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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Multiple DIP switches are often used to set a code that a microprocessor must read.
Described here is a simple circuit that generates a unique output voltages for any combination of the switch settings that the A/D input of the micro can read to minimize the number of I/O ports required.
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