pynumato 0.0.1

Library to communicate with relays

Pynumato

Pynumato allows to control relay modules (ON or OFF states). This module is only compatible with the Numato series 1-2-4-8 Channels USB Solid State Relay Module, listed in the following link : <https://numato.com/?s=Channel+USB+Solid+State+Relay+Module>.

Requirement

The module requires the minimum configuration :

• Windows7 64-bits
• Linux 64-bits
• Python3.7

How to use it

The command line to drive relays are :

python3 -m pynumato.pynumato --cmd=<string to drive relays> --relays=<Number of relays> --port=<port> --baudrate=<baudrate>

Parameters are :

• the number of relays to drive (default is 1)

• the port (default is /dev/ttyUSB1)

• the baudrate (default is 921600)

• the command to drive relays

A relay can receive two types of orders (OFF or ON). The order in the module is encoding by an ASCII character such as :

"c" : close the relay (OFF state)

"o" : open the relay (ON state)

"x" : do not change the current state of the relay

In an example, if we have :

• 4 available relays : 0, 1, 2 and 3
• baudrate is 921600
• port is COM27

To turn on all relays, string command is oooo and the command line is :

python3 -m pynumato.pynumato --cmd="oooo" --relays=2 --port="COM27" --baudrate=921600

To turn off all relays, string command is cccc and the command line is :

python3 -m pynumato.pynumato --cmd="cccc" --relays=2 --port="COM27" --baudrate=921600

To turn on the relay 0, and it does not matter about other ones, string command is oxxx and the command line is :

python3 -m pynumato.pynumato --cmd="oxxx" --relays=2 --port="COM27" --baudrate=921600

To turn on the relays 1 and 3, and it does not matter about other ones, string command is xoxoand the command line is :

python3 -m pynumato.pynumato --cmd="xoxo" --relays=2 --port="COM27" --baudrate=921600