Bluetooth Relay Controller. With the application CtrlRelay BT can control 8 Relays independently by Bluetooth. Android & Arduino. Requires "Module "CtrlRelay BT by Sdsyc" available at: Through this application, you can control external hardware such as Lamp, electric motors, pumps, solenoids, horn, etc. You can switch remote loads up to 10 Amps at 220V.
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