Add authorized-nodes filtering example to all master examples

[Copilot]

All master node examples lacked a reference pattern for restricting which node IDs are authorized to remain allocated in the mesh — a common production hardening step.

Adds a commented-out authorized-nodes filtering snippet immediately after every mesh.DHCP() call across all six master example files, with indentation matching each file's style.

Files updated:

• examples/RF24Mesh_Example_Master/RF24Mesh_Example_Master.ino
• examples/RF24Mesh_Example_Master_Statics/RF24Mesh_Example_Master_Statics.ino
• examples/RF24Mesh_Example_Master_To_Nodes/RF24Mesh_Example_Master_To_Nodes.ino
• examples_RPi/RF24Mesh_Example_Master.cpp
• examples_RPi/RF24Mesh_Example_Master.py
• examples_pico/RF24Mesh_Example_Master.cpp

C/C++ snippet (inserted after mesh.DHCP();):

// The following code can be un-commented in a production environment to limit the authorized nodes
// to a specified list of nodes. Any nodes not in this list will be de-allocated. Can be run on a timer.
// AUTHORIZED NODES LIST:
/*for(int i=0; i< mesh.addrListTop; i++){
    if(mesh.addrList[i].nodeID != 2 && mesh.addrList[i].nodeID != 3 && mesh.addrList[i].nodeID != 4){
        mesh.addrList[i].address = 0;
    }
}*/

Python equivalent (inserted after mesh.DHCP()):

# The following code can be un-commented in a production environment to limit
# the authorized nodes to a specified list of nodes. Any nodes not in this list
# will be de-allocated. Can be run on a timer.
# AUTHORIZED NODES LIST:
# for i in range(mesh.addrListTop):
#     if mesh.addrList[i].nodeID not in (2, 3, 4):
#         mesh.addrList[i].address = 0

No runtime behavior is changed; all new code is comment-only.

Original prompt

Update all master examples in repository nRF24/RF24Mesh to include an authorized-nodes filtering example immediately after the call to mesh.DHCP() (or the Python equivalent location directly after mesh.DHCP()).

Goal:

• Add the provided commented example snippet to all master examples so users can optionally restrict authorized nodes by node ID.
• Preserve existing behavior by keeping the new logic commented out.
• Match each file’s language/style.

Files to update:

• examples/RF24Mesh_Example_Master/RF24Mesh_Example_Master.ino
• examples/RF24Mesh_Example_Master_Statics/RF24Mesh_Example_Master_Statics.ino
• examples/RF24Mesh_Example_Master_To_Nodes/RF24Mesh_Example_Master_To_Nodes.ino
• examples_RPi/RF24Mesh_Example_Master.cpp
• examples_RPi/RF24Mesh_Example_Master.py
• examples_pico/RF24Mesh_Example_Master.cpp

Required C/C++ snippet to add after mesh.DHCP();:

// The following code can be commented out in a production environment to limit the authorized nodes
// to a specified list of nodes. Any nodes not in this list will be de-allocated. Can be run on a timer.
// AUTHORIZED NODES LIST:
/*for(int i=0; i< mesh.addrListTop; i++){
    if(mesh.addrList[i].nodeID != 2 && mesh.addrList[i].nodeID != 3 && mesh.addrList[i].nodeID != 4){
        mesh.addrList[i].address = 0;
    }
}*/

For the Python file, add the equivalent commented Python example directly after mesh.DHCP() using Python comment syntax and idiomatic range(mesh.addrListTop) / membership check against (2, 3, 4).

Constraints:

• Do not change runtime behavior besides adding comments/examples.
• Keep formatting consistent with surrounding code.
• Create a pull request with these changes.

The following is the prior conversation context from the user's chat exploration (may be truncated):

User: i want to add the following code to all the master examples in the RF24Mesh library located at @nRF24/RF24Mesh. This is the code: // The following code can be commented out in a production environment to limit the authorized nodes
// to a specified list of nodes. Any nodes not in this list will be de-allocated. Can be run on a timer.
// AUTHORIZED NODES LIST:
/for(int i=0; i< mesh.addrListTop; i++){
if(mesh.addrList[i].nodeID != 2 && mesh.addrList[i].nodeID != 3 && mesh.addrList[i].nodeID != 4){
mesh.addrList[i].address = 0;
}
}/

Assistant: I’m ready to proceed, but I need you to accept the pending authorization prompt so I can apply that commented “AUTHORIZED NODES LIST” snippet across the RF24Mesh master examples and open the update for review.

