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Yeah, just realised my mistake after looking at the Schematic of ErSky. Thanks Rob.

I had a question related to backlight. I'm using Hobbyking backlight and directlly hook up the backlight into the connector (6 cables pins), no modification done. The Ersky board that i have also still original from Brent (part of first 100 boards I guess). Shall I expect the backlight to automatica...

Am I the first in Asia?

Yovi
Singapore

contact by PM here or in daddyhobby using same nickname.

Hi Brent,

Have you try the idea of having parallel 3.3v regulator? I'm thinking, if this idea works, it could be the cleanest solution, although most of the power still wasted.

Thanks

Yovi

I really envi with you guys, mine still on its ways... Hopefully I can get it by this weekend.

Where do you solder the 5v from FrSkyLite? If you take it from the TX mainboard, it will be like this. Try solder the 5v connection to a regulator board where the buzzer is, look at one of the tutorial for Speaker and Heptic modification, the tutorial will shown where is the 5v solder point in the r...

Just wondering if anyone has more information on the SPI protocol use by Spektrum. I know few peoples in rcgroup has done it earlier but some information has been deleted. I have done sniffing on the SPI bus and save the log but, based on this log and CYRF register information we can figure out how ...

Well, we can always use another uC like ATTiny to translate from serial protocol that currently supported by ER9x become SPI communication to the RF Chip.

This way we can remove certain limitation that exist on modules that we use right now like, number of channels, have Full range, etc.

FYI guys, the upgrade module now only $9.99 at ehirobo.com

This is almost the same like CYRF6936 module from artaflex that sold more than $20.

Uphiearl, are there anything else on the other side of the board? If there is nothing else, it means the Devo 8S mainboard directly controlling the CYRF6936 chip, unlike spektrum module who has uC that controlling CYRF6936. If there is no uC, we can use to built custom DSM2 module, and its cheap :) ...

Check out this page:
http://rch4x0r.com/rc_tx_2405.html

Someone had done his analysis on Walkera Tx, this might be usefull.

If i'm not wrong, Walkera also use Cypress RF chip, this will be awesome.

Quote of post directly above removed by your friendly MOD

The 2nd byte in the package contains the model id, during the binding process Rx will remember this model id.

Er9x firmaware use model memory position as the model id and its the same behavior with Spektrum radio.

Just want to report that model match also works with module taken from DX6i

If I'm not wrong DX7 and DX8 is using the same RF module, maybe other that have DX7 or DX8 can verify this?

Is it possible that bit0 and bit6 related to number of channel can be transmitted?

I don't have more than 6 channels rx in hand, I'll try to play around if I have one.

It's my mistake :oops: , i was powering the RF board from Arduino Nano 3.3v supply which is not enough to powering the board during normal operation. During Range Check, the RF board will go into low power mode, and this is the reason why it works when I switch to Range Check mode. I try using other...

Alright, Here is the package that DX6i microcontroller send to the RF board : BIND: c1 01 03 65 05 ff 09 ff 0d ff 11 ff 14 99 RANGE TEST 61 01 00 a1 05 ff 09 ff 0d ff 11 ff 17 5d NORMAL 41 01 00 a1 05 ff 09 ff 0d ff 11 ff 17 5d Hope the above information helpfull.

I found this information about serial data connection for this module: http://www.node-b.de/index.php?page=dx6i-expander Google translate link : http://translate.google.com.sg/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.node-...

I haven't try model match, will try it later.

I'm planing to sniff the serial data send by DX6i mainboard to the RF module, and this way, we can figure out the packages.

Quote of post directly above removed by your friendly MOD The module is the same like the one shown in : http://www.hacksmods.com/tag/er9x-dsm/ Is channel order affecting binding process? Cause I still use RTEA (Default channel order), I'll try to change the channel order later and see whether it m...

Hi All, Thanks for the good work, now I'm almost able to use DMS2 module taken from DX6i in my 9x Radio. I have a problem with it, in order for this to works I need to turn on Switch C (Enable Range check), if I turn off the switch C then Rx (Orange Rx 6 channels) led will go off and servo not respo...