CloudACM

This post will cover directly interfacing the NRF24L01 module with either the ESP32 or ESP8266 Wemos modules.  In earlier posts I had used the Arduino Mini module as a shim. Here is the wiring diagram for the ESP8266 Wemos Module. Here is the Arduino code used to send readings from the NRF24L01 module to a MQTT broker. #include “SPI.h” #include “NRFLite.h” #include <ESP8266WiFi.h> // For ESP8266 //#include <WiFi.h> // For ESP32, uncomment this line and comment out the above line…

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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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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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