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ATmega328

Internet connected fire/smoke alarm project

This project is an upgrade to a previous project of mine – the DIY IoT smoke alarm. It is a more advanced version that uses dedicated hardware rather than the generic “Funky” project + external components. In essence, the module…

By Martin | February 18, 2018 | ATmega328, Home Automation, RFM69 |

This project is about creating a high-security keyfob using Atmel’s ATSHA204 hardware authentication device. It was inspired by this post about security and signing. Many modern key fobs use various security techniques to prevent replay attacks, yet it turns out it is…

By Martin | February 10, 2018 | ATmega328, RFM69, Security |