You are probably aware of the problem: how to ensure a minimum of security when you back out of a private property in a car, without visibility. Most of the time, people simply back out really slowly and hope that no one bumps into them. But you are still at the mercy of a distracted driver. Hence the idea of a light barrier triggering a light signal to warn oncoming traffic of the danger.
This week, we show you how to build a bar lamp based on RGB LEDs. It's easy and you will end up with something almost as pretty as those you may find in your favorite appliance store. Moreover, each LEDs can be controlled individually, which is not a common feature among design lamps.
Irrigation controllers are very convenient to avoid the garden watering chore, but they sometimes create disasters. As times goes by, and with changes in temperature, pipes tend to unbend and sometimes to separate at the joints, creating local inundations which can be devastating the vegetable patch, for example. Let's see how to detect leaks as quickly as possible...
Among the requests that we received in the past few weeks, one caught our attention more particularly: how to interface a Wiegand RFID badge reader via USB, using Yoctopuce modules. It's interesting because Wiegand readers are widely spread in access control systems, and they are readily and quite cheaply available on the net. The good news is that we now have a solution, using a simple Yocto-Serial.
We sometimes have customers who ask us whether we have some ideas on how to check that a display supposed to show videos is actually on and works correctly. It so happens that yes, we have a few ideas :-)
1 ... 3 4 5 6 7 8 9 10 11 12 13 ... 20 ... 23