ENG-CANSAT-RFM69HCW-TEST - Historique des versions

Admin : /* Forewords */

2022-02-27T21:41:12Z

Forewords

2021-10-20T19:39:34Z

Tuned frequency

2021-10-20T19:26:13Z

Encyption Key

2021-10-20T19:24:07Z

Encyption Key

2018-11-14T14:59:52Z

Wiring

2018-10-13T11:11:09Z

About Antennas

2018-10-13T10:26:40Z

About Antennas

2018-10-12T19:49:31Z

Wiring

2018-10-12T19:49:13Z

Wiring

2018-10-12T19:48:41Z

Addressed & Reliable Communication

@@ Ligne 8 : / Ligne 8 : @@
 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'''.
-In this simple exemple:
+In this simple example:
 # The '''Data Emitter''' will send a message and wait 500ms for a response.
 # The '''Data Receiver''' will receive the message.

← Version précédente		Version du 20 octobre 2021 à 19:39
Ligne 84 :		Ligne 84 :

	where the tuned frequency is declared with the constant '''RF69_FREQ'''.		where the tuned frequency is declared with the constant '''RF69_FREQ'''.
		+
		+	{{ambox-stop\|text=Use the frequency assigned to your team by the instructor.}}
		+
		+	In packet radio, several teams can share the same frequency if they use distinct encryption key.
		+
		+	Like TCP (from TCP/IP network), the packet radio is able to detect packet colission try to recover from it.
		+
		+	However, more teams share the same frequency, more collision we have.

	=== Encyption Key ===		=== Encyption Key ===

@@ Ligne 95 : / Ligne 95 : @@
 rf69.setEncryptionKey(key);</syntaxhighlight>
-{{ambox-stop|text=It is highly recommended for each team to define their proper encryption key.}}
+{{ambox-stop|text=It is highly recommended for each team to define its own encryption key.}}
 '''When all the teams do use the same frequency and the same key''' then they will all receives the messages from the other teams sending messages. Your messages will also been received by all the other teams.

@@ Ligne 94 : / Ligne 94 : @@
 x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
 rf69.setEncryptionKey(key);</syntaxhighlight>
 === Transmission Power ===

@@ Ligne 116 : / Ligne 116 : @@
 === Wiring ===
-[[Fichier:ENG-CANSAT-RFM69HCW-Wiring-Feather.jpg|480px]]
+[[Fichier:ENG-CANSAT-RFM69HCW-Wiring-Feather-v2.jpg|480px]]
 {| class="wikitable" border="1"

@@ Ligne 47 : / Ligne 47 : @@
 == About Antennas ==
 {{ambox-stop|text=The RFM69HCW will not work without antenna, even at 1m distance of each other.}}
@@ Ligne 58 : / Ligne 56 : @@
 * a {{pl|1418|µFl SMT antenna connector}} where you could plug various kind of antenna.
 * a {{pl|1419|PCB SMA Connector}} where you could plus various kind of antenna.
 A µFl connector (also named uFl) is looking to this:

@@ Ligne 59 : / Ligne 59 : @@
 * a {{pl|1419|PCB SMA Connector}} where you could plus various kind of antenna.
-A µFl connector (also named uFl) is locking to this:
+A µFl connector (also named uFl) is looking to this:
 [[Fichier:ENG-CANSAT-RFM69HCW-TEST-uFL-connector.jpg|150px]]
-A PCB SMA Connector is locking to this:
+A PCB SMA Connector is looking to this:
 [[Fichier:ENG-CANSAT-RFM69HCW-TEST-SMA-connector.jpg|150px]]

@@ Ligne 262 : / Ligne 262 : @@
 === Wiring ===
-[[Fichier:ENG-CANSAT-RFM69HCW-Wiring-Arduino.jpg|640px]]
+[[Fichier:ENG-CANSAT-RFM69HCW-Wiring-Arduino.jpg|480px]]
 {| class="wikitable" border="1"

@@ Ligne 360 : / Ligne 360 : @@
 === Addressed & Reliable Communication ===
-More complex setup can used addressed communication and '''Reliable Datagram'''.
+More complex setup could used addressed communication and '''Reliable Datagram'''.
-Addressed communication allows you to associate a unique identifier (an integer value) to each RFM69 module. This allows detect the sender when receiving a message on the frequency and to act properly.
+* '''Addressed communication''' allows you to associate a unique identifier (an integer value) to each RFM69 module. This allows detect the sender when receiving a message on the frequency and to act properly.
+* '''Reliable Datagram''' do a lot of management with connection to make sure that the packets were received. You do not have have to send the acknowledgement in your code, the Reliable Datagram take care of it for you.
 The '''RadioHead''' library contains the examples {{fname|RadioHead69_AddrDemo_RX}} and {{fname|RadioHead69_AddrDemo_TX}} that demonstrate the adressed and reliable communication. See the [https://learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-breakouts/using-the-rfm69-radio#addressed-rx-and-tx-demo-9-50 Addressed RX and TX Demo]  on the Adafruit's learning system.
 {{ENG-CANSAT-TRAILER}}