Bolt cloud shows values even if there is no snsor connected


In LDR plant monitoring system, the data count in cloud is automatically getting updated even when the light sensor was not connected to the bolt. Why is this happening?


Even if your sensor is not connected, the pins on the Bolt have their own resistance and thus current flowing through it hence the value gets counted. The parameters of the air around the open pins also affects the values that are shown. Some of these parameters are temperature, humidity etc of the air.