ATTN: This is picture of very old board. I havent new pictures
What this shield can do?
- Work with any Arduino Nano
- Work from 15-30 AC/DC.
- Have 4x220v sensor
- Have 4x8A switch relay
- Have 0-10V output
- Have two RS-485
- 3 PT1000/pulled down analog input
- D2,D3,D4 - TX,RX and RE/DE of 485
- D11, D12, D13 - for second 485
- D5 - PWM output for 0-10V
- D6 - PWM output for second 0-10V
- D7-D10 - control for switch relay 1-4
- A4,A5,A6,A7 - pulled down input for PT1000
- A0-A3 - sensors input
Take board like on picture
- 1 - power in POSITIVE
- 2 - GND
- 3 - RS485B
- 4 - RS485A
- 5 - RS485B2
- 7 - RS485A2
- 6 - GND
- 8 - 5V
- 9 - A4
separator
- 10 - A5
- 11 - A6
- 12 - A7
- 13 - 0-10V output 2
- 14 - 0-10V output 1
- 15 - GND
- 16 - R4 closed
- 17 - R4 open
- 18 - R4 ground
- 1 - Sensor 1 220V / 24V Positive
- 2 - Sensor 1
- 3 - Sensor 2 220v / 24V Positive
- 4 - Sensor 2
- 5 - Sensor 3 220v / 24V Positive
- 6 - Sensor 3
- 7 - Sensor 4 220v / 24V Positive
- 8 - Sensor 4
- 9 - not connected
separator
- 10 - R1 ground
- 11 - R1 closed
- 12 - R1 open
- 13 - R2 ground
- 14 - R2 closed
- 15 - R2 open
- 16 - R3 ground
- 17 - R3 close
- 18 - R3 open
Do what you want. I do not rely for anything you do.