![]() Basically, the pin will stay high for as long as something is moving. In retrigger mode, the pin goes high when motion is detected and will go low after the delay from the time the last motion was detected. This switches the board between Retrigger or Normal mode. The only slightly confusing option is this jumper. There are a couple of potentiometers for tuning the behaviour, one of them adjusts the sensitivity and the other adjusts how long the output pin stays high when motion is detected. The output pin goes high if movement is detected, so that’s also very simple. The power pin can take anything from 4.5 to 12 volts - so that’s easy enough we can just take 5V directly from the Pi. These are readily available and are dead easy to hook up - there are only three pins to worry about. ![]() Let’s start with the old classic Passive Infra Red (PIR) motion sensor. We’ve got a couple of options: Passive Infra Red (PIR) Motion Sensor The obvious solution is to just use a motion sensor. What we really want to do, is to only have the screen turn on if someone is actually in front of the mirror. We could add a button, we could even try and get clever and add a capacitive touch sensor, maybe in the frame or behind the glass.īut then we’d end up with mucky fingerprints all over the mirror and it kind of defeats the whole point of having a magic mirror in the first place. But a magic mirror with a mouse and keyboard would look pretty silly. Pretty simple when you have a mouse or keyboard. If this was a desktop or a laptop then we’d just have it turn off the screen after a period of inactivity. These USB power monitors are really handy and you can trigger things like Power Delivery and Quick Charge to get different voltages for all sorts of things.Ħ00mA may not sound like a lot, but it all adds up, and have you seen the cost of electricity recently? What can we do? I measured the power consumption and was surprised at just how much power it was using - around 600mA. The problem I have is that it is always on and always drawing maximum power. If you want to watch the video version of this post, you can find it here. There’s nothing wrong with it functionally - it does everything I need. It’s really nice and it’s very handy to be able to get a quick snapshot of things at a glance. ![]() If you follow the YouTube channel or the blog you’ll know that I’ve got a magic mirror. 3-day free trial, then renews weekly for $2.#DOPPLER RADAR #ENERGY EFFICIENCY #FACE DETECTION #FACE RECOGNITION #MAGIC MIRROR #MOTION SENSOR #OPENCV #PI CAMERA 3-day free trial, then renews weekly for $5.99 ![]() You can subscribe to NOAA Live Weather Radar to get access to premium features, like hurricanes tracking and real time weather alerts. Plus, with our hurricane tracker, you'll stay informed about potential catastrophic weather events.īut don't worry - we've got your back with our weather alerts, ensuring you're always prepared for whatever the elements throw your way.ĭownload NOAA Live Weather Radar now, and make every day a weather-perfect day. Our app features a stunning weather radar map with multiple layers, so you can track storms and anticipate any upcoming weather changes. Welcome to NOAA Live Weather Radar, the ultimate weather companion for all your outdoor adventures! Get real-time weather updates straight from reliable sources, so you're always in the know about what's happening in your area. ![]()
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