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Sunday, February 17, 2013

Retriggerable 555 timing circuit: An interesting find

A friend of ours is working on a commercial project for low cost timing module. He request us for some help regarding designing a Mono-Shot timer. In general the circuit was using a NE555 in mono shot configuration. The problem was that he needed the mono-shot to start at power up and also it should be re-trigger-able with a button. And all this with the minimum set of components.

Sunday, February 10, 2013

Using Alternative Pins for AVR V-USB Implementation

We were trying to have a complete 8-bit port on ATmega8 and at the same time implement Objective Development's V-USB stack to communicate with the chip.