Electronic Key - iButton

Implement simple access control and more with the electronic key (= iButton) on a 1-Wire technology. Features: Perfect for all types of projects: single-family homes, offices, warehouses, hotels, residential buildings and much more Simple and cost-effective Individual access authorizations Chip with a globally unique serial number Technical details: Serial number: Globally unique and unchangeable with 64Bit Data transfer rate: 16.3 kBit/s Temperature range: -40 °C to 85 °C Operating voltage: 2.8 V to 6 V Based on iButton Technology Type DS1990A + F5