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| * File -> Examples -> RadioHead -> Feather -> RadioHead69_RawDemo_TX | | * File -> Examples -> RadioHead -> Feather -> RadioHead69_RawDemo_TX |
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| + | == About Antennas == |
| + | {{ambox-stop|text=The RFM69HCW will not work without antenna, even at 1m distance of each other.}} |
| + | |
| + | <div style="margin: 15px 0; background: rgba(255,204,102,.3); display: block; padding: 15px 15px 15px 15px; -webkit-border-radius: 2px; -moz-border-radius: 2px; border-radius: 2px; border: 1px solid #ff9900;" >The antenna design is a key feature to ensure a reliable communication over a long distance.</div> |
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| + | For this example, a simple wire twisted in the antenna hole will do a great job for testing. |
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| + | '''Please wait before soldering the wire inside the antenna hole!'''. |
| + | The antenna hole can be populated with: |
| + | * a simple wire |
| + | * a {{pl||µFL SMT antenna connector}} where you could plug various kind of antenna. |
| + | * a {{pl||PCB SMA Connector}} where you could plus various kind of antenna. |
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| + | A µFl connector (also named uFl) is locking to this: |
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| + | [[Fichier:ENG-CANSAT-RFM69HCW-TEST-uFL-connector.png]] |
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| + | A PCB SMA Connector is locking to this: |
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| + | [[Fichier:ENG-CANSAT-RFM69HCW-TEST-SMA-connector.png]] |
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| + | == The Emitter == |
| + | We will prepare our message emitter, typically stored inside the CanSat can. |
| + | |
| + | This will involve: |
| + | * The Feather M0 Express plateform |
| + | * One of the RFM69HCW 433 Mhz module |
| + | * An wire antenna |
| + | |
| + | To ease the learning, we will also connect the Father |
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| {{ENG-CANSAT-TRAILER}} | | {{ENG-CANSAT-TRAILER}} |