User: can you show me the code first?

Assistant: Yes — here’s the code I’d add to the master examples first, before making any PR.

The repo appears to have these master examples:

• examples/RF24Mesh_Example_Master/RF24Mesh_Example_Master.ino
• examples/RF24Mesh_Example_Master_Statics/RF24Mesh_Example_Master_Statics.ino
• examples/RF24Mesh_Example_Master_To_Nodes/RF24Mesh_Example_Master_To_Nodes.ino
• examples_RPi/RF24Mesh_Example_Master.cpp
• examples_RPi/RF24Mesh_Example_Master.py
• examples_pico/RF24Mesh_Example_Master.cpp

The code search results I used may be incomplete because that tool only returns up to 10 matches. You can view more in GitHub code search here:
https://github.com/search?q=repo%3AnRF24%2FRF24Mesh+RF24Mesh_Example_Master&type=code

Proposed insertion

I’d place this immediately after mesh.DHCP(); in each master example.

// The following code can be commented out in a production environment to limit the authorized nodes
// to a specified list of nodes. Any nodes not in this list will be de-allocated. Can be run on a timer.
// AUTHORIZED NODES LIST:
/*for(int i=0; i< mesh.addrListTop; i++){
    if(mesh.addrList[i].nodeID != 2 && mesh.addrList[i].nodeID != 3 && mesh.addrList[i].nodeID != 4){
        mesh.addrList[i].address = 0;
    }
}*/

Example of how it would look in the main Arduino master sketch

void loop() {

  // Call mesh.update to keep the network updated
  mesh.update();

  // In addition, keep the 'DHCP service' running on the master node so addresses will
  // be assigned to the sensor nodes
  mesh.DHCP();

  // The following code can be commented out in a production environment to limit the authorized nodes
  // to a specified list of nodes. Any nodes not in this list will be de-allocated. Can be run on a timer.
  // AUTHORIZED NODES LIST:
  /*for(int i=0; i< mesh.addrListTop; i++){
      if(mesh.addrList[i].nodeID != 2 && mesh.addrList[i].nodeID != 3 && mesh.addrList[i].nodeID != 4){
          mesh.addrList[i].address = 0;
      }
  }*/

  // Check for incoming data from the sensors
  if (network.available()) {
    RF24NetworkHea...

</details>



<!-- START COPILOT CODING AGENT SUFFIX -->

*This pull request was created from Copilot chat.*
>

[TMRh20]

closes #264

[github-actions]

Memory usage change @ 76c4d06

Board	Flash	%	RAM for global variables	%
arduino:avr:nano	0 - 0	0 - 0	0 - 0	0 - 0
arduino:samd:mkrzero	0 - 0	0 - 0	0 - 0	0 - 0

Click for full report per board

arduino:avr:nano

Sketch	Flash	%	RAM for global variables	%
examples/RF24Mesh_Example	0	0	0	0
examples/RF24Mesh_Example_Master_Statics	0	0	0	0
examples/RF24Mesh_Example_Master_To_Nodes	0	0	0	0
examples/RF24Mesh_Example_Node2Node	0	0	0	0
examples/RF24Mesh_Example_Node2NodeExtra	0	0	0	0
examples/RF24Mesh_SerialConfig	0	0	0	0
examples/RF24Mesh_Example_Master	0	0	0	0

arduino:samd:mkrzero

Sketch	Flash	%	RAM for global variables	%
examples/RF24Mesh_Example	0	0	0	0
examples/RF24Mesh_Example_Master_Statics	0	0	0	0
examples/RF24Mesh_Example_Master_To_Nodes	0	0	0	0
examples/RF24Mesh_Example_Node2Node	0	0	0	0
examples/RF24Mesh_Example_Node2NodeExtra	0	0	0	0
examples/RF24Mesh_SerialConfig	0	0	0	0
examples/RF24Mesh_Example_Master	0	0	0	0

[TMRh20]

@copilot Change the words "The following code can be commented out in a production environment" to "The following code can be un-commented in a production environment" in this PR for all the changes

[Copilot]

@copilot Change the words "The following code can be commented out in a production environment" to "The following code can be un-commented in a production environment" in this PR for all the changes

Done in 76c4d06 — updated "can be commented out" to "can be un-commented" in all 6 files.

[TMRh20]

Looks good to me

[2bndy5]

style mistake in the C++ comment: ; i< mesh., but the examples serve their purpose.