Magnetic Door Switch (Round) IRF610 Mechanical Dimensions 65 x 30

Mechanical Dimensions 65 x 30 x 48 mm

Sparkfun hook up guide for force sensing resistor

4046 is a Micropower Phase-Locked Loop (PLL) that comes with a phase detector for comparing the phase of the output signal with the input signal and adjust them in order to make the matching signals from both ends

so that they can work also if stacked directly to a metal surface

Magnetic Door Switch (Round) IRF610 Mechanical Dimensions 65 x 30Door switch sensor used for Home security for alarming doors and windows when they are opened. Contacts are closed when magnet and sensor are together. The sensor consists of two main parts, a magnet and as switch with terminals to connect the signal wires. The magnet mounts to a door or access panel, while the switch mounts to the frame. When the door is closed the two pieces should be in close contact of each other. When the door opens this distance