Well pleased with these boards. All operated ok. Each relay is 75 ohms and draws 66 milliamperes. Use a separate 5 volt regulator to power them when operating with an arduino. Pulling down the input pin to common turns on the relay. I made a Bluetooth controlled arduino board that controls the relays as shown in my photo. The board has red leds to indicate which relay is turned on. You can replace the pin strip with a Molex connector, but its a tight fit with the pins.

Well pleased with these boards. All operated ok. Each relay is 75 ohms and draws 66 milliamperes. Use a separate 5 volt regulator to power them when operating with an arduino. Pulling down the input pin to common turns on the relay. I made a Bluetooth controlled arduino board that controls the relays as shown in my photo. The board has red leds to indicate which relay is turned on. You can replace the pin strip with a Molex connector, but its a tight fit with the pins.

Well pleased with these boards. All operated ok. Each relay is 75 ohms and draws 66 milliamperes. Use a separate 5 volt regulator to power them when operating with an arduino. Pulling down the input pin to common turns on the relay. I made a Bluetooth controlled arduino board that controls the relays as shown in my photo. The board has red leds to indicate which relay is turned on. You can replace the pin strip with a Molex connector, but its a tight fit with the pins.

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