Quantity   Component name
1 × beaglebone black
2 × DS18B20 1-wire temp sensors
1 × 5V Built in switching power supply http://www.dx.com/p/built-in-switching-power-supply-board-w-emi-filter-circuit-green-5v-2a-151552
1 × 2 Channel 5V Relay http://www.dx.com/p/2-channel-5v-high-level-trigger-relay-module-for-arduino-152072