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Extend Timer Range For The 555
Real Time Clock Using the PIC16CXXX
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AVR Dongle Circuit
This circuit is intended to program AVR controllers such as the AT90S1200 via the parallel port. The circuit is extremely simple. IC1 p...
Tweeter Used to Sense Vibrations
The creator built a neat looking project which uses a piezoelectric element from a tweeter to detect vibrations. He is using a Zilog eZ8 s...
Lead Acid Battery Protector
The circuit described here can be used to ensure that a 12 V sealed lead acid (SLA) gel battery isn’t discharged too deeply. The ...
Video Amplifier Circuit Diagram
Micropower Crystal Oscillator
Crystal oscillators for digital circuits are normally built as Pierce oscillators with an inverter.The inverter operates as a linear amplifi...