This shield allows the Fishino board to control 4 devices by means of a relay. Each output has LEDs that indicate its status and a screw terminal with relay contacts (N.A./C./Common). The I / O lines are connected to the Fishino correspondents using a 2.54 mm pitch pin strip. The board is powered directly by Fishino, which supplies the 5 volts from its own regulator between the 5V and GND contacts. The pins used by Fishino to control the relays are pins 4, 5, 6 and 7.

Note: the shield can also be used with Arduino or other compatible boards, but first check that the pins of the relay's screw terminal do not come into contact with the USB connector, usually high in Arduino Uno, Mega, etc.

• Power supply: via Fishino
• Outputs: 4 relay
• Relè contacts: N.C. / N.A. / Common
• Relay contact capacity: 125 VAC 3 A / 24 VDC 3 A 
• Current consumption on each relay: 15-20 mA
• Dimensions (mm): 68x58x23
• Weight: 38 g