These are black, self-adhesive silicone bumpers 8mm in diameter and about 2mm tall. These bumpers raise your PCB or project up off your desk which helps prevent short circuiting from bits of scrap wire floating about or setting a project down on a conductive surface. They also prevent your enclosure or PCB from sliding around. These black silicone bumpers come in strips of 5.
If you are interested in Internet of Things (IoT) or M2M projects check our open
source sensor platform Waspmote
which counts with more than 100 sensors available to use 'off the shelf', a complete API with hundreds of ready to use codes and a low consumption mode of just 0.7µA to ensure years of battery life.
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