I am in need of a sensor that can be buried under a farm road next to the gate. I thought that a magetic sensor would be ideal. My theory is that a car travelling over the sensor would give a sufficient change to be able to be processed by a Picaxe and notify the owner of visitors.
There are a number of loop circuits on the WWW but I would like to use something that only requires minimal digging in hard gravel.
Any assistance would be much appreciated. Preference is for device readily available in Australia.
Fred
There are a number of loop circuits on the WWW but I would like to use something that only requires minimal digging in hard gravel.
Any assistance would be much appreciated. Preference is for device readily available in Australia.
Fred