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.
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.
As I kept adding peripherals to a 66 pin PIC project , i realized i was going to end up with loads of connectors, or run out of usable IO pins .. So I scaled down to 44 pic PIC and I2C keeping interrupt provisions for the control and comms inputs. This MCP23017 I2C expander circuit provided the...
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