CloudACM

This post will expand on the topic of tiling video that was covered in this post, https://www.cloudacm.com/?p=3026.  The video sourced in this post are directional and is well suited for creating a 360 degree view of surroundings. The original video from each camera is 1080p, so the first step in this example is to reduce the resolution to 25 percent.  This command was run to make that adjustment. ### Resize videos to 1/4 of original ### ffmpeg -i DriverSide_Original.MOV -vf…

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When working with device electronics, it’s important to work within voltage and signal limits. Designing circuits that interact with those devices need to have expected results. There can be several stages in a circuit design where voltages or signals are changed. It can be extremely challenging to design without some kind of measurement at each stage. Having a tool that can measure multiple stages at the same time in realtime is key. Fortunately, this can be done for little cost…

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I’ve been using RTL_433 with a SDR for a few years now with modest success. This setup will detect and identify a variety of 433Mhz sensor readings. The output is piped to a MQTT broker and from there the readings are presented graphically. At first this was done on a Raspberry Pi running a bash script on startup, with the following one liner command. rtl_433 -F json | mosquitto_pub -h <MQTT-Broker> -i RTL_433 -l -t RTL_433/SDR_FEED Unpredictably, problems would arise…

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