=== Mesh Network Set up (Many-To-One) ===

• Configure all three remote devices
  • add all three XBees (Coordinator, relay and router)
  • update the firmware of each module
    • Function Set: DigiMesh 2.4 TH PRO
    • Firmware Version: Newest value
  • Configuring the first device (Coordinator)
    • First click the default parameter setting
    • Then change these parameters
      • ID: 7FFF
      • NI: SENDER
      • API: API enabled [1]
      • IMPORTANT: there is already an empty space in NI, so be sure to delete that before naming module
  • Configuring the second device (can be the router or relay XBee)
    • Click the default parameter to reset parameters
    • Change parameters to:
      • ID: 7FF
      • NI: Relay_1
      • API: Transparent Mode [0] ( or you can do 1, we just left it at 0)
  • Write the radio settings
  • Configure the third device exactly the same as the second device. Setting NI as Relay_2
  • Disconnect both the relay and router XBees and put them into their own power supply (we used two laptops)
    • Each module should be plugged into their own power supply by now
    • Radio modules should only contain the coordinator now
  • Using the laptop that has the coordinator, select the coordinator, and click the “discover the radio nodes in the same network
  • add all selected devices (relay and router Xbees) in the discovering remote devices

=== Testing the XBees Communications ===

• Using the laptop containing the coordinator (API 1 XBee or SENDER):
  • Wirelessly connect to Relay_1 and Relay_2
  • Place laptop at one end of hallway
• Using the laptop contained the router (Relay_1):
  • Open up XCTU program
  • Place laptop in between SENDER and Relay_2:
• Using the laptop contained the second router (Relay_2):
  • Start up XCTU
  • Place laptop past Relay_1
• After finishing the placement of the three XBees communicate from Relay_2 by creating packets
  • Relay_1 should receive the packets as ASCII values
  • SENDER should receive the packet as ASCII values and also the address of Relay_2
• After verifying that all 3 Xbees are communicating start a range test with SENDER computer
  • In range test, select sender address and Relay_2 address
  • Increase distance as far as possible

=== Testing with PCB ===

• Place Relay_1 XBee on PCB
• Connect PCB to battery
• Same configuration of XBees similar to above where starting from beginning it will be: Sender→Relay_1→Relay_2
• Start by sending packets from Relay_2 and see if Sender is receiving packets
• Start range test with Sender computer
• Complete range test

References:

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