Yoctopuce designs, manufactures and sells USB devices to let your computer sit in the real world. Our USB modules are tiny, easy to install and easy to drive programmatically. Among them you will find:
Yocto-TemperatureTiny USB temperature sensor (thermometer), with built-in data logger | Yocto-BuzzerThis small USB driven buzzer can make sound and light, a convenient way to get your user's attention. |
This week, we continue our series on the search for the ideal battery to power Yoctopuce modules, especially when driven by a YoctoHub which can go into sleep mode. This is important, because standard USB batteries have the unfortunate habit of shutting down completely as soon as the hub goes to sleep. After the success of variant (C) of the Waveshare Solar Power Manager battery and the fiasco of variant (B), we decided to test variant (D), just to be sure.
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Almost ten years ago, we showed you how to combat humidity in a room using humidity-controlled ventilation. The system described had just then been installed in a cellar, where it worked efficiently until very recently. Unfortunately, the discovery of mold alerted us to a problem, and a quick check revealed that the system had broken down: the fan controlling the air intake had died.
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