tested, and certified for use. It is recommended that these products not be modified when used for life safety applications. This post is for demonstration purposes only, do not replicate if used for anything other than lab testing. The intent of this post is to demonstrate how to handle external conditions and operate an IoT device with minimal…

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FFMpeg and ImageMagick Motion Extraction

FFMpeg and ImageMagick Motion Extraction

Capturing changes in video frames was the basis of an earlier post, https://www.cloudacm.com/?p=3423. The intent was to trim out the content that had little or no changes between frames. This saved storage space so more content could be retained. I had stumbled upon this demonstration that took a different approach. This method puts emphasis on the changes between frames by highlighting the differences. The areas with no change becomes the background. It reminded me of an earlier demo that I…

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Network UPS Tools and MQTT

Network UPS Tools and MQTT

This post will cover the installation of NUT which will be used to monitor UPS units from a single host. The data gathered by NUT will then be published to a MQTT broker. From there the data will be processed in Node-Red to provide a at a glance view of the UPS units as well as conditional actions. There have been others who have built interfaces that are specific to a make and model of UPS, such as here https://www.jmayes.com/cyberpower-backup-serial-protocol-and-interface/….

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