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--- telemetry [2016/11/27 11:48]
sirdomsen created
+++ telemetry [2018/05/14 00:28] (current)
sirdomsen [Quick Devo setup:]
@@ Line 1: / Line 1: @@
-====   Telemetry   ====
+==== Telemetry ====
+This page is based on [[https://www.rcgroups.com/forums/showpost.php?p=36279599&postcount=6575|This RCGroups Post]]\\
+See also this other [[https://www.rcgroups.com/forums/showpost.php?p=36813918&postcount=7660|RCG post]].
+==== Quick Devo setup: ====
+The quad should have telemetry enabled by default
+  * Devo: select protocol Bayang, set protocol option "Telemetry" to on
+  * Add one or more of "**Loss**, **Holds**  , **Batt/Volt2**  , **RxV/Volt1**" to the main screen
+  * You should now see the data on the main screen after binding
+ \\ **Devo 7e and other versions update info:** \\  \\ The telemetry is present in deviation firmware in the latest nightlies, currently. That means you may need to flash a recent nightly ( dec 2016 or newer) to make use of telemetry with the bayang protocol, and your flashed quadcopter. \\  \\ Please back-up the model files, and perhaps other files just in case, when upgrading the transmitter firmware. \\  \\ To enable telemetry , hit enter when selecting bayang protocol, the same as enabling telemetry for other protocols, such as DSMX \\  \\ The protocol with telemetry enabled will **only bind to a quad with telemetry capability**. With telemetry off, it will bind to all quads, including factory firmware, and telemetry quads. \\  \\  \\ **Telemetry data:** \\  \\ The quad sends battery voltage, battery voltage- compensated against throttle , packets received ( reception quality indicator ) , and battery low -led flash signal \\  \\ Additionally, the tx generates telemetry reception stats. \\  \\ **Telemetry names:**
+Telemetry names are shared with the dsm2 protocol, and as such, their names are not very appropriate to describe the quantity they represent.
+ \\ ***Fades_L**  - led battery low flashing= 100 , otherwise 0 \\ ***Loss**  - TX's telemetry reception quality indicator in packets per seconds (max 200) \\ ***Holds**  - quad's reception indicator in packets per seconds (max 200 ) \\ ***RxV**  -**Volt1**- real battery voltage \\ ***Batt**  -**Volt2**- compensated battery voltage \\  \\  \\ **Alarms:**  Some alarms could be setup for telemetry data. Make sure to fly in range of telemetry if you rely on them only. Telemetry range is smaller than the range of a tx with a PA module. \\ FadesL > 1 will create an alarm that sounds if the leds flash a low battery code \\ Batt <= 3.40 is ok for low battery alarm - using voltage compensation settings from config.h \\ Rxv <= 2.90 - real battery voltage - this would be more like a traditional lvc that sounds on max throttle sometimes \\ The real voltage goes down a lot, so it may not be very useful. An alarm of 2.8 - 3.0 could be used.
+**Additional:** \\ Since the telemetry range is shorter compared to the tx range ( with PA ) , there is no point setting an alarm for quad reception strenght, as the telemetry will probably fail before that level is reached.
+The quadcopter only sends telemetry after a packet is received from the transmitter. This is to avoid on-air clashes when the code hopping becomes unsyncronized. Because of this, the telemetry rate will go down when reception is poor on the quadcopter.
+**HACKs:**
+[[https://www.rcgroups.com/forums/showpost.php?p=39529162&postcount=594|MCU Utilisation]]

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