openrcforums

Guys, i have tried to search this issue and found some few explanations but dont really understand. In the radio menu of er9x you can see and change the modes from 1 to 2 for example. But that does nothing in my transmitter. I wanted to see if its a problem with my tx or this is a known issue and is...

i want to invest into a ersky9x board and support the community, but now with all that talk of new 9xr radio or Frsky x12d, i want to see what people think of it and if er9x would run good on that platform. I think we would have the possibility to keep the er9x with it.

here is the inside view, anywhere you see shrink tube on wires is actually pins from servo wires connected together, this way all wires could be disconnected without resoldering

ok will take some pics of it now.

I was using USBASP programmer, which i took a step further and used pins from servo wires with shrink tubes, this way i can connect and disconnect my programmer and hence no need to keep those extra wires inside the transmitter

heres a better illustration, this did in fact helped the flickering of the lit screen, but i am not sure if it created the weird issues with pitch curves. Whats weird also is that i cant always recreate the same effect. These issues sort of come and go...

but back to the subject, i have used a bs170rlag transistor and instead of soldering a 10k resistor (like i have been advised), i have soldered 470 ohm resistor (only one i had at hand) to wire (Ground wire and wire leading to the ATMEGA pin 17) on the backlight board

i got it from this schematics, but should have called it MISO, MOSI, PC6, PC7
sorry guys i probably made it heck of confusing

Pins 6 and 7 never used? I've seen some pictures either here at 9x or rcg or elsewhere where pins 41, 42 are numbered as 6, 7, when counting MCU pins from top left. It's easy to count to 6, less obvious to 42... I often cry when I see the same labeled transistor with same specs but different pinout...

BTW, i was glad to fix my other issue with the other "FLYSKY" 9x radio. My menu button wasnt working, so i ended up removing the button and re soldering one from my first "unfortunate board" ( my first telemetry try outs =) ). Works like a charm now. - 1 points to quality assuran...

Showmaster: criticism is only welcome, even though i am a total noob in circuitry and stuff i should have called the pins its actual names. I forget, that these threads would be looked at by others and wasnt conscious of that, was just concentrated on my problem. Gohsthb: it was in fact me =) you ad...

oh by that i meant relocation of miso mosi

jhsa wrote:

orentlikher wrote: - frsky dht module
- telemetry mod with freeing up pins 2,3 and rerouting it to pins 6,7 of atmega

Something here doesn't sound quite right..

by that i meant the telemetry mod where you have to solder wires to atmega chip

Double check the position of the buttons under the main board. I had one that was off just enough where it would work fine if the main board wasn't screwed down tight. I readjusted the positioning of the button pieces and re tightened the screws and it was fine after that. thank you i will def check

oh and instead of installing 10 k resistors which i didnt have on hand i installed 470 ohm between ground + atmega wire on backlight board....maybe thtats what messing things up. p.s. i have ordered another 9x radio (original flysky) which i am keeping as a spare and even that is having problems so ...

well i am planning to get into nitro helis and want a radio which would be rock solid. i love the software and telemetry mods of the er9x but would love that on a better platform than 9x. so far i have modded my 9x with: - frsky dht module - telemetry mod with freeing up pins 2,3 and rerouting it to...

also the reason i want to try this on a better radio is because a nitro bird is more exp and would be dangerous to loose control of. It seems my turnigy 9x is not very reliable. At times I have to turn it on a few times because sometimes if I turn it on once it would show nothing on the screen and l...

Guys, Is it possible to make this telemetry mod on other radios like futaba 9ch or hitec? I want to get into larger nitro helis and wanted a better radio like futaba, etc, but I love the er9x software and the ability of telemetry options on the tx screen. Is it possible to mod the other radios to ou...

thank you for your reply, Showmaster.. i wanted to use 10k resistor but didnt have one on hand and used 470 ohm. maybe thats why im having problems. it is hk backlight...if i remember correctly i installed the resistor (as per 9x members suggestions) across the atmega pin wire and ground wire coming...

Hey guys, How are you guys? Ive been enjoying sometime flying (or i should say learning to fly) and my modded with your help TX. I am running er9x-frsky version 753 and have the telemetry mod, backlight mod and installed a resistor to stop backlight from flickering. Lately i have been having a weird...

yes heli stuff is great, i just got into the rc hobby and my dream was always fpv stuff, so hopefully little by little i will get to flying planes and eventually fpv....but iam sure helis will always be the intricate and exciting part of this hobby

also i had a separate issue with my vario sensor for frsky hub, have anyone experienced it giving some non-true values? it seems to give different values after turning on/off tx. I am testing it indoors, maybe thats the problem...

thank you for your help guys. Well it started with me trying to calibrate the fly bar with the e.limits and i saw the option to set it on, however it makes sense now that it goes past 125%. Then playing around in eepe i saw a trims tab, which isnt displayed as a separate display with values, but i g...

guyz how come there is no Trim Option in Model Settings on my er9x r753? in eepe i can see that tab (trims) but not in the tx, how can i set e.limits then without the trims tab in tx and without burning the new eeprom? im new to er9x so please excuse me if i said something that doesnt make sense, i ...

yes you are right. I will change the resistor tomorrow. Also with the 470 ohm it def works but still once in a blue would flicker, so higher value should do the trick 100%. Thanks again for your help. Its been a long road getting all the ticks resolved with this radio. I hope it will stay stable fro...

beautiful , worked like a charm =) even though i had to just perform a micro surgery getting the two leads of mosfet exposed in a isolated by heat tube and lots of glue mess. hehe Also i didnt have any high value resistors at hand and just used what i had which was a 470 ohm. It works!! but should i...

thank you Gohst, I will def. try it, let you know how it went....

here i found an image of same procedure but with a resistor at the black line ( of my previous image). Gohst, you however sugest a resistor between line 2 and 3, correct? should I solder it parallel just as i drew it in the image?

i connected it as per the instruction for backlight install. Gohst I apologize but iam not too electronically inclined.. Could you let me know which line to add resistor to? is it the ground line to the backlight?

the only thing, which is annoyingly persistent after everything else seems to work good is the backlight. I have it on for 5s, then if nothing is pressed it goes out. The only thing is that it doesnt go out completely, rather that it dims a lot. Its still on (just very dimmed) and annoyingly flicker...

Hello Guyz, Once again I am so amazed at how great this forum is and how helpful you all are. As some might remember my previous issues led to a bricked tx and some spare parts. After finally getting my new tx, I successfully repeated the telemetry mod and all worked great. My exp with previous tx h...