BlueRelayShield: review

An italian company, Lemontech, kindly provided me a sample of their new Arduino shield, named BlueRelayShield:   The yellow-colored shield has: [checklist] a Bluetooth HC-05 module two SRD-05VDC relays  two 5mm 3 contacts screw terminals two status leds [/checklist] Using this shield you can switch on/off two loads (connected to the relays) sending commands via Bluetooth. HC-05 Module The included HC-05 module allows a Bluetooth device to talk with Arduino via…