4 Channel Relay Module Programmable w/ RS485 STM8S103F3

1Â£Â¬ 4 channel relay output 2Â£Â¬ STM8S103F3 Microcontroller with sdkÂ£Â¬ it is programmable 3Â£Â¬ 4 channel Optocoupler 4Â£Â¬ 4 status LEDs 5Â£Â¬ DC input (12VÂ£Â¬ work with power adapter) 6Â£Â¬ RS485 port 7Â£Â¬ Power LED 8Â£Â¬ User LED 9Â£Â¬ Reset key

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