How clean is the air you are breathing? What does it contain, exactly? It's not easy to obtain a full answer with a simple sensor, as one should, in fact, look for all the volatile compounds, one after the other, that could be present. There are however single gas sensors that provide, for specific applications, appropriate answers. Let's see how to use them with the Yoctopuce modules.
We didn't have the chance to discuss about it until now, but the Yocto-Display and the Yocto-MaxiDisplay both include six analog inputs. Long story short, they feature the equivalent of a Yocto-Knob. This week, we explain how to use these inputs to interface a numeric keypad to build an access control device.
This week we are happy to introduce the YoctoHub-Wireless-SR. This device is almost the same as the YoctoHub-Wireless, except for the antenna: this YoctoHub uses an onboard PCB antenna rather than an external antenna. Of course, this does not provide the same performances. We have therefore decided to run a small Wi-Fi range testing session with various antennas.
The holiday season is starting presently and it is more than time to take out Christmas decorations. While rummaging in the attic, we happened on an old ornament in the shape of a snowman. We thought that there had to be a way to make this basic ornament into something much more interesting. And what if YOU could control our Christmas ornament with a Tweet? Let's see how to put this idea into practice…
In the last few years, a great number of cheap mini- (or even micro-) computers have become available on the market. Most use an ARM processor and a Linux operating system. The most well known is obviously the Raspberry Pi. Recently, a new competitor has emerged: the BeagleBone Black. We decided to order one to see what its board is worth.
1 ... 10 ... 20 ... 30 ... 40 ... 50 ... 60 61 62 63 64 65 66 67 68 69 70 71 ... 80 ... 90 91