Ligne 6 : |
Ligne 6 : |
| * a '''Data Receiver''' (Base Station) made with the second RFM69HCW coupled to another Pico microcontroler. | | * a '''Data Receiver''' (Base Station) made with the second RFM69HCW coupled to another Pico microcontroler. |
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− | As the kit contains only one micro controller (the Feather M0 Express), we will use the very common '''Arduino UNO''' (not included) as micro controller for the '''Data Receiver'''. | + | As the kit contains contains two Pico microcontroller we will be able to create the "Data Emitter" on the CanSat as well as the Data Receiver at the ground station. |
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| In this simple example: | | In this simple example: |
− | # The '''Data Emitter''' will send a message and wait 500ms for a response. | + | # The '''Data Emitter''' will send a message and wait 500ms for a response (ACK). |
| # The '''Data Receiver''' will receive the message. | | # The '''Data Receiver''' will receive the message. |
− | # The '''Data Receiver''' will send a reply. | + | # The '''Data Receiver''' will send a ACK reply. |
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| [[Fichier:ENG-CANSAT-PICO-RFM69HCW-TEST-00.jpg|640px]] | | [[Fichier:ENG-CANSAT-PICO-RFM69HCW-TEST-00.jpg|640px]] |
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− | As we will see, there are 2 key items will be highlighted: | + | As we will see, there are 2 key items to be highlighted: |
− | # The frequency must be identical in the emitter and receiver (eg: 433.0 MHz in this example). | + | # The frequency must be identical in the emitter and the receiver (eg: 433.1 MHz in this example). |
| # The encryption key must be identical on the both side. | | # The encryption key must be identical on the both side. |
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| {{ENG-CANSAT-PICO-TRAILER}} | | {{ENG-CANSAT-PICO-TRAILER}} |