Category Archives: ProPCB

Switchless Calling Bell

Introduction A calling bell or doorbell is a signaling device typically placed near a door. The electric doorbell was invented by Joseph Henry in 1831. The doorbells can be wired or wireless. Aim: This switchless bell project aims to construct a very simple wired door bell that you can place on the door of your house. It rings automatically when… Read More »

ProPCB : Low cost PCB prototyping service in India

ProEmbSys Technolgoies have started low cost PCB prototyping service in India. We offer you high quality PCB fabrication service in India. In this service, you can get 3pcs of boards of your design. For sizes and pricing please refer table below. PCBs ship in less than 12 working days from ordering (Excluding weekends and holidays). Gerber… Read More »