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Seven Segment Display with Digi XBee

3) Configure the Radio

If you’re not familiar with configuring radios using AT commands, review the steps in the Basic Digi XBee 802.15.4 Chat tutorial, which walks you through configuring CoolTerm to program the radios.

  • Insert the Digi XBee into the Explorer USB and connect it to your computer.
  • Launch CoolTerm and connect to the Digi XBee.
  • Here are the commands we’re going to use to configure the radio:
Function Command Parameter
Reset ATRE N/A (resets the radio to its factory settings)
PAN ID ATID 3001 (any address from 0 to FFFE will do)
MY Address ATMY 2
Pin 0 I/O configuration ATD0 4 (digital output, LOW on startup)
Pin 1 I/O configuration ATD1 4 (digital output, LOW on startup)
Pin 2 I/O configuration ATD2 4 (digital output, LOW on startup)
Pin 3 I/O configuration ATD3 4 (digital output, LOW on startup)
Pin 4 I/O configuration ATD5 4 (digital output, LOW on startup)
Pin 5 I/O configuration ATD5 4 (digital output, LOW on startup)
Pin 6 I/O configuration ATD6 4 (digital output, LOW on startup)
Pin 7 I/O configuration ATD7 4 (digital output, LOW on startup)
I/O input address ATIA 1 (accept data from any transmitting radio)
Write to memory ATWR N/A (save the settings to flash memory)
  • Here’s what your terminal session might look like. The user input is in bold:
+++
OK
ATRE
OK
ATID 3001
OK
ATMY 2
OK
ATD0 4
OK
ATD1 4
OK
ATD2 4
OK
ATD3 4
OK
ATD4 4
OK
ATD5 4
OK
ATD6 4
OK
ATD7 4
OK
ATIA FFFF
OK
ATID
3001
ATMY
2
ATD0
4
ATD1
4
ATD2
4
ATD3
4
ATD4
4
ATD5
4
ATD6
4
ATD7
4
ATIA
FFFF
ATWR
OK

Note: Remember to issue the ATWR command when you’re done so that the settings are saved in the radio’s flash memory. If you don’t issue this command, the radio will revert to its old settings when it loses power.

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