HEATKEYS

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Microchip provides Microcontroller and Analog Semiconductors, with low-risk product development, lower total system cost and faster time to market.

Electronic circuits projects and diagrams

A new open source hardware project every month

Program in C on a PIC MCU or PIC24/dsPIC DSC quickly: compilers, programmers/debuggers, CCS C compiler includes 307+ built-in functions, 133+ example programs, pre-processor commands

List Threads - www.edaboard.com

This is an electronics forum where you can talk about anything related to circuit building, electronic projects and electrical repairs.

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Ham Radio site including Curcuit Diagrams, Antenna Construction, Radio Repairs, and serious fun.

Electronic Ciruits portal of free electronic circuits, schematics, designs, or diagrams & other resources for engineers, inventors & students.

8255, PPI, parallel, digital, digital interface card, interface card, DIO, I/O, robot, robotics, computer, control, motor, motor control, parallel port, infrared, emitter, detector

Embedded projects and decoder software

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.