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Buy Box Ad Container Module for Desktop

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Relay Output Board Module,4‑Channel Relay Module 12V Channel Switch Input Relay Module Channel Relay Module Built to Last

Item Type: 4 Channel Relay ModuleRelay Communication: Multi-unit 485 network communication, the default communication address is 1 and the user can modify the address by himselfNote: IN1-IN4 are used to connect to the switch and read the switch status through 485, not to control the relay output through the input.The computer should read the switch status from IN1-IN4 every time which is queried, and the data cannot be sent to 485 actively.Note: IN1-IN4 cannot be connected to 220V (some buyers will make this mistake)The wiring method is as follows:IN1-GND (the default is high level, low level after turning on the switch) The computer sends instructions to read the status of the switch.IN2-GND (the default is high level, low level after turning on the switch) the computer sends instructions to read the switch state.IN3-GND (the default is high level, low level after turning on the switch) the computer sends instructions to read the switch state. IN4-GND (the default is high level, low level after turning on the switch) the computer sends instructions to read the status of the switch.Board resources:1. Reset button S12. LED indicator running D5Control instruction for group download sharing1. 4 relay outputs (one normally open, one normally closed)2. MCU STM8S103F33. 4 optocoupler isolation relay outputs4. 4 LED indicators of relay closed5. Circular DC interface and terminal DC interface. Convenient power connection (power supply voltage of 5V or 12V depends on the relay voltage)6. 4 input interfaces (dry node input, passive input, connected to GND)7. An RS485 communication interface.8. A power indicator9. A user LED light10. Reset button11. A SWIM download interface (STLINK-V2 download program, users can develop the program twice)1. Connect the LED to the user's LED2. TX RX connects to port 485 and TTL port of pin header3. User button KEY (red button on the left)4. EN 485 end of use5. The input ports IN1 -IN4 are directly connected to terminals6.K1 -K4 relay output control7. SWIM J13 Programming Software Size: Approx. 76 x 67mm / 3 x 2.6 inches