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Power on reset problem

A project log for Home security

Home security project based on atmega and ardunio. MQTT gateway for data gathering.

vysocan76vysocan76 07/18/2014 at 08:580 Comments

After connecting GSM modem and creating some functions to interact with it, I have found that the wiz820io is not recovering correctly on power failure. There is needed to reset it after power on. Sadly I have connected the reset of atmega to wiz820io. Now I'm investigating to use the Ethernet INT signal that is not used as separate reset or to add a watchdog chip to the board.

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