The Relay Shield is Compatible with Arduino smart module with 4 mechanical relays providing an easy way to control high voltage. The max switching power is 35VDC 70W for each channel. It can be directly controlled by Arduino through digital IOs with an external 6.5~12V DC supply. With the onboard 4 control keys,you can also control the high voltage without programming.(Manually).

Note : Make sure that the pins on the Shield do not touch the USB Connector on the Arduino

• Compatible with Arduino and Arduino Mega
• Automatic control and manual control
• 4 mechanical relays with photo-coupled circuit
• Equipped with screw holes for easy installation
• Light weight
• Small form factor

• Voltage : 7~12V
• Current : 8~250mA
• Switching Voltage : Max 35V
• Switching Current : Max 2A
• Frequency Response : -1~1dB
• Switching Power : Max 70W
• Relay Life: > 100000
• Caution : Placing 2 layers of electrical tape on the top of the Arduino's usb connector will prevent the relay shield from making contact. Do not operate voltage more than 35V DC.

1. Schematic - Relay Shield
2. Relay Control Code
3. Datasheet - AZL ARDUINO RELAY SHIELD