RS485 COMMUNICATION BOARD
Each one of this board have 8 outputs and 8 inputs. The input is protected with a zener to limit the voltage and protect the microcontroller. The output have a transistor and give 500mA at 12Vcc to power relays, led's... In the same RS485 bus can add up to 4 boards, this way the system can handle 32 inputs and 32 outputs from the main board or the dedicated software. The microcontroller have a firmware with a hexadecimal protocol to communicate the state of the inputs and set high or low state to the outputs.
![](https://file.pcbway.com/project/16/11/03/065434334.jpg)
![](https://file.pcbway.com/project/16/11/03/065439112.jpg)
![](https://file.pcbway.com/project/16/11/03/065444107.jpg)
Nov 03,2016
1,257 viewsReport item
- Comments(0)
- Likes(0)
You can only upload 1 files in total. Each file cannot exceed 2MB. Supports JPG, JPEG, GIF, PNG, BMP
0 / 10000