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modifications
Modifications
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Ligne 200 :
Ligne 200 : − + + − + − + − + − − Ligne 217 :
Ligne 216 : − + − <syntaxhighlight lang="c">// Change to 434.0 or other frequency, must match RX's freq!+ − #define RF69_FREQ 433.0+ − </syntaxhighlight>+ + + + + + + + − {{underline|'''Activate the Serial Line:'''}}+ − No need to change here as we are using an Arduino UNO.+ − +
→The code
The frequency and encryption key must be updated from team to team to avoids messages collisions and cross-over transmission between the teams.
The frequency and encryption key must be updated from team to team to avoids messages collisions and cross-over transmission between the teams.
As the organisator for your team frequency according to the Frequency Plan
As the organisator for your team frequency according to the [[ENG-CANSAT-PICO-FREQUENCY-PLAN|Frequency Plan ]]
{{underline|'''Update for frequency plan, encryption key:'''}}
{{underline|'''Update for frequency plan, encryption key:'''}}
The '''frequency''' used by the receiver RFM69HCW must be exactly the same as the emitter!
* The '''frequency''' used by the receiver RFM69HCW must be exactly the same as the emitter!
* The '''Encryption key''' used by the receiver RFM69HCW must be exactly the same as the emitter!
The '''Encryption key''' used by the receiver RFM69HCW must be exactly the same as the emitter!
* The '''Node ID''' is the target node id (0..255) where the emitter must sent the messages.
The '''Node ID''' is the target node id (0..255) where the emitter must sent the messages
Locate the following lignes:
Locate the following lignes:
</syntaxhighlight>
</syntaxhighlight>
And update it to:
And update the value for '''FREQ''' and '''ENCRYPTION_KEY'''.
The NODE_ID doesn't have to be updated, its is used as node identifier allowing message & ACK exchange between one receiver and several emitter (each having an unique NODE_ID (for the same ENCRYPTION_KEY and FREQ).
{{underline|'''Openning the Serial Line:'''}}
As we want to see the received message, we will open a terminal to receives the messages over the USB-Serial line.
This can be done with the help of:
* Thonny IDE (that will automatically open the USB-Serial port)
* Putty (just open the USB-Serial port)
* mpremote
Just starts the script and wait for the message to comes
[[Fichier:ENG-CANSAT-PICO-RFM69HCW-TEST-20.png]]
Voilà, We are ready to compile and upload.
Voilà, We are ready to test the emitter (cansat).
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