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See original GitHub issue

I’m using Raspberry Pi with MCP2515 connected to a network consisting of two Delta servo drives. I am trying to get this example to work:
for node_id in network.scanner.nodes:
    print("Found node %d!" % node_id)

As far as I can tell, sends SDO message to all possible nodes on the bus (1-128).

for node_id in range(1, limit + 1):
   + node_id, sdo_req)

But how does it actually find out there are nodes present (which method in the class)? i.e. which method is listening for a response message from the node?

Issue Analytics

  • State:closed
  • Created 5 years ago
  • Comments:5 (3 by maintainers)

github_iconTop GitHub Comments

christiansandbergcommented, Jun 13, 2018

You can create a can.Listener and attach it to Network.listeners.

class MyListener(can.Listener):
    def on_message_received(self, msg):

christiansandbergcommented, Jun 9, 2018

The NodeScanner.on_message_received method collects messages coming from slave nodes and is called from Network.notify which receives all messages coming in from the bus.

Read more comments on GitHub >

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