1pc 4 Channel Relay Module Board STM8S103F3 Microcontroller RS485 Communication

1、4 channel relay output (a normally open, normally closed).

2、4 channel optical coupling isolation.

3、4 relay closed the LED light.

4、Circular DC interface, and DC terminal interface. Convenient power connection (12 v power supply voltage).

5、4 channel input interface.

Features:

4 channel relay output (a normally open, normally closed).

4 channel optical coupling isolation.

4 relay closed the LED light.

Circular DC interface, and DC terminal interface. Convenient power connection (12 v power supply voltage).

4 channel input interface.

A power indicator light.

A user LED light.

Specifications:

LED light: Yes

Power supply voltage: 12V

Channel: 4

Baud rate: 9600

Microcontroller: STM8S103F3

Communication interface: RS485

Reset button: Yes

Size: Approx. 7.8 x 7.7 x 1.8cm / 3 x 3 x 0.7inch

Quantity: 1pc

Weight: 85g

Serial assistant operation instructions:

Below are the test instructions for device number 1:

No. 1 relay close:

01 06 00 01 01 00 d9 9a

No. 1 relay open:

01 06 00 01 01 01 18 5a

No. 2 relay close:

01 06 00 01 02 00 d9 6a

No. 1 relay open:

01 06 00 01 02 01 18 aa

No. 3 relay close:

01 06 00 01 03 00 d8 fa

No. 1 relay open:

01 06 00 01 03 01 19 3a

No. 4 relay close:

01 06 00 01 04 00 da ca

No. 1 relay open:

01 06 00 01 04 01 1b 0a

All put out:

01 06 00 01 00 00 d8 0a

All light:

01 06 00 01 ff ff d9 ba

Reference:

Data download address: http://pan.baidu.com/s/1mgzKs3I(The data is in Chinese)

Package Included:

1 x 4 Channel Relay Module

Note:

Please allow 1-3cm differs due to manual measurement.

Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.