Now that I have headers and pins soldered on the CO detector, I’m ready to start taking some measurements with my test equipment. As I mentioned before, I prefer to use them in a certain order. First I’ll start by taking resistance measurements with my multimeter. One of the header pins is labeled GND1. I want to test if this ground is common to some other points on the board. Besides the negative battery terminal, this pin was also common…
I’ll be covering a tear down of an off the shelf CO detector in this post. Next I’ll cover some advanced features that I discovered while testing the CO detector. This unexpected discovery is the reasoning behind a slight delay in the publishing of this post. The CO detector I’ll be using in this example will be a First Alert Carbon Monoxide Alarm, model number CO400. It should be noted that tampering with the alarm can result in the unit…
In my last post I talked about RetroPie and the build it is based off of. I would like to continue with the discussion about unknown devices on a network. This situation isn’t unique to just the RetroPie, as we see the mass proliferation of IoT devices. Aside from all of the mobile devices, such as phones and tables, there is an increase number of “smart” devices that connect to the network wirelessly. Google, Amazon, and Apple are just a…