This project started when our cat decided that playing with our thermometer is a good idea. Obviously, the thing looks enough like mouse with tail, at least when looked with cat’s eyes. The play with it ended very quickly and result was broken cable between display and sensor.The easiest way to fix this would obviously be buying a new 10€ device from local hardware store. But as I already have a weather station running on top of garage roof I started thinking that it would be nice just to display temperature from there.
Some months ago I built a simple wireless device to monitor temperature inside our household composting unit. Although the device worked initially well, I noticed two problems as time passed. First, the battery life wasn’t what I supposed it should be based on device data sheet and my measurements. Second, somehow moisture got into device no matter how well I tried to seal it with silicone. Continue reading “Compost Monitoring V2”
I recently joined a project called Blitzortung. The idea of project is to detect lightning positions by running many small devices that detect the electromagnetic signal caused by strike. Each device sends signal information along with accurate timestamp and coordinates to central server, which calculates actual position for strike. Timestamp and coordinates are obtained from GPS module. Continue reading “Blitzortung!”