New Jumper T8 SG Lite?

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22 Aug 2018 16:54 #70389 by robca
New Jumper T8 SG Lite? was created by robca
Has anyone seen this? www.banggood.com/Jumper-T8SG-Lite-Multi-...itter-p-1338229.html

Price is interesting, and seems to be a great Devo 7e replacement for people who like smaller transmitters, but the pictures seem to show very low quality gimbals

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23 Aug 2018 00:06 #70396 by Gerry
Replied by Gerry on topic New Jumper T8 SG Lite?
Saw that one yesterday as well. Didn't notice the gimbals, but did notice that is only supports FrSky & S-FHSS protocols.
Also saw a Jumper T12 OpenTx version as well.

Devo 7e A7105 NRF24L01 CC2500 2x3 way & voice, Devo 12e 4 in 1 & voice.
FFS (Forever Fixing Stuff)

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23 Aug 2018 00:20 #70397 by robca
Replied by robca on topic New Jumper T8 SG Lite?
In the online manual (from the BG link) it mentions that supports all Deviation TX protocols, though... given that all Jumper Tx have built-in multimodule, seems weird to build a version with only the C2500 module. It would not be the first time BG has the wrong specs...

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23 Aug 2018 01:03 #70399 by Gerry
Replied by Gerry on topic New Jumper T8 SG Lite?
The manual says supports "many different protocols" not all Deviation protocols, and specifically says Frsky & S-FHSS. Price is very cheap.

Devo 7e A7105 NRF24L01 CC2500 2x3 way & voice, Devo 12e 4 in 1 & voice.
FFS (Forever Fixing Stuff)

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23 Aug 2018 16:00 #70410 by Scousethief
Replied by Scousethief on topic New Jumper T8 SG Lite?


Everything is kept to a minimum which i like.


Standard micro USB is included




First internal pictures.

The internal wiring is exactly what i would want from a modern transmitter. A main board as the central processing unit with all "add ons" being connected by simple ribbon cables that are removable, this is the perfect method for a Transmitter as it means that any future upgrades could be added by simply swapping components with the minimum of fuss.


The gimbals , the most important and by far the biggest query that anybody should have , trading the typical gimbal on a large mechanical cradle for a smaller more compact Gamepad style should have been adopted by manufacturers long ago. I understand that there are questions with regard to stick resolution but we should be now be able to create something that far surpasses the typical older style gimbal in both terms of resolution and reliability.


Gimbal resolution and range testing

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23 Aug 2018 16:07 #70411 by robca
Replied by robca on topic New Jumper T8 SG Lite?
What protocols does it support? Does it really have only a CC2500 module, as it looks from your picture?

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23 Aug 2018 16:08 - 23 Aug 2018 16:09 #70412 by Scousethief
Replied by Scousethief on topic New Jumper T8 SG Lite?
Yes , there is no other module installed Available protocols are : Frsky, Frsky-V8, FrskyX,Skyartec,S-FHSS,Corona,PPM,USBHID.


I have literally just unsoldered an a7105 from a wltoys transmitter to see if theres a way to mod it into the radio
Last edit: 23 Aug 2018 16:09 by Scousethief.

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25 Aug 2018 02:30 #70442 by JayDrone
Replied by JayDrone on topic New Jumper T8 SG Lite?
is there anyway to add more protocols to this say the bugs protocol or a syma protocol

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25 Aug 2018 23:01 #70454 by Scousethief
Replied by Scousethief on topic New Jumper T8 SG Lite?
This is what I am trying to find out, the RF board connector is a pretty standard 10 pin block so hopefully there will be a way. I have asked jumper for the pinout so hopefully they might oblige, otherwise I am sure the community will come up with something suitable.

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03 Sep 2018 17:31 #70630 by vlad_vy
Replied by vlad_vy on topic New Jumper T8 SG Lite?
Jumper Lite tx module connector pinout:

Top left to bottom left:
B14 MISO pin35
B13 SCK pin34
A15 pin50
A13 TMS pin46
GND

Top right to bottom right:
B12 NSS pin33
B15 MOSI pin36
B11 pin30
A14 TCK pin49
3.3V

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11 Sep 2018 12:36 #70794 by Scousethief
Replied by Scousethief on topic New Jumper T8 SG Lite?
So when attaching an A7105 is this the correct pin match ? ......

SCS to A14-TCK-PIN49
SCK to B13-SCK-PIN34
SDIO toB15-MOSI-PIN36
GPio- B14-MISO-PIN35--- Not needed
GND-GND
3V to 3V

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