Here in Switzerland, there is a risk of energy shortages during next Winter, and we can't exclude having scheduled or unscheduled power outages. We took this opportunity to build a small device to help up manage the consequences of potential power outages.
At Yoctopuce, we like to travel by electric bike and we have decided to measure the charge of an electric bike battery with a Yocto-Watt and the Yocto-Visualization application. This doesn't require any programming, but a rather good knowledge of Yocto-Visualization to obtain a readable and pretty graph. We thought that monitoring the electrical consumption of a device could interest other people. Here is what we did.
At Yoctopuce, we like raspberries. So we thought that we would have our own local production, with an automatic watering system controlled by our modules. To do so, we retrieved a raspberry bush from the garden and we planted it in a pot with sensors to monitor its health. The aim is to adjust the water dispensing based on the humidity of the soil. Unfortunately, it's too late in the season to have raspberries this Summer, but we are still going to tell you about the modules used to maintain the raspberry bush alive.
Reading a potentiometer, push button or other resistive sensor via USB is a priori not very complicated. By the way, the Yocto-Knob is one of the very first modules we put for sale more than ten years ago. However, depending on the applications, the needs are not always the same. Therefore, over time we added new settings in order to refine the measures. Let's see this in details...
Two years ago, we told you about reed switches, especially to warn you about the difficulties that you can encounter when you want to use them to build a rev counter. But we had somewhat forgotten to tell you about Hall effect sensors, which can be a welcome substitute.
